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Broken Link Checker

A guide to why broken links (404s) hurt SEO and user experience, plus a link to a real crawler that can scan your whole site, since checking every link's status requires fetching each one server-side — something this browser tool can't do.

How to Use Broken Link Checker
  1. 1Copy the page URL you want to check
  2. 2Paste it above for reference
  3. 3Run a real crawl with Screaming Frog, Sitebulb, or httpstatus.io for individual links
  4. 4Fix or redirect every link that returns a 404 or other error status
Frequently Asked Questions

No — checking whether hundreds of links return 200 or 404 means making an HTTP request per link, which a client-side tool can't do at scale. Use httpstatus.io for one-off checks or a full crawler for your whole site.

Run a crawl with Screaming Frog, Sitebulb, or Ahrefs Site Audit — all of them visit every internal and external link and report broken ones in bulk.

They waste crawl budget, create dead ends for users (raising bounce rate), and any link equity pointing at a 404 page is effectively lost.

Fix the link to point at the correct URL, or 301-redirect the missing page to its closest live replacement — don't just leave it 404ing.

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