Initial commit
This commit is contained in:
+15
@@ -0,0 +1,15 @@
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node_modules/
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.env
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*.log
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.DS_Store
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# backups
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public/index.html.backup
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public/index.html.save
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# certificates / private keys
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*.key
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*.pem
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*.crt
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cert/
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ssl/
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||||
+623
@@ -0,0 +1,623 @@
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||||
\<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||
<link rel="stylesheet" href="/styles.css" />
|
||||
<script src="/app.js"></script>
|
||||
<title>DNS Checker</title>
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||||
<style>
|
||||
* {
|
||||
box-sizing: border-box;
|
||||
font-family: Arial, sans-serif;
|
||||
}
|
||||
|
||||
body {
|
||||
margin: 0;
|
||||
background: #f4f7fb;
|
||||
color: #172033;
|
||||
}
|
||||
|
||||
.page {
|
||||
min-height: 100vh;
|
||||
padding: 40px 20px;
|
||||
}
|
||||
|
||||
.container {
|
||||
max-width: 980px;
|
||||
margin: 0 auto;
|
||||
}
|
||||
|
||||
.hero {
|
||||
text-align: center;
|
||||
margin-bottom: 32px;
|
||||
}
|
||||
|
||||
.badge {
|
||||
display: inline-block;
|
||||
background: #e8f0ff;
|
||||
color: #285bd4;
|
||||
padding: 8px 14px;
|
||||
border-radius: 999px;
|
||||
font-size: 14px;
|
||||
margin-bottom: 16px;
|
||||
}
|
||||
|
||||
h1 {
|
||||
font-size: 42px;
|
||||
margin: 0 0 12px;
|
||||
}
|
||||
|
||||
.subtitle {
|
||||
color: #5f6b7a;
|
||||
font-size: 17px;
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
.card {
|
||||
background: white;
|
||||
border-radius: 22px;
|
||||
box-shadow: 0 18px 45px rgba(20, 35, 70, 0.08);
|
||||
padding: 24px;
|
||||
margin-bottom: 24px;
|
||||
}
|
||||
|
||||
.form {
|
||||
display: grid;
|
||||
grid-template-columns: 1fr 160px 150px;
|
||||
gap: 12px;
|
||||
}
|
||||
|
||||
input, select, button {
|
||||
height: 52px;
|
||||
border-radius: 14px;
|
||||
border: 1px solid #d8dfeb;
|
||||
font-size: 16px;
|
||||
padding: 0 16px;
|
||||
outline: none;
|
||||
}
|
||||
|
||||
input:focus, select:focus {
|
||||
border-color: #3366ff;
|
||||
box-shadow: 0 0 0 4px rgba(51, 102, 255, 0.12);
|
||||
}
|
||||
|
||||
button {
|
||||
background: #3366ff;
|
||||
color: white;
|
||||
border: none;
|
||||
cursor: pointer;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
button:hover {
|
||||
background: #264fd1;
|
||||
}
|
||||
|
||||
button:disabled {
|
||||
opacity: 0.6;
|
||||
cursor: not-allowed;
|
||||
}
|
||||
.custom-select {
|
||||
position: relative;
|
||||
height: 52px;
|
||||
}
|
||||
|
||||
.select-trigger {
|
||||
width: 100%;
|
||||
height: 52px;
|
||||
background: #ffffff;
|
||||
color: #172033;
|
||||
border: 1px solid #d8dfeb;
|
||||
border-radius: 14px;
|
||||
padding: 0 14px;
|
||||
cursor: pointer;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: flex-start;
|
||||
text-align: left;
|
||||
.select-trigger {
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.select-trigger:hover {
|
||||
background: #f8faff;
|
||||
border-color: #b9c7f8;
|
||||
}
|
||||
|
||||
.select-trigger span:first-child {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 2px;
|
||||
}
|
||||
|
||||
.select-trigger strong {
|
||||
font-size: 16px;
|
||||
line-height: 1;
|
||||
}
|
||||
|
||||
.select-trigger {
|
||||
width: 100%;
|
||||
height: 52px;
|
||||
background: #ffffff;
|
||||
color: #172033;
|
||||
border: 1px solid #d8dfeb;
|
||||
border-radius: 14px;
|
||||
padding: 0 14px;
|
||||
cursor: pointer;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
text-align: left;
|
||||
}
|
||||
|
||||
.select-menu {
|
||||
display: none;
|
||||
position: absolute;
|
||||
top: 60px;
|
||||
left: 0;
|
||||
right: 0;
|
||||
z-index: 20;
|
||||
background: #ffffff;
|
||||
border: 1px solid #d8dfeb;
|
||||
border-radius: 16px;
|
||||
padding: 8px;
|
||||
box-shadow: 0 18px 45px rgba(20, 35, 70, 0.16);
|
||||
}
|
||||
|
||||
.custom-select.open .select-menu {
|
||||
display: grid;
|
||||
gap: 6px;
|
||||
}
|
||||
|
||||
.select-option {
|
||||
height: auto;
|
||||
min-height: 54px;
|
||||
width: 100%;
|
||||
background: transparent;
|
||||
color: #172033;
|
||||
border: none;
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
align-items: flex-start;
|
||||
justify-content: center;
|
||||
gap: 3px;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
.select-option:hover {
|
||||
background: #f4f7ff;
|
||||
}
|
||||
|
||||
.select-option.active {
|
||||
background: #e8f0ff;
|
||||
color: #285bd4;
|
||||
}
|
||||
|
||||
.select-option strong {
|
||||
font-size: 15px;
|
||||
}
|
||||
|
||||
.select-option small {
|
||||
font-size: 12px;
|
||||
color: #667085;
|
||||
}
|
||||
|
||||
.select-option.active small {
|
||||
color: #285bd4;
|
||||
}
|
||||
|
||||
.meta {
|
||||
margin-top: 16px;
|
||||
color: #667085;
|
||||
font-size: 14px;
|
||||
}
|
||||
|
||||
.result-card {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.result-header {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
gap: 12px;
|
||||
margin-bottom: 18px;
|
||||
}
|
||||
|
||||
.location {
|
||||
font-size: 18px;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.status {
|
||||
padding: 7px 12px;
|
||||
border-radius: 999px;
|
||||
font-size: 14px;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.status.success {
|
||||
background: #e9f9ef;
|
||||
color: #187a3d;
|
||||
}
|
||||
|
||||
.status.error {
|
||||
background: #ffecec;
|
||||
color: #b42318;
|
||||
}
|
||||
|
||||
.answers {
|
||||
display: grid;
|
||||
gap: 10px;
|
||||
}
|
||||
|
||||
.answer {
|
||||
background: #f7f9fc;
|
||||
border: 1px solid #e6ebf2;
|
||||
border-radius: 14px;
|
||||
padding: 14px 16px;
|
||||
font-family: Consolas, monospace;
|
||||
word-break: break-word;
|
||||
}
|
||||
|
||||
.empty {
|
||||
color: #667085;
|
||||
background: #f7f9fc;
|
||||
border-radius: 14px;
|
||||
padding: 16px;
|
||||
}
|
||||
|
||||
.stats {
|
||||
display: flex;
|
||||
flex-wrap: wrap;
|
||||
gap: 10px;
|
||||
