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dns.html
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dns.html
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<!-- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd"> -->
<html lang="en" dir="ltr">
<!--
Specifying the doctype DTD URL causes IE to render in standards mode.
See http://msdn.microsoft.com/en-us/library/ms535242.aspx
-->
<head>
<title>DNS 测速</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="description" content="This site allows you to perform an HTTP ping to measure the network latency from your browser to the various Amazon Web Services™ datacenters around the world.">
<link rel="stylesheet" href="style-v=2.css" type="text/css">
<style type="text/css">
#pinger tr td span {
min-width: 100px;
display: inline-block;
}
</style>
<!-- <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<script>
(adsbygoogle = window.adsbygoogle || []).push({
google_ad_client: "ca-pub-2646647685096501",
enable_page_level_ads: true
});
</script> -->
<!-- <script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-21822306-2']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script> -->
</head>
<body>
<div id=page>
<div id=title>
<h1>DNS 测速</h1>
</div>
<div id=content>
<p>各个DSN 提供测试连接速度， 按照2018年dns排名排序 <a href="https://jingyan.baidu.com/article/6dad50753e6031a123e36e1f.html">2018公共DNS服务器地址评估—DNS推荐</a> ， 不同地区不同网络 最快的 DNS都可能不太一样(部分服务商可能不支持HTTP ping ,会显示连接失败,后续在优化 )</p>
<table id="pinger">
<tr>
<th>DNS 名称</th>
<th>ip</th>
</tr>
<tr>
<td><span>DNSPod DNS</span> (首选：119.29.29.29)</td>
<td class='latency' id='us-east-1' endpoint='119.29.29.29'> </td>
</tr>
<tr>
<td><span>DNSPod</span> (备选：182.254.116.116)</td>
<td class='latency' id='us-east-2' endpoint='182.254.116.116'> </td>
</tr>
<tr>
<td><span>114DNS</span> (首选：114.114.114.114)</td>
<td class='latency' id='us-west-1' endpoint='114.114.114.114'> </td>
</tr>
<tr>
<td><span>114DNS</span> (备选：114.114.114.115)</td>
<td class='latency' id='us-west-2' endpoint='114.114.114.115'> </td>
</tr>
<tr>
<td><span>百度 DNS</span> (首选：180.76.76.76)</td>
<td class='latency' id='ca-central-1' endpoint='180.76.76.76'> </td>
</tr>
<tr>
<td><span>百度 DNS</span> (备选：无)</td>
<!-- <td class='latency' id='ca-central-1' endpoint=''> </td> -->
</tr>
<tr>
<td><span>阿里 DNS</span> (首选：223.5.5.5)</td>
<td class='latency' id='eu-west-1' endpoint='223.5.5.5'> </td>
</tr>
<tr>
<td><span>阿里 DNS</span> (备选：223.6.6.6)</td>
<td class='latency' id='eu-west-2' endpoint='223.6.6.6'> </td>
</tr>
<tr>
<td><span>CNNIC SDNS</span> (首选：1.2.4.8)</td>
<td class='latency' id='eu-central-1' endpoint='1.2.4.8'> </td>
</tr>
<tr>
<td><span>CNNIC SDNS</span> (备选：202.98.0.68)</td>
<td class='latency' id='eu-west-3' endpoint='202.98.0.68'> </td>
</tr>
<tr>
<td><span>DNS派</span> (首选：101.226.4.6)</td>
<td class='latency' id='eu-north-1' endpoint='101.226.4.6'> </td>
</tr>
<tr>
<td><span>DNS派</span> (备选：218.30.118.6)</td>
<td class='latency' id='ap-south-1' endpoint='218.30.118.6'> </td>
</tr>
<tr>
<td><span>OpenDNS</span> (首选：208.67.222.222)</td>
<td class='latency' id='eu-north-1' endpoint='101.226.4.6'> </td>
</tr>
<tr>
<td><span>OpenDNS</span> (备选：208.67.220.220)</td>
<td class='latency' id='ap-south-1' endpoint='218.30.118.6'> </td>
</tr>
<tr>
<td><span>Google DNS</span> (首选：8.8.8.8)</td>
<td class='latency' id='eu-north-1' endpoint='8.8.8.8'> </td>
</tr>
<tr>
<td><span>Google DNS</span> (备选：8.8.4.4)</td>
<td class='latency' id='ap-south-1' endpoint='8.8.4.4'> </td>
</tr>
<tr>
<td id='imageCell'></td>
<td><input type='submit' id='pingbutton' value=" HTTP Ping "></td>
</tr>
</table>
<p>Lewei Li<br>
<a href="mailto:[email protected]">[email protected]</a></p>
<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
<script type="text/javascript">
var pingButton = $("#pingbutton");
function disablePingButton() {
pingButton.attr("disabled", "disabled");
};
function enablePingButton() {
pingButton.removeAttr("disabled");
};
// http://stackoverflow.com/questions/1403888/get-url-parameter-with-jquery
function getURLParameter(name) {
var regex = new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)');
var matches = regex.exec(location.search);
if (matches == null) {
return null;
}
var value = matches[1];
var value = value.replace(/\+/g, '%20');
return decodeURIComponent(value);
}
$(document).ready(function() {
$("#pingbutton").click(pingButtonClicked);
if (getURLParameter("run")) {
$("#pingbutton").click();
}
});
function pingButtonClicked() {
disablePingButton();
var latencyBoxes = $(".latency").toArray();
latencyBoxes.reverse();
doNextBox(latencyBoxes);
}
function doNextBox(latencyBoxes) {
var box = latencyBoxes.pop();
if (box) {
var region = box.id;
var endpoint = box.getAttribute("endpoint");
step1_connect(box, region, endpoint, latencyBoxes);
} else {
enablePingButton();
}
}
var timer = null;
var imageCell = $("#imageCell")
function ping_endpoint(endpoint, onComplete) {
var randomString = Math.floor(Math.random()*0xFFFFFFFFFFFFFFFF).toString(36);
var targetUrl = 'http://'+ endpoint + "/ping?x=" + randomString;
// var targetUrl = endpoint + "/ping?x=" + randomString;
imageCell.empty();
imageCell.html("<img id='pingImage' style='display: none'>");
var pingImage = $("#pingImage");
pingImage.error(onComplete);
pingImage.attr("src", targetUrl);
clearTimeout(timer);
timer = setTimeout(function() {
pingImage.attr("src", '');
onComplete();
}, 2001)
}
function step1_connect(box, region, endpoint, latencyBoxes) {
$(box).html("connecting");
var step1 = false;
ping_endpoint(endpoint, function() {
step2_ping(box, region, endpoint, latencyBoxes);
});
}
function currentTimeMillis() {
return (new Date()).getTime();
}
function step2_ping(box, region, endpoint, latencyBoxes) {
$(box).html("pinging");
var startTime = currentTimeMillis();
ping_endpoint(endpoint, function() { step3_finish(startTime, box, region, endpoint, latencyBoxes); });
}
function step3_finish(startTime, box, region, endpoint, latencyBoxes) {
var endTime = currentTimeMillis();
var elapsed = endTime - startTime;
var resultText = elapsed.toString() + " ms";
if(elapsed > 2000) {
resultText = '连接失败，超过2s'
}
$(box).html(resultText);
doNextBox(latencyBoxes);
}
</script>
</div>
<div id="footer">
<p>Copyright © 2019-2019 Lewei Li</p>
</div>
<div id=legalese>
</div>
</body>