Broken external link (4xx/5xx): what it is, why it matters, and how to fix it

This page contains a link to an external domain that returns a 4xx or 5xx HTTP status code. The external resource is no longer available.

Broken external links hurt user experience and may signal to search engines that the page is not well-maintained. While linking to relevant external resources can boost perceived quality, linking to dead pages has the opposite effect. Google's quality rater guidelines specifically look for broken links as a sign of low-quality pages.

Find an updated URL for the external resource (check the Wayback Machine for archived versions), replace the link with a similar working resource, or remove the link if no suitable alternative exists. Consider using a link monitoring tool to catch external link rot early.

This is a medium-severity issue: individually modest, but it compounds — dozens of medium issues across hundreds of pages add up to a real quality deficit in how search engines assess the site. It belongs to the internal_links family of checks.

Run a free Dr Urls audit: it crawls your site, detects broken external link (4xx/5xx) on every affected page, shows example URLs, and generates a ready-to-use fix task. Re-scan after fixing to verify the issue is gone.