margin-top: 18px;
|
||||
}
|
||||
|
||||
.stat {
|
||||
background: #f4f7fb;
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
color: #344054;
|
||||
font-size: 14px;
|
||||
}
|
||||
|
||||
.error-box {
|
||||
display: none;
|
||||
background: #fff1f1;
|
||||
color: #b42318;
|
||||
border: 1px solid #ffd0d0;
|
||||
border-radius: 16px;
|
||||
padding: 14px 16px;
|
||||
margin-top: 16px;
|
||||
}
|
||||
|
||||
@media (max-width: 720px) {
|
||||
h1 {
|
||||
font-size: 32px;
|
||||
/* Custom DNS record dropdown fix */
|
||||
.form {
|
||||
grid-template-columns: 1fr 220px 150px;
|
||||
align-items: start;
|
||||
}
|
||||
|
||||
.custom-select {
|
||||
position: relative;
|
||||
height: 52px;
|
||||
z-index: 50;
|
||||
}
|
||||
|
||||
.select-trigger {
|
||||
width: 100%;
|
||||
height: 52px;
|
||||
background: #ffffff !important;
|
||||
color: #172033 !important;
|
||||
border: 1px solid #d8dfeb !important;
|
||||
border-radius: 14px;
|
||||
padding: 0 14px;
|
||||
cursor: pointer;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: flex-start;
|
||||
text-align: left;
|
||||
}
|
||||
|
||||
.select-trigger span:first-child {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 3px;
|
||||
}
|
||||
|
||||
.select-trigger strong {
|
||||
font-size: 15px;
|
||||
line-height: 1.1;
|
||||
color: #172033;
|
||||
}
|
||||
|
||||
.select-trigger small {
|
||||
font-size: 12px;
|
||||
line-height: 1.2;
|
||||
color: #667085;
|
||||
}
|
||||
|
||||
.select-menu {
|
||||
display: none;
|
||||
position: absolute;
|
||||
top: 60px;
|
||||
left: 0;
|
||||
right: 0;
|
||||
z-index: 999;
|
||||
background: #ffffff;
|
||||
border: 1px solid #d8dfeb;
|
||||
border-radius: 16px;
|
||||
padding: 8px;
|
||||
box-shadow: 0 18px 45px rgba(20, 35, 70, 0.16);
|
||||
}
|
||||
|
||||
.custom-select.open .select-menu {
|
||||
display: grid;
|
||||
gap: 6px;
|
||||
}
|
||||
|
||||
.select-option {
|
||||
width: 100%;
|
||||
min-height: 54px;
|
||||
height: auto;
|
||||
background: transparent !important;
|
||||
color: #172033 !important;
|
||||
border: none !important;
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
align-items: flex-start;
|
||||
justify-content: center;
|
||||
gap: 3px;
|
||||
cursor: pointer;
|
||||
text-align: left;
|
||||
font-weight: 400;
|
||||
}
|
||||
|
||||
.select-option:hover {
|
||||
background: #f4f7ff !important;
|
||||
}
|
||||
|
||||
.select-option.active {
|
||||
background: #e8f0ff !important;
|
||||
}
|
||||
|
||||
.select-option strong {
|
||||
font-size: 15px;
|
||||
color: #172033;
|
||||
}
|
||||
|
||||
.select-option small {
|
||||
font-size: 12px;
|
||||
color: #667085;
|
||||
}
|
||||
|
||||
.select-option.active strong,
|
||||
.select-option.active small {
|
||||
color: #285bd4;
|
||||
}
|
||||
}
|
||||
|
||||
.form {
|
||||
grid-template-columns: 1fr;
|
||||
}
|
||||
|
||||
input, select, button {
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
.result-header {
|
||||
align-items: flex-start;
|
||||
flex-direction: column;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<main class="page">
|
||||
<div class="container">
|
||||
<section class="hero">
|
||||
<div class="badge">DNS propagation checker</div>
|
||||
<h1>Check DNS records from Iran</h1>
|
||||
<p class="subtitle">Search A, AAAA, NS, CNAME and MX records using our Iran DNS agent.</p>
|
||||
</section>
|
||||
|
||||
<section class="card">
|
||||
<form class="form" id="dnsForm">
|
||||
<input id="domainInput" type="text" placeholder="example.com" autocomplete="off" />
|
||||
<div class="custom-select" id="recordDropdown">
|
||||
<button class="select-trigger" type="button" id="recordTrigger">
|
||||
<span>
|
||||
<strong id="selectedRecord">A</strong>
|
||||
<small id="selectedRecordDesc">IPv4 address</small>
|
||||
</span>
|
||||
</button>
|
||||
|
||||
<div class="select-menu" id="recordMenu">
|
||||
<button type="button" class="select-option active" data-value="A" data-desc="IPv4 address">
|
||||
<strong>A</strong>
|
||||
<small>IPv4 address</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="AAAA" data-desc="IPv6 address">
|
||||
<strong>AAAA</strong>
|
||||
<small>IPv6 address</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="NS" data-desc="Name servers">
|
||||
<strong>NS</strong>
|
||||
<small>Name servers</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="CNAME" data-desc="Alias record">
|
||||
<strong>CNAME</strong>
|
||||
<small>Alias record</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="MX" data-desc="Mail servers">
|
||||
<strong>MX</strong>
|
||||
<small>Mail servers</small>
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
<button id="checkButton" type="submit">Check DNS</button>
|
||||
</form>
|
||||
|
||||
<div class="meta">
|
||||
Current location: Iran / Tehran
|
||||
</div>
|
||||
|
||||
<div class="error-box" id="errorBox"></div>
|
||||
</section>
|
||||
|
||||
<section class="card result-card" id="resultCard">
|
||||
<div class="result-header">
|
||||
<div>
|
||||
<div class="location" id="locationText">Iran / Tehran</div>
|
||||
<div class="meta" id="queryText"></div>
|
||||
</div>
|
||||
<div class="status" id="statusBadge">success</div>
|
||||
</div>
|
||||
|
||||
<div class="answers" id="answersBox"></div>
|
||||
|
||||
<div class="stats">
|
||||
<div class="stat" id="responseTime">Response time: -</div>
|
||||
</div>
|
||||
</section>
|
||||
</div>
|
||||
</main>
|
||||
|
||||
<script>
|
||||
const form = document.getElementById("dnsForm");
|
||||
const domainInput = document.getElementById("domainInput");
|
||||
const recordDropdown = document.getElementById("recordDropdown");
|
||||
const recordTrigger = document.getElementById("recordTrigger");
|
||||
const recordMenu = document.getElementById("recordMenu");
|
||||
const selectedRecord = document.getElementById("selectedRecord");
|
||||
const selectedRecordDesc = document.getElementById("selectedRecordDesc");
|
||||
|
||||
let selectedRecordType = "A";
|
||||
const checkButton = document.getElementById("checkButton");
|
||||
const resultCard = document.getElementById("resultCard");
|
||||
const errorBox = document.getElementById("errorBox");
|
||||
const locationText = document.getElementById("locationText");
|
||||
const queryText = document.getElementById("queryText");
|
||||
const statusBadge = document.getElementById("statusBadge");
|
||||
const answersBox = document.getElementById("answersBox");
|
||||
const responseTime = document.getElementById("responseTime");
|
||||
|
||||
function showError(message) {
|
||||
errorBox.style.display = "block";
|
||||
errorBox.textContent = message;
