有利于各大搜索引擎SEO优化的404页面html
代码如下:
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 核心SEO配置:禁止搜索引擎收录、禁止追踪链接 -->
<meta name="robots" content="noindex, nofollow, noarchive">
<!-- 百度、搜狗、360 专项SEO适配 -->
<meta name="baidu-spider" content="noindex,nofollow">
<meta name="sogou-spider" content="noindex,nofollow">
<meta name="360-spider" content="noindex,nofollow">
<!-- 页面关键词与描述(SEO兜底优化) -->
<meta name="keywords" content="404页面,页面不存在,网站错误页面">
<meta name="description" content="您访问的页面不存在或已删除,返回网站首页浏览更多优质内容。">
<title>404-页面未找到 | 页面不存在</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: "Microsoft Yahei", PingFang SC, SimHei, sans-serif;
}
body {
width: 100%;
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
background-color: #f8f9fa;
color: #333;
}
.404-container {
text-align: center;
padding: 20px;
max-width: 600px;
width: 100%;
}
.404-code {
font-size: 120px;
font-weight: 700;
color: #2d8cf0;
line-height: 1.2;
margin-bottom: 20px;
}
.404-title {
font-size: 24px;
color: #333;
margin-bottom: 15px;
font-weight: 500;
}
.404-desc {
font-size: 16px;
color: #666;
line-height: 1.8;
margin-bottom: 30px;
}
.404-btn {
display: inline-block;
padding: 12px 30px;
background-color: #2d8cf0;
color: #fff;
text-decoration: none;
border-radius: 6px;
font-size: 16px;
transition: all 0.3s ease;
}
.404-btn:hover {
background-color: #1b76d8;
}
.404-tips {
margin-top: 25px;
font-size: 14px;
color: #999;
}
/* 移动端自适应优化 */
@media (max-width: 768px) {
.404-code {
font-size: 80px;
}
.404-title {
font-size: 20px;
}
.404-desc {
font-size: 15px;
}
}
</style>
</head>
<body>
<div class="404-container">
<div class="404-code">404</div>
<h1 class="404-title">抱歉!您访问的页面不存在</h1>
<p class="404-desc">可能是页面链接错误、内容已删除或暂时迁移,请勿担心,您可以返回首页继续浏览更多精彩内容。</p>
<a href="/" class="404-btn">返回网站首页</a>
<p class="404-tips">页面将在 <span id="time">5</span> 秒后自动跳转首页</p>
</div>
<script>
// 5秒自动跳转首页 SEO优化(不使用301/302跳转,保留404状态)
let timer = 5;
const timeDom = document.getElementById('time');
setInterval(() => {
timer--;
timeDom.innerText = timer;
if (timer <= 0) {
window.location.href = '/';
}
}, 1000);
</script>
</body>
</html>显示效果如下图:
