URL: /rules/links --- title: "Links" description: "Internal and external link health and structure" --- Internal and external link health and structure ## Rules Checks for empty or generic anchor text Detects external links returning 4xx/5xx errors or timeouts Detects links returning 404 or 5xx errors Verifies external links through the cloud service with a shared global cache Pages with no outgoing internal links, potentially trapping users Reports on external link count Detects links from HTTPS pages to HTTP destinations Validates internal link count Detects invalid link formats on the page Flags internal links with rel=nofollow Detects pages with no internal links pointing to them Detects URLs that redirect and links pointing to redirects Validates tel: and mailto: link formats Detects pages with only 1 dofollow internal link pointing to them ## Disable All Links Rules ```toml squirrel.toml [rules] disable = ["links/*"] ```