|
||||
}
|
||||
|
||||
function hideError() {
|
||||
errorBox.style.display = "none";
|
||||
errorBox.textContent = "";
|
||||
}
|
||||
recordTrigger.addEventListener("click", () => {
|
||||
recordDropdown.classList.toggle("open");
|
||||
});
|
||||
|
||||
recordMenu.querySelectorAll(".select-option").forEach(option => {
|
||||
option.addEventListener("click", () => {
|
||||
selectedRecordType = option.dataset.value;
|
||||
|
||||
selectedRecord.textContent = option.dataset.value;
|
||||
selectedRecordDesc.textContent = option.dataset.desc;
|
||||
|
||||
recordMenu.querySelectorAll(".select-option").forEach(item => {
|
||||
item.classList.remove("active");
|
||||
});
|
||||
|
||||
option.classList.add("active");
|
||||
recordDropdown.classList.remove("open");
|
||||
});
|
||||
});
|
||||
|
||||
document.addEventListener("click", event => {
|
||||
if (!recordDropdown.contains(event.target)) {
|
||||
recordDropdown.classList.remove("open");
|
||||
}
|
||||
});
|
||||
|
||||
function renderAnswers(answers) {
|
||||
answersBox.innerHTML = "";
|
||||
|
||||
if (!answers || answers.length === 0) {
|
||||
answersBox.innerHTML = '<div class="empty">No records found.</div>';
|
||||
return;
|
||||
}
|
||||
|
||||
answers.forEach(answer => {
|
||||
const div = document.createElement("div");
|
||||
div.className = "answer";
|
||||
|
||||
if (typeof answer === "object") {
|
||||
div.textContent = JSON.stringify(answer);
|
||||
} else {
|
||||
div.textContent = answer;
|
||||
}
|
||||
|
||||
answersBox.appendChild(div);
|
||||
});
|
||||
}
|
||||
|
||||
form.addEventListener("submit", async (event) => {
|
||||
event.preventDefault();
|
||||
hideError();
|
||||
|
||||
const domain = domainInput.value.trim().toLowerCase();
|
||||
const type = selectedRecordType;
|
||||
|
||||
if (!domain) {
|
||||
showError("Please enter a domain.");
|
||||
return;
|
||||
}
|
||||
|
||||
checkButton.disabled = true;
|
||||
checkButton.textContent = "Checking...";
|
||||
|
||||
try {
|
||||
const response = await fetch(`/api/check?domain=${encodeURIComponent(domain)}&type=${encodeURIComponent(type)}`);
|
||||
const data = await response.json();
|
||||
|
||||
if (!response.ok || data.status !== "success") {
|
||||
showError(data.error || "Request failed.");
|
||||
return;
|
||||
}
|
||||
|
||||
const item = data.results[0];
|
||||
|
||||
resultCard.style.display = "block";
|
||||
locationText.textContent = `${item.location.country} / ${item.location.city}`;
|
||||
queryText.textContent = `${data.query.domain} · ${data.query.type}`;
|
||||
|
||||
statusBadge.textContent = item.result.status;
|
||||
statusBadge.className = `status ${item.result.status === "success" ? "success" : "error"}`;
|
||||
|
||||
renderAnswers(item.result.answers);
|
||||
|
||||
responseTime.textContent = `Response time: ${item.gatewayTimeMs ?? "-"} ms`;
|
||||
|
||||
if (item.result.status !== "success") {
|
||||
showError(item.result.error || "DNS lookup failed.");
|
||||
}
|
||||
} catch (err) {
|
||||
showError(err.message || "Network error.");
|
||||
} finally {
|
||||
checkButton.disabled = false;
|
||||
checkButton.textContent = "Check DNS";
|
||||
}
|
||||
});
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
Generated
+841
@@ -0,0 +1,841 @@
|
||||
{
|
||||
"name": "dns-checker-app",
|
||||
"version": "1.0.0",
|
||||
"lockfileVersion": 3,
|
||||
"requires": true,
|
||||
"packages": {
|
||||
"": {
|
||||
"name": "dns-checker-app",
|
||||
"version": "1.0.0",
|
||||
"license": "ISC",
|
||||
"dependencies": {
|
||||
"cors": "^2.8.6",
|
||||
"express": "^5.2.1",
|
||||
"express-rate-limit": "^8.5.2",
|
||||
"helmet": "^8.2.0"
|
||||
}
|
||||
},
|
||||
"node_modules/accepts": {
|
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"version": "2.0.0",
|
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"resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
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||||
"dependencies": {
|
||||
"mime-types": "^3.0.0",
|
||||
"negotiator": "^1.0.0"
|
||||
},
|
||||
"engines": {
|
||||
"node": ">= 0.6"
|
||||
}
|
||||
},
|
||||
"node_modules/body-parser": {
|
||||
"version": "2.2.2",
|
||||
"resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz",
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|
||||
"dependencies": {
|
||||
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|
||||
"content-type": "^1.0.5",
|
||||
"debug": "^4.4.3",
|
||||
"http-errors": "^2.0.0",
|
||||
"iconv-lite": "^0.7.0",
|
||||
"on-finished": "^2.4.1",
|
||||
"qs": "^6.14.1",
|
||||
"raw-body": "^3.0.1",
|
||||
"type-is": "^2.0.1"
|
||||
},
|
||||
"engines": {
|
||||
"node": ">=18"
|
||||
},
|
||||
"funding": {
|
||||
"type": "opencollective",
|
||||
"url": "https://opencollective.com/express"
|
||||
}
|
||||
},
|
||||
"node_modules/bytes": {
|
||||
"version": "3.1.2",
|
||||
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|
||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
},
|
||||
"engines": {
|
||||
"node": ">= 0.4"
|
||||
},
|
||||
"funding": {
|
||||
"url": "https://github.com/sponsors/ljharb"
|
||||
}
|
||||
},
|
||||
"node_modules/content-disposition": {
|
||||
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|
||||
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||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
"funding": {
|
||||
"type": "opencollective",
|
||||
"url": "https://opencollective.com/express"
|
||||
}
|
||||
},
|
||||
"node_modules/content-type": {
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"vary": "^1"
|
||||
},
|
||||
"engines": {
|
||||
"node": ">= 0.10"
|
||||
},
|
||||
"funding": {
|
||||
"type": "opencollective",
|
||||
"url": "https://opencollective.com/express"
|
||||
}
|
||||
},
|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"node": ">=6.0"
|
||||
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|
||||
"peerDependenciesMeta": {
|
||||
"supports-color": {
|
||||
"optional": true
|
||||
}
|
||||
}
|
||||
},
|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"es-errors": "^1.3.0",
|
||||
"gopd": "^1.2.0"
|
||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
"engines": {
|
||||
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|
||||
}
|
||||
},
|
||||
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|
||||
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|
||||
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||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
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|
||||
"node_modules/es-errors": {
|
||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
