标签 内容 内容长度 优化建议
网页标题(Title) 升级维护中 5 个字符 标题字符数量在合理范围
网页关键词(KeyWords) 关键字,获取失败 0 个字符 关键字数在合理范围
内容描述(Description) 内容描述,获取失败 0 个字符 描述内容长度在合理范围
页面 http://www.jxvtc.edu.cn/default.html 检测结果
检测时间 2024-12-24 00:05:52
服务器IP 101.251.145.67
返回状态码 421
网页返回HEAD信息 HTTP/1.1 421 Bad RequestContent-Type: text/html
网页代码查看
<!DOCTYPE html>
<html lang="zh-CN">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>升级维护中</title>
	<style>
	    html, body {
	    	margin: 0;
	    	padding: 0;
	    	background: #f7f7f7;
	   	}
	   	.wrap{
	   		width: 100%;
	   		position: relative;
	   		margin: auto;
	   		text-align: center;
	   		margin-top: 6.5%;
	   	}
			.wrap img{
				max-width: 1000px;
			}
	   	.content{
	   		margin-top: -5%;
	   		margin-bottom: 43px;
	   	}
	   	.content p.title{
	   		font-size: 25px;
	   		color: #444;
	   	}
		.content .center{
			text-align: center;
		    color: #999;
		}
	   	.content .reason{
	   		font: 16px;
	   		color: #999;
	   		line-height: 12px;
	   		text-align: left;
	   		margin-left: 43%;
	   	}
	   	span.line{
	   		display: inline-block;
	   		content: "";
	   		
	   	}
	   	.footer{
	   		width: 55%;
	   		border-top: 2px solid #e3e3e3;
	   		margin: auto;
	   	}
	   	.footer p{
	   		font: 16px;
	   		color: #999;
	   		line-height: 15px;
	   		text-align: left;
	   		padding: 0 20px;
	   	}
		.footer p span{
			line-height:20px;
			white-space: normal; 
		}
     </style>
</head>
<body>
<div class="wrap" style="display: none;">
    	<img src="https://error.websaas.cn/img/421s.png" >
		<div class="content">
    		<p class="title">本网站正在升级维护中,由此带来的不便,敬请谅解</p>
    	</div>
		<div class="footer">
				<p style="text-align: center;">我是网站管理员,<span id="callBack" style="color: #1e80ff;cursor: pointer;">我要处理此异常</span></p>
			</div>
		</div>
<script src="https://custompages.websaas.cn/sha1.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
	let wrap = document.getElementsByClassName('wrap')[0]
	let host = window.location.href
	var demoFlag = false
	var imgFlag = false
	var timeOut = 2000
	function requestConfig() {
	    const xhr1 = new XMLHttpRequest()
	    xhr1.open('get','https://custompages.websaas.cn/7bef9456-a3a9-4306-a9ca-5cadc03f6879.js',true)
	    xhr1.setRequestHeader('XWD-Token', 'waduxawe124asdx');
	    xhr1.onreadystatechange = function(){
			if(xhr1.readyState == 4){
				demoFlag = true
				if((xhr1.status>=200&&xhr1.status<300)||xhr1.status==0){
					if(xhr1.responseText.length>0){
						eval(xhr1.responseText)
						if(jsonData[421].length == 0){
							showDefault()
						}else{
							for (let i = 0,num=0; i < jsonData[421].length; i++) {
							    const element = jsonData[421][i];
						        if(element['target']&&host.includes(element['host'])){
						            CheckStatus(element['target'])
						            xhr1.onreadystatechange = null;
									return
						        } 
						        if(jsonData[421].length-1 == num){
						            showDefault()
								}
								num++   
							}
						}
					}else{
						showDefault();
					}
				}else{
					showDefault();
				}
			}
	    }
	    xhr1.send()
		timeOutFn(xhr1)
	}
	requestConfig();
	
	function CheckStatus(target){
		let link = target
	    const xhr2 = new XMLHttpRequest()
	    xhr2.onreadystatechange = function() {
	            if (xhr2.readyState === 4) {
					imgFlag = true
	                if (xhr2.status === 200) {
	                    window.location.href = target
	                    xhr2.onreadystatechange = null;
	                } else {
	                    showDefault();
	                }
	            }
	    };
	    xhr2.open("HEAD",link,true)
	    xhr2.send()
		timeOutFn(xhr2,true)
	}
	function showDefault() {
		setTimeout(()=>{
			wrap.style.display='block'
		},500)
	   
	}
	function timeOutFn(xhr,second){
		if(demoTime){clearTimeout(demoTime)}
		var demoTime = setTimeout(()=>{
			if(!demoFlag||(second&&!imgFlag)){
				xhr.onreadystatechange = null;
				xhr.abort()
				showDefault()
			}
		},timeOut)
	}
</script>
<script src="https://custompages.websaas.cn/udesk.js"type="text/javascript" charset="utf-8"></script>
</body>
</html>

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