Internal and external link health

Healthy links keep users on working URLs and avoid unnecessary redirect hops. We surface broken internal and external links (from sampled requests), external links that redirect, and—on eligible long-form pages—cases with no internal links at all.

What we look for

• Broken internal links — sampled internal hrefs whose targets return error statuses.
• Broken external links — sampled external hrefs that fail.
• Redirecting external links — outbound links that chain through redirects.
• No internal links — body content passes a length gate but no internal links were found in HTML.

What to do

Update or remove broken hrefs. Point external links to final URLs when stable. Add relevant internal links so important pages connect within your site graph.

Technical details

Link checks use bounded sampling and stored crawl results—see How the crawler works.