"engines": {
|
||||
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|
||||
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|
||||
},
|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
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|
||||
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|
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||||
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||||
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||||
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|
||||
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||||
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|
||||
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|
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|
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}
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}
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}
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@@ -0,0 +1,18 @@
|
||||
{
|
||||
"name": "dns-checker-app",
|
||||
"version": "1.0.0",
|
||||
"description": "",
|
||||
"main": "index.js",
|
||||
"scripts": {
|
||||
"test": "echo \"Error: no test specified\" && exit 1"
|
||||
},
|
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"keywords": [],
|
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"author": "",
|
||||
"license": "ISC",
|
||||
"dependencies": {
|
||||
"cors": "^2.8.6",
|
||||
"express": "^5.2.1",
|
||||
"express-rate-limit": "^8.5.2",
|
||||
"helmet": "^8.2.0"
|
||||
}
|
||||
}
|
||||
+306
@@ -0,0 +1,306 @@
|
||||
const form = document.getElementById("dnsForm");
|
||||
const domainInput = document.getElementById("domainInput");
|
||||
const recordDropdown = document.getElementById("recordDropdown");
|
||||
const recordTrigger = document.getElementById("recordTrigger");
|
||||
const recordMenu = document.getElementById("recordMenu");
|
||||
const selectedRecord = document.getElementById("selectedRecord");
|
||||
const selectedRecordDesc = document.getElementById("selectedRecordDesc");
|
||||
const checkButton = document.getElementById("checkButton");
|
||||
const errorBox = document.getElementById("errorBox");
|
||||
const resultsContainer = document.getElementById("resultsContainer");
|
||||
const userIpText = document.getElementById("userIpText");
|
||||
|
||||
|
||||
let selectedRecordType = "A";
|
||||
|
||||
function showError(message) {
|
||||
errorBox.style.display = "block";
|
||||
errorBox.textContent = message;
|
||||
}
|
||||
|
||||
function hideError() {
|
||||
errorBox.style.display = "none";
|
||||
errorBox.textContent = "";
|
||||
}
|
||||
|
||||
function formatDnsError(error) {
|
||||
if (!error) {
|
||||
return "DNS lookup failed.";
|
||||
}
|
||||
|
||||
if (
|
||||
error === "ESERVFAIL" ||
|
||||
error === "SERVFAIL" ||
|
||||
error.includes("server failed")
|
||||
) {
|
||||
return "Destination DNS server did not respond with a valid answer.";
|
||||
}
|
||||
|
||||
if (error.includes("No") && error.includes("record found")) {
|
||||
return error;
|
||||
}
|
||||
|
||||
if (error.includes("Domain not found")) {
|
||||
return "Domain was not found.";
|
||||
}
|
||||
|
||||
if (error.includes("timed out") || error.includes("TIMEOUT")) {
|
||||
return "DNS lookup timed out.";
|
||||
}
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
function isPrivateIp(ip) {
|
||||
if (typeof ip !== "string") return false;
|
||||
|
||||
const parts = ip.split(".").map(Number);
|
||||
|
||||
if (parts.length !== 4 || parts.some(part => Number.isNaN(part))) {
|
||||
return false;
|
||||
}
|
||||
|
||||
const a = parts[0];
|
||||
const b = parts[1];
|
||||
|
||||
return (
|
||||
a === 10 ||
|
||||
a === 127 ||
|
||||
(a === 172 && b >= 16 && b <= 31) ||
|
||||
(a === 192 && b === 168) ||
|
||||
(a === 169 && b === 254) ||
|
||||
(a === 100 && b >= 64 && b <= 127)
|
||||
);
|
||||
}
|
||||
|
||||
async function copyToClipboard(text, button) {
|
||||
const oldText = button.textContent;
|
||||
|
||||
function showCopied() {
|
||||
button.textContent = "Copied";
|
||||
button.classList.add("copied");
|
||||
|
||||
setTimeout(() => {
|
||||
button.textContent = oldText;
|
||||
button.classList.remove("copied");
|
||||
}, 1200);
|
||||
}
|
||||
|
||||
function showFailed() {
|
||||
button.textContent = "Failed";
|
||||
|
||||
setTimeout(() => {
|
||||
button.textContent = oldText;
|
||||
}, 1200);
|
||||
}
|
||||
|
||||
try {
|
||||
if (navigator.clipboard && window.isSecureContext) {
|
||||
await navigator.clipboard.writeText(text);
|
||||
showCopied();
|
||||
return;
|
||||
}
|
||||
|
||||
const textarea = document.createElement("textarea");
|
||||
textarea.value = text;
|
||||
textarea.setAttribute("readonly", "");
|
||||
textarea.style.position = "fixed";
|
||||
textarea.style.top = "-9999px";
|
||||
textarea.style.left = "-9999px";
|
||||
|
||||
document.body.appendChild(textarea);
|
||||
textarea.focus();
|
||||
textarea.select();
|
||||
|
||||
const successful = document.execCommand("copy");
|
||||
document.body.removeChild(textarea);
|
||||
|
||||
if (successful) {
|
||||
showCopied();
|
||||
} else {
|
||||
showFailed();
|
||||
}
|
||||
} catch (err) {
|
||||
showFailed();
|
||||
}
|
||||
}
|
||||
|
||||
function createAnswersHtml(result) {
|
||||
if (result.status !== "success") {
|
||||
return `<div class="empty">${formatDnsError(result.error)}</div>`;
|
||||
}
|
||||
|
||||
if (!result.answers || result.answers.length === 0) {
|
||||
return '<div class="empty">No records found.</div>';
|
||||
}
|
||||
|
||||
return result.answers
|
||||
.map(answer => {
|
||||
const value =
|
||||
typeof answer === "object" ? JSON.stringify(answer) : String(answer);
|
||||
|
||||
const warning = isPrivateIp(value)
|
||||
? `<div class="answer-warning">Private / internal IP detected. This domain may be redirected by the local resolver or network.</div>`
|
||||
: "";
|
||||
|
||||
return `
|
||||
<div class="answer">
|
||||
<div class="answer-main">
|
||||
<div class="answer-value">${escapeHtml(value)}</div>
|
||||
<button type="button" class="copy-button" data-copy="${escapeHtml(value)}">Copy</button>
|
||||
</div>
|
||||
${warning}
|
||||
</div>
|
||||
`;
|
||||
})
|
||||
.join("");
|
||||
}
|
||||
|
||||
function escapeHtml(value) {
|
||||
return String(value)
|
||||
.replaceAll("&", "&")
|
||||
.replaceAll("<", "<")
|
||||
.replaceAll(">", ">")
|
||||
.replaceAll('"', """)
|
||||
.replaceAll("'", "'");
|
||||
}
|
||||
|
||||
function createResultCard(item, query) {
|
||||
const dcText = item.location.datacenter ? ` — ${item.location.datacenter}` : "";
