失效链接检查工具

检查一个页面上的所有链接，查找失效的状态码（4xx、5xx）。每次扫描分析至多30个链接。

如何使用本工具

1
Paste the full URL of the page you want to check (for example https://example.com/blog) into the input field.
2
Click Analyze and wait while the server fetches the page and probes each link it finds.
3
Read the two tallies at the top: Checked (how many links were probed) and Broken (how many failed).
4
Scan the per-link list below, where each broken link is highlighted in red with its HTTP status code or error reason.

失效链接会损害用户体验和SEO。搜索引擎会抓取每一个链接；持续存在的404错误会浪费抓取预算，并暗示网站已被弃管。本工具会并发检查一个页面上的前30个链接，并报告任何状态码失效的链接。对于全站抓取，请使用Screaming Frog或Sitebulb。

Verifying a new blog post or landing page before publishing, so no outbound reference 404s on launch day.
Spot-checking a high-traffic page after a site migration, where redirects and moved pages often leave dangling links.
Auditing a resources or links roundup page where external sites you cited may have quietly disappeared.
Confirming that internal navigation and footer links still resolve after a CMS template change.
Checking a documentation page for dead links to external API references or download mirrors.
Quickly validating a competitor or client page during an SEO review without installing a desktop crawler.

我应该多久检查一次？▼

稳定的网站每季度一次；外部链接不断累积的活跃网站每月一次。

指向付费墙内容的链接呢？▼

它们往往会返回200（登录页面）：属于误报。需要进行人工核查。