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Utilnivo

SEO & Webmaster

Free Broken Link Checker

  • Browser-based
  • No signup

Use this free broken link checker to validate hrefs on marketing pages, docs, and resource lists bloggers link to. Identify 404 and 5xx responses before visitors or search crawlers hit them.

Pair with Redirect Checker when you replace URLs to ensure 301s land on correct targets.

100% Client-Side

Your data never leaves your computer.

How to use this tool

Paste page URL, start scan, export or note failing URLs, update links or add redirects.

Worked example

Example: resource page with 40 outbound links—two partners changed URLs without redirects.

When to use this

  • Blog maintenance.
  • Partner resource page updates.
  • Documentation refresh sprints.

Common examples

  • Blog post HTML → flags `/old-pricing` returning 404 in the footer.
  • Resource page with 15 outbound links → surfaces two 403 partner URLs blocked to bots.
  • Post-migration homepage → confirms `/docs/getting-started` redirects but `/docs/api` is 404.
  • Email newsletter archive paste → finds `http://` mixed-content links that fail on HTTPS site.
  • Affiliate page QA → catches truncated URL missing trailing slash before publish.
  • Internal wiki export → lists broken image `src` paths still pointing at retired CDN host.

What people search for

  • broken link checker
  • dead link checker
  • check broken links on website
  • website link checker free
  • seo broken link audit

Common mistakes

  • Checking once after launch only.
  • Treating 403 as success.
  • Not rechecking after CDN changes.

Related long-tail tasks

  • check external links
  • http status checker
  • heading structure audit

How it works

Extract links from HTML or a fetched page, then send HEAD requests to check HTTP status codes. Broken or unreachable links are listed in a results table.

Limitations

Checks up to 20 unique URLs per run. Cross-origin pages may block HEAD requests from the browser (CORS), so paste HTML when live fetch fails. Status codes reflect what your browser can reach—not a server-side crawl.

Privacy and file handling

Your data is processed in your browser and is not uploaded to our server.

Important notice

Link checks run from your browser and may be blocked by CORS or rate limits. Only the first 20 unique URLs are tested per run.

Related Broken Link Checker guides

These pages use the same broken link checker with guides tailored to specific search intents.

Frequently asked questions

Same as W3C link checker?

Similar goal—browser-based convenience for quick scans.

JavaScript links?

Some JS-generated hrefs may require rendered crawl—verify manually if missed.

Schedule scans?

Re-run after major content or domain changes.

Related tools

Related pages

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