|
||||
const locationText = `${item.location.country} / ${item.location.city}${dcText}`;
|
||||
const isSuccess = item.result.status === "success";
|
||||
|
||||
return `
|
||||
<section class="card dns-result-card">
|
||||
<div class="result-header">
|
||||
<div>
|
||||
<div class="location">${escapeHtml(locationText)}</div>
|
||||
<div class="meta">${escapeHtml(query.domain)} · ${escapeHtml(query.type)}</div>
|
||||
<div class="source-badge">${escapeHtml(item.location.sourceLabel || item.location.sourceType || "DNS check")}</div>
|
||||
</div>
|
||||
<div class="status ${isSuccess ? "success" : "error"}">${isSuccess ? "success" : "error"}</div>
|
||||
</div>
|
||||
|
||||
<div class="answers">
|
||||
${createAnswersHtml(item.result)}
|
||||
</div>
|
||||
|
||||
<div class="stats">
|
||||
<div class="stat">Response time: ${item.gatewayTimeMs ?? "-"} ms</div>
|
||||
</div>
|
||||
</section>
|
||||
`;
|
||||
}
|
||||
|
||||
function renderResults(results, query) {
|
||||
resultsContainer.innerHTML = "";
|
||||
|
||||
const ownedResults = results.filter(item => item.location.sourceType === "owned");
|
||||
const externalResults = results.filter(item => item.location.sourceType === "external");
|
||||
|
||||
if (ownedResults.length > 0) {
|
||||
resultsContainer.insertAdjacentHTML(
|
||||
"beforeend",
|
||||
`<div class="result-group-title">Our DNS checks</div>`
|
||||
);
|
||||
|
||||
ownedResults.forEach(item => {
|
||||
resultsContainer.insertAdjacentHTML("beforeend", createResultCard(item, query));
|
||||
});
|
||||
}
|
||||
|
||||
if (externalResults.length > 0) {
|
||||
resultsContainer.insertAdjacentHTML(
|
||||
"beforeend",
|
||||
`<div class="result-group-title">External DNS checks</div>`
|
||||
);
|
||||
|
||||
externalResults.forEach(item => {
|
||||
resultsContainer.insertAdjacentHTML("beforeend", createResultCard(item, query));
|
||||
});
|
||||
}
|
||||
|
||||
resultsContainer.querySelectorAll(".copy-button").forEach(button => {
|
||||
button.addEventListener("click", () => {
|
||||
copyToClipboard(button.dataset.copy, button);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
recordTrigger.addEventListener("click", () => {
|
||||
recordDropdown.classList.toggle("open");
|
||||
});
|
||||
|
||||
recordMenu.querySelectorAll(".select-option").forEach(option => {
|
||||
option.addEventListener("click", () => {
|
||||
selectedRecordType = option.dataset.value;
|
||||
|
||||
selectedRecord.textContent = option.dataset.value;
|
||||
selectedRecordDesc.textContent = option.dataset.desc;
|
||||
|
||||
recordMenu.querySelectorAll(".select-option").forEach(item => {
|
||||
item.classList.remove("active");
|
||||
});
|
||||
|
||||
option.classList.add("active");
|
||||
recordDropdown.classList.remove("open");
|
||||
});
|
||||
});
|
||||
|
||||
async function loadUserIp() {
|
||||
if (!userIpText) return;
|
||||
|
||||
try {
|
||||
const response = await fetch("/api/client-ip");
|
||||
const data = await response.json();
|
||||
|
||||
userIpText.textContent = `Your IP: ${data.ip || "Unknown"}`;
|
||||
} catch (err) {
|
||||
userIpText.textContent = "Your IP: unavailable";
|
||||
}
|
||||
}
|
||||
|
||||
loadUserIp();
|
||||
|
||||
document.addEventListener("click", event => {
|
||||
if (!recordDropdown.contains(event.target)) {
|
||||
recordDropdown.classList.remove("open");
|
||||
}
|
||||
});
|
||||
|
||||
form.addEventListener("submit", async event => {
|
||||
event.preventDefault();
|
||||
hideError();
|
||||
recordDropdown.classList.remove("open");
|
||||
|
||||
const domain = domainInput.value.trim().toLowerCase();
|
||||
const type = selectedRecordType;
|
||||
|
||||
if (!domain) {
|
||||
showError("Please enter a domain.");
|
||||
return;
|
||||
}
|
||||
|
||||
checkButton.disabled = true;
|
||||
checkButton.textContent = "Checking...";
|
||||
|
||||
try {
|
||||
const response = await fetch(
|
||||
`/api/check?domain=${encodeURIComponent(domain)}&type=${encodeURIComponent(type)}`
|
||||
);
|
||||
|
||||
const data = await response.json();
|
||||
|
||||
if (!response.ok || data.status !== "success") {
|
||||
showError(data.error || "Request failed.");
|
||||
return;
|
||||
}
|
||||
|
||||
renderResults(data.results, data.query);
|
||||
} catch (err) {
|
||||
showError(err.message || "Network error.");
|
||||
} finally {
|
||||
checkButton.disabled = false;
|
||||
checkButton.textContent = "Check DNS";
|
||||
}
|
||||
});
|
||||
@@ -0,0 +1,84 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||
<title>NetworkMaster</title>
|
||||
<link rel="stylesheet" href="/styles.css" />
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<main class="page">
|
||||
<div class="container">
|
||||
<section class="hero">
|
||||
<div class="badge">DNS propagation checker</div>
|
||||
|
||||
<h1>Check DNS records with confidence</h1>
|
||||
<p class="subtitle">
|
||||
See how your domain resolves from our own DNS node and trusted external providers.
|
||||
</p>
|
||||
</section>
|
||||
|
||||
<section class="card search-card">
|
||||
<form class="form" id="dnsForm">
|
||||
<input id="domainInput" type="text" placeholder="example.com" autocomplete="off" />
|
||||
|
||||
<div class="custom-select" id="recordDropdown">
|
||||
<button class="select-trigger" type="button" id="recordTrigger">
|
||||
<span>
|
||||
<strong id="selectedRecord">A</strong>
|
||||
<small id="selectedRecordDesc">IPv4 address</small>
|
||||
</span>
|
||||
</button>
|
||||
|
||||
<div class="select-menu" id="recordMenu">
|
||||
<button type="button" class="select-option active" data-value="A" data-desc="IPv4 address">
|
||||
<strong>A</strong>
|
||||
<small>IPv4 address</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="AAAA" data-desc="IPv6 address">
|
||||
<strong>AAAA</strong>
|
||||
<small>IPv6 address</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="NS" data-desc="Name servers">
|
||||
<strong>NS</strong>
|
||||
<small>Name servers</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="CNAME" data-desc="Alias record">
|
||||
<strong>CNAME</strong>
|
||||
<small>Alias record</small>
|
||||
</button>
|
||||
|
||||
<button type="button" class="select-option" data-value="MX" data-desc="Mail servers">
|
||||
<strong>MX</strong>
|
||||
<small>Mail servers</small>
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button id="checkButton" type="submit">Check DNS</button>
|
||||
</form>
|
||||
|
||||
<div class="info-row">
|
||||
<div class="meta">
|
||||
Current location: Iran / Tehran
|
||||
</div>
|
||||
|
||||
<div class="meta user-ip" id="userIpText">
|
||||
Your IP: loading...
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="error-box" id="errorBox"></div>
|
||||
</section>
|
||||
|
||||
<div class="results-container" id="resultsContainer"></div>
|
||||
</div>
|
||||
</main>
|
||||
|
||||
<script src="/app.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 127 KiB |
@@ -0,0 +1,518 @@
|
||||
* {
|
||||
box-sizing: border-box;
|
||||
}
|
||||
body {
|
||||
margin: 0;
|
||||
font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
|
||||
background:
|
||||
radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 32%),
|
||||
linear-gradient(180deg, #eef4ff 0%, #f8fbff 100%);
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
:root {
|
||||
--bg: #eef4ff;
|
||||
--card: #ffffff;
|
||||
--text: #0f172a;
|
||||
--muted: #64748b;
|
||||
|
||||
--primary: #4f46e5;
|
||||
--primary-hover: #4338ca;
|
||||
--primary-soft: #eef2ff;
|
||||
|
||||
--border: #dbe4f0;
|
||||
--input-bg: #ffffff;
|
||||
|
||||
--success-bg: #dcfce7;
|
||||
--success-text: #166534;
|
||||
|
||||
--error-bg: #fee2e2;
|
||||
--error-text: #991b1b;
|
||||
|
||||
--warning-bg: #fff7ed;
|
||||
--warning-border: #fed7aa;
|
||||
--warning-text: #9a3412;
|
||||
|
||||
--answer-bg: #f8fafc;
|
||||
}
|
||||
|
||||
body {
|
||||
margin: 0;
|
||||
background:
|
||||
radial-gradient(circle at top left, rgba(79, 70, 229, 0.16), transparent 32%),
|
||||
linear-gradient(180deg, #eef4ff 0%, #f8fbff 100%);
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.page {
|
||||
min-height: 100vh;
|
||||
padding: 40px 20px;
|
||||
}
|
||||
|
||||
.container {
|
||||
max-width: 980px;
|
||||
margin: 0 auto;
|
||||
}
|
||||
|
||||
.hero {
|
||||
text-align: center;
|
||||
margin-bottom: 32px;
|
||||
}
|
||||
|
||||
.badge {
|
||||
display: inline-block;
|
||||
background: var(--primary-soft);
|
||||
color: var(--primary);
|
||||
padding: 8px 14px;
|
||||
border-radius: 999px;
|
||||
font-size: 14px;
|
||||
font-weight: 700;
|
||||
margin-bottom: 16px;
|
||||
border: 1px solid rgba(79, 70, 229, 0.14);
|
||||
}
|
||||
|
||||
h1 {
|
||||
font-size: 42px;
|
||||
margin: 0 0 12px;
|
||||
letter-spacing: -0.035em;
|
||||
font-weight: 800;
|
||||
line-height: 1.1;
|
||||
}
|
||||
|
||||
.subtitle {
|
||||
color: var(--muted);
|
||||
font-size: 17px;
|
||||
margin: 0;
|
||||
font-weight: 500;
|
||||
line-height: 1.7;
|
||||
}
|
||||
|
||||
.card {
|
||||
background: rgba(255, 255, 255, 0.92);
|
||||
border: 1px solid rgba(219, 228, 240, 0.85);
|
||||
border-radius: 24px;
|
||||
box-shadow: 0 20px 55px rgba(15, 23, 42, 0.08);
|
||||
padding: 24px;
|
||||
margin-bottom: 24px;
|
||||
backdrop-filter: blur(10px);
|
||||
}
|
||||
|
||||
.search-card {
|
||||
position: relative;
|
||||
z-index: 100;
|
||||
}
|
||||
|
||||
.form {
|
||||
display: grid;
|
||||
grid-template-columns: 1fr 220px 150px;
|
||||
gap: 12px;
|
||||
align-items: start;
|
||||
}
|
||||
|
||||
input {
|
||||
height: 52px;
|
||||
border-radius: 14px;
|
||||
border: 1px solid var(--border);
|
||||
background: var(--input-bg);
|
||||
font-size: 16px;
|
||||
padding: 0 16px;
|
||||
outline: none;
|
||||
width: 100%;
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
input::placeholder {
|
||||
color: #94a3b8;
|
||||
}
|
||||
|
||||
input:focus {
|
||||
border-color: var(--primary);
|
||||
box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
|
||||
}
|
||||
|
||||
button {
|
||||
font-family: Arial, sans-serif;
|
||||
}
|
||||
|
||||
#checkButton {
|
||||
height: 52px;
|
||||
border-radius: 14px;
|
||||
border: none;
|
||||
background: linear-gradient(135deg, var(--primary), #2563eb);
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
font-weight: 700;
|
||||
font-size: 16px;
|
||||
padding: 0 16px;
|
||||
width: 100%;
|
||||
box-shadow: 0 12px 24px rgba(79, 70, 229, 0.25);
|
||||
}
|
||||
|
||||
#checkButton:hover {
|
||||
background: linear-gradient(135deg, var(--primary-hover), #1d4ed8);
|
||||
}
|
||||
|
||||
#checkButton:disabled {
|
||||
opacity: 0.6;
|
||||
cursor: not-allowed;
|
||||
}
|
||||
|
||||
.custom-select {
|
||||
position: relative;
|
||||
height: 52px;
|
||||
z-index: 50;
|
||||
}
|
||||
|
||||
.select-trigger {
|
||||
width: 100%;
|
||||
height: 52px;
|
||||
background: var(--input-bg);
|
||||
color: var(--text);
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 14px;
|
||||
padding: 0 14px;
|
||||
cursor: pointer;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: flex-start;
|
||||
text-align: left;
|
||||
}
|
||||
|
||||
.select-trigger:hover {
|
||||
background: #f8faff;
|
||||
border-color: #b9c7f8;
|
||||
}
|
||||
|
||||
.select-trigger span:first-child {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 3px;
|
||||
}
|
||||
|
||||
.select-trigger strong {
|
||||
font-size: 15px;
|
||||
line-height: 1.1;
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.select-trigger small {
|
||||
font-size: 12px;
|
||||
line-height: 1.2;
|
||||
color: var(--muted);
|
||||
}
|
||||
|
||||
.select-menu {
|
||||
display: none;
|
||||
position: absolute;
|
||||
top: 60px;
|
||||
left: 0;
|
||||
right: 0;
|
||||
z-index: 999;
|
||||
background: #ffffff;
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 16px;
|
||||
padding: 8px;
|
||||
box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
|
||||
}
|
||||
|
||||
.custom-select.open .select-menu {
|
||||
display: grid;
|
||||
gap: 6px;
|
||||
}
|
||||
|
||||
.select-option {
|
||||
width: 100%;
|
||||
min-height: 54px;
|
||||
height: auto;
|
||||
background: transparent;
|
||||
color: var(--text);
|
||||
border: none;
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
align-items: flex-start;
|
||||
justify-content: center;
|
||||
gap: 3px;
|
||||
cursor: pointer;
|
||||
text-align: left;
|
||||
font-weight: 400;
|
||||
}
|
||||
|
||||
.select-option:hover {
|
||||
background: #f4f7ff;
|
||||
}
|
||||
|
||||
.select-option.active {
|
||||
background: var(--primary-soft);
|
||||
}
|
||||
|
||||
.select-option strong {
|
||||
font-size: 15px;
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.select-option small {
|
||||
font-size: 12px;
|
||||
color: var(--muted);
|
||||
}
|
||||
|
||||
.select-option.active strong,
|
||||
.select-option.active small {
|
||||
color: var(--primary);
|
||||
}
|
||||
|
||||
.meta {
|
||||
margin-top: 16px;
|
||||
color: var(--muted);
|
||||
font-size: 14px;
|
||||
}
|
||||
|
||||
.result-card {
|
||||
display: none;
|
||||
position: relative;
|
||||
z-index: 1;
|
||||
}
|
||||
|
||||
.result-header {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
gap: 12px;
|
||||
margin-bottom: 18px;
|
||||
}
|
||||
|
||||
.location {
|
||||
font-size: 18px;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.status {
|
||||
padding: 7px 12px;
|
||||
border-radius: 999px;
|
||||
font-size: 14px;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.status.success {
|
||||
background: var(--success-bg);
|
||||
color: var(--success-text);
|
||||
}
|
||||
|
||||
.status.error {
|
||||
background: var(--error-bg);
|
||||
color: var(--error-text);
|
||||
}
|
||||
|
||||
.answers {
|
||||
display: grid;
|
||||
gap: 10px;
|
||||
}
|
||||
|
||||
.answer {
|
||||
background: var(--answer-bg);
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 14px;
|
||||
padding: 14px 16px;
|
||||
word-break: break-word;
|
||||
}
|
||||
|
||||
.answer-main {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
gap: 12px;
|
||||
}
|
||||
|
||||
.answer-value {
|
||||
font-family: Consolas, monospace;
|
||||
word-break: break-word;
|
||||
}
|
||||
|
||||
.copy-button {
|
||||
border: 1px solid var(--border);
|
||||
background: #ffffff;
|
||||
color: var(--primary);
|
||||
border-radius: 10px;
|
||||
padding: 7px 10px;
|
||||
cursor: pointer;
|
||||
font-size: 13px;
|
||||
font-weight: 700;
|
||||
flex-shrink: 0;
|
||||
}
|
||||
|
||||
.copy-button:hover {
|
||||
background: var(--primary-soft);
|
||||
}
|
||||
|
||||
.copy-button.copied {
|
||||
background: var(--success-bg);
|
||||
color: var(--success-text);
|
||||
border-color: var(--success-bg);
|
||||
}
|
||||
|
||||
.answer-warning {
|
||||
margin-top: 8px;
|
||||
background: var(--warning-bg);
|
||||
border: 1px solid var(--warning-border);
|
||||
color: var(--warning-text);
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
font-size: 13px;
|
||||
line-height: 1.5;
|
||||
}
|
||||
|
||||
.empty {
|
||||
color: var(--muted);
|
||||
background: var(--answer-bg);
|
||||
border-radius: 14px;
|
||||
padding: 16px;
|
||||
}
|
||||
|
||||
.stats {
|
||||
display: flex;
|
||||
flex-wrap: wrap;
|
||||
gap: 10px;
|
||||
margin-top: 18px;
|
||||
}
|
||||
|
||||
.stat {
|
||||
background: #f1f5f9;
|
||||
border-radius: 12px;
|
||||
padding: 10px 12px;
|
||||
color: #334155;
|
||||
font-size: 14px;
|
||||
}
|
||||
|
||||
.error-box {
|
||||
display: none;
|
||||
background: var(--error-bg);
|
||||
color: var(--error-text);
|
||||
border: 1px solid #fecaca;
|
||||
border-radius: 16px;
|
||||
padding: 14px 16px;
|
||||
margin-top: 16px;
|
||||
}
|
||||
|
||||
@media (max-width: 720px) {
|
||||
h1 {
|
||||
font-size: 32px;
|
||||
}
|
||||
|
||||
.form {
|
||||
grid-template-columns: 1fr;
|
||||
}
|
||||
|
||||
.result-header {
|
||||
align-items: flex-start;
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
.answer-main {
|
||||
align-items: flex-start;
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
.copy-button {
|
||||
width: 100%;
|
||||
}
|
||||
}
|
||||
.results-container {
|
||||
display: grid;
|
||||
gap: 18px;
|
||||
}
|
||||
|
||||
.result-group-title {
|
||||
color: var(--muted);
|
||||
font-size: 14px;
|
||||
font-weight: 700;
|
||||
margin: 8px 0 -6px;
|
||||
}
|
||||
|
||||
.dns-result-card {
|
||||
position: relative;
|
||||
z-index: 1;
|
||||
}
|
||||
|
||||
.source-badge {
|
||||
display: inline-block;
|
||||
margin-top: 8px;
|
||||
padding: 5px 9px;
|
||||
border-radius: 999px;
|
||||
background: var(--primary-soft);
|
||||
color: var(--primary);
|
||||
font-size: 12px;
|
||||
font-weight: 700;
|
||||
}
|
||||
.search-card {
|
||||
position: relative;
|
||||
z-index: 1000;
|
||||
}
|
||||
|
||||
.results-container {
|
||||
display: grid;
|
||||
gap: 18px;
|
||||
margin-top: 24px;
|
||||
position: relative;
|
||||
z-index: 1;
|
||||
}
|
||||
|
||||
.custom-select {
|
||||
position: relative;
|
||||
z-index: 2000;
|
||||
}
|
||||
|
||||
.select-menu {
|
||||
z-index: 3000;
|
||||
}
|
||||
|
||||
.result-group-title {
|
||||
color: var(--muted);
|
||||
font-size: 14px;
|
||||
font-weight: 700;
|
||||
margin: 8px 0 -6px;
|
||||
}
|
||||
|
||||
.dns-result-card {
|
||||
position: relative;
|
||||
z-index: 1;
|
||||
}
|
||||
|
||||
.source-badge {
|
||||
display: inline-block;
|
||||
margin-top: 8px;
|
||||
padding: 5px 9px;
|
||||
border-radius: 999px;
|
||||
background: var(--primary-soft);
|
||||
color: var(--primary);
|
||||
font-size: 12px;
|
||||
font-weight: 700;
|
||||
}
|
||||
.info-row {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
gap: 12px;
|
||||
margin-top: 16px;
|
||||
}
|
||||
|
||||
.info-row .meta {
|
||||
margin-top: 0;
|
||||
}
|
||||
|
||||
.user-ip {
|
||||
direction: ltr;
|
||||
text-align: right;
|
||||
font-family: Consolas, monospace;
|
||||
}
|
||||
|
||||
@media (max-width: 720px) {
|
||||
.info-row {
|
||||
align-items: flex-start;
|
||||
flex-direction: column; }
|
||||
|
||||
.user-ip {
|
||||
text-align: left;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,326 @@
|
||||
const express = require("express");
|
||||
const cors = require("cors");
|
||||
|
||||
const helmet = require("helmet");
|
||||
const rateLimit = require("express-rate-limit");
|
||||
|
||||
const app = express();
|
||||
const PORT = 4000;
|
||||
|
||||
app.disable("x-powered-by");
|
||||
|
||||
app.use(helmet({
|
||||
contentSecurityPolicy: {
|
||||
directives: {
|
||||
defaultSrc: ["'self'"],
|
||||
scriptSrc: ["'self'"],
|
||||
styleSrc: ["'self'"],
|
||||
imgSrc: ["'self'", "data:"],
|
||||
connectSrc: ["'self'"],
|
||||
objectSrc: ["'none'"],
|
||||
baseUri: ["'self'"],
|
||||
frameAncestors: ["'none'"]
|
||||
}
|
||||
}
|
||||
}));
|
||||
|
||||
app.use(cors());
|
||||
app.use(express.json({ limit: "10kb" }));
|
||||
app.use(express.static("public"));
|
||||
app.use(express.static("public"));
|
||||
app.set("trust proxy", true);
|
||||
|
||||
|
||||
|
||||
const apiLimiter = rateLimit({
|
||||
windowMs: 60 * 1000,
|
||||
max: 60,
|
||||
standardHeaders: true,
|
||||
legacyHeaders: false,
|
||||
message: {
|
||||
status: "error",
|
||||
error: "Too many requests. Please try again later."
|
||||
}
|
||||
});
|
||||
|
||||
app.use("/api/check", apiLimiter);
|
||||
|
||||
|
||||
|
||||
const agents = [
|
||||
{
|
||||
id: "iran-tehran-parsvds",
|
||||
sourceType: "owned",
|
||||
sourceLabel: "Our server",
|
||||
priority: 1,
|
||||
country: "Iran",
|
||||
city: "Tehran",
|
||||
datacenter: "Parsvds",
|
||||
flag: "IR",
|
||||
url: "http://127.0.0.1:3000"
|
||||
}
|
||||
];
|
||||
|
||||
const externalProviders = [
|
||||
{
|
||||
id: "google-public-dns",
|
||||
sourceType: "external",
|
||||
sourceLabel: "External check",
|
||||
priority: 100,
|
||||
country: "Global",
|
||||
city: "Google Public DNS",
|
||||
datacenter: "Google",
|
||||
flag: "GOOGLE",
|
||||
provider: "google-doh"
|
||||
}
|
||||
];
|
||||
|
||||
const ALLOWED_TYPES = ["A", "AAAA", "NS", "CNAME", "MX"];
|
||||
|
||||
function isValidDomain(domain) {
|
||||
if (!domain || typeof domain !== "string") return false;
|
||||
if (domain.length > 253) return false;
|
||||
if (domain.includes("..")) return false;
|
||||
if (domain.startsWith(".") || domain.endsWith(".")) return false;
|
||||
|
||||
return /^(?!-)([a-zA-Z0-9-]{1,63}\.)+[a-zA-Z]{2,63}$/.test(domain);
|
||||
}
|
||||
|
||||
function buildLocation(provider) {
|
||||
return {
|
||||
id: provider.id,
|
||||
sourceType: provider.sourceType,
|
||||
sourceLabel: provider.sourceLabel,
|
||||
priority: provider.priority,
|
||||
country: provider.country,
|
||||
city: provider.city,
|
||||
datacenter: provider.datacenter,
|
||||
flag: provider.flag
|
||||
};
|
||||
}
|
||||
|
||||
function dnsTypeToGoogleType(type) {
|
||||
const map = {
|
||||
A: 1,
|
||||
NS: 2,
|
||||
CNAME: 5,
|
||||
MX: 15,
|
||||
AAAA: 28
|
||||
};
|
||||
|
||||
return map[type] || type;
|
||||
}
|
||||
|
||||
function googleStatusToError(status) {
|
||||
const map = {
|
||||
1: "DNS query format error.",
|
||||
2: "Destination DNS server did not respond with a valid answer.",
|
||||
3: "Domain was not found.",
|
||||
4: "DNS request type is not supported.",
|
||||
5: "DNS request was refused."
|
||||
};
|
||||
|
||||
return map[status] || `DNS error status ${status}`;
|
||||
}
|
||||
|
||||
function parseGoogleAnswers(data, type) {
|
||||
if (!data.Answer || !Array.isArray(data.Answer)) {
|
||||
return [];
|
||||
}
|
||||
|
||||
const typeMap = {
|
||||
A: 1,
|
||||
NS: 2,
|
||||
CNAME: 5,
|
||||
MX: 15,
|
||||
AAAA: 28
|
||||
};
|
||||
|
||||
const wantedType = typeMap[type];
|
||||
|
||||
return data.Answer
|
||||
.filter(answer => answer.type === wantedType)
|
||||
.map(answer => {
|
||||
if (type === "MX") {
|
||||
const parts = String(answer.data).trim().split(/\s+/);
|
||||
return {
|
||||
priority: Number(parts[0]),
|
||||
exchange: parts.slice(1).join(" ").replace(/\.$/, "")
|
||||
};
|
||||
}
|
||||
|
||||
return String(answer.data).replace(/\.$/, "");
|
||||
});
|
||||
}
|
||||
|
||||
async function fetchJsonWithTimeout(url, timeoutMs = 4000) {
|
||||
const controller = new AbortController();
|
||||
const timeout = setTimeout(() => controller.abort(), timeoutMs);
|
||||
|
||||
try {
|
||||
const response = await fetch(url, {
|
||||
signal: controller.signal,
|
||||
headers: {
|
||||
accept: "application/json"
|
||||
}
|
||||
});
|
||||
|
||||
return await response.json();
|
||||
} finally {
|
||||
clearTimeout(timeout);
|
||||
}
|
||||
}
|
||||
|
||||
async function queryOwnedAgent(agent, domain, type) {
|
||||
const startTime = Date.now();
|
||||
|
||||
try {
|
||||
const url =
|
||||
`${agent.url}/resolve?domain=${encodeURIComponent(domain)}&type=${encodeURIComponent(type)}`;
|
||||
|
||||
const data = await fetchJsonWithTimeout(url, 8000);
|
||||
|
||||
return {
|
||||
location: buildLocation(agent),
|
||||
query: {
|
||||
domain,
|
||||
type
|
||||
},
|
||||
result: data.result,
|
||||
gatewayTimeMs: Date.now() - startTime
|
||||
};
|
||||
} catch (err) {
|
||||
return {
|
||||
location: buildLocation(agent),
|
||||
query: {
|
||||
domain,
|
||||
type
|
||||
},
|
||||
result: {
|
||||
status: "error",
|
||||
error: err.name === "AbortError" ? "Agent request timed out." : "Agent request failed.",
|
||||
answers: [],
|
||||
responseTimeMs: null
|
||||
},
|
||||
gatewayTimeMs: Date.now() - startTime
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
async function queryGoogleDns(provider, domain, type) {
|
||||
const startTime = Date.now();
|
||||
|
||||
try {
|
||||
const googleType = dnsTypeToGoogleType(type);
|
||||
const url =
|
||||
`https://dns.google/resolve?name=${encodeURIComponent(domain)}&type=${encodeURIComponent(googleType)}`;
|
||||
|
||||
const data = await fetchJsonWithTimeout(url, 5000);
|
||||
|
||||
const answers = parseGoogleAnswers(data, type);
|
||||
const success = data.Status === 0 && answers.length > 0;
|
||||
|
||||
return {
|
||||
location: buildLocation(provider),
|
||||
query: {
|
||||
domain,
|
||||
type
|
||||
},
|
||||
result: {
|
||||
status: success ? "success" : "error",
|
||||
error: success ? null : googleStatusToError(data.Status),
|
||||
answers,
|
||||
responseTimeMs: Date.now() - startTime
|
||||
},
|
||||
gatewayTimeMs: Date.now() - startTime
|
||||
};
|
||||
} catch (err) {
|
||||
return {
|
||||
location: buildLocation(provider),
|
||||
query: {
|
||||
domain,
|
||||
type
|
||||
},
|
||||
result: {
|
||||
status: "error",
|
||||
error: err.name === "AbortError" ? "External DNS request timed out." : "External DNS request failed.",
|
||||
answers: [],
|
||||
responseTimeMs: null
|
||||
},
|
||||
gatewayTimeMs: Date.now() - startTime
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
app.get("/api/client-ip", (req, res) => {
|
||||
const ip =
|
||||
req.headers["x-forwarded-for"]?.split(",")[0]?.trim() ||
|
||||
req.ip ||
|
||||
req.socket.remoteAddress ||
|
||||
"Unknown";
|
||||
|
||||
res.json({
|
||||
ip
|
||||
});
|
||||
});
|
||||
|
||||
|
||||
app.get("/api/locations", (req, res) => {
|
||||
res.json({
|
||||
locations: [...agents, ...externalProviders].map(provider => buildLocation(provider))
|
||||
});
|
||||
});
|
||||
|
||||
app.get("/api/check", async (req, res) => {
|
||||
const domain = String(req.query.domain || "").trim().toLowerCase();
|
||||
const type = String(req.query.type || "A").toUpperCase();
|
||||
|
||||
if (!domain) {
|
||||
return res.status(400).json({
|
||||
status: "error",
|
||||
error: "domain is required"
|
||||
});
|
||||
}
|
||||
|
||||
if (!isValidDomain(domain)) {
|
||||
return res.status(400).json({
|
||||
status: "error",
|
||||
error: "invalid domain"
|
||||
});
|
||||
}
|
||||
|
||||
if (!ALLOWED_TYPES.includes(type)) {
|
||||
return res.status(400).json({
|
||||
status: "error",
|
||||
error: "unsupported record type",
|
||||
allowedTypes: ALLOWED_TYPES
|
||||
});
|
||||
}
|
||||
|
||||
const ownedResults = await Promise.all(
|
||||
agents.map(agent => queryOwnedAgent(agent, domain, type))
|
||||
);
|
||||
|
||||
const externalResults = await Promise.all(
|
||||
externalProviders.map(provider => queryGoogleDns(provider, domain, type))
|
||||
);
|
||||
|
||||
const results = [...ownedResults, ...externalResults];
|
||||
|
||||
results.sort((a, b) => {
|
||||
return (a.location.priority || 999) - (b.location.priority || 999);
|
||||
});
|
||||
|
||||
res.json({
|
||||
status: "success",
|
||||
query: {
|
||||
domain,
|
||||
type
|
||||
},
|
||||
results
|
||||
});
|
||||
});
|
||||
|
||||
app.listen(PORT, "127.0.0.1", () => {
|
||||
console.log(`DNS Checker backend running on port ${PORT}`);
|
||||
});
|
||||
Reference in New Issue
Block a user