🔗 Broken Link Checker

🔍 Extract every <a href> on the page and probe each one in parallel. We report status codes, redirects, broken targets, and SEO-relevant attributes (rel, nofollow, target). We check up to 100 unique HTTP links per page.

Link Crawlability & Anchor Equity Architecture

Hyperlinks (<a href>) represent the primary topological connective tissue of the World Wide Web. Search engines traverse links to discover new URLs, compute PageRank graph authority, and understand topical relationships through anchor text semantics.

Link Qualification Attributes (rel)

Under Google Search Central guidelines and W3C HTML specifications, outbound hyperlinks should be qualified with standard rel attribute values:

  • rel="nofollow": Directs search crawlers not to associate your site's PageRank or endorsement with the target destination.
  • rel="sponsored": Required for paid advertisements, affiliate links, and commercial sponsorships to avoid link scheme penalties.
  • rel="ugc": Recommended for User Generated Content (comments, forum posts, profile links) to protect against comment spam abuse.
<a href="https://example.com/affiliate" rel="sponsored nofollow" target="_blank">Partner Resource</a>

Internal vs. External Link Equity Distribution

1. Internal Links

Internal links establish your site's architectural hierarchy and distribute authority from high-equity pages (such as your homepage) to deeper topic clusters. Broken internal links (returning 404 or 500 status codes) result in dead ends for crawlers and dilute internal equity.

2. External Links & Trust Signals

Linking out to reputable, authoritative industry sources and research studies provides positive contextual signals for topic verification. However, linking to dead external resources or spam-expired domains degrades site quality.

Remediating Broken Links

When broken links are identified:

  • Internal 404s: Update the anchor href directly to the revised URL path, or configure a 301 Moved Permanently redirect using our Redirect Checker.
  • External 404s: Locate the updated documentation or remove the hyperlink while preserving the attribution text.
  • Redirect Chains on Links: Point internal anchors directly to the final canonical URL to bypass intermediate redirect latency.

Frequently Asked Questions

Why does the checker probe links with HEAD requests?

HEAD requests retrieve only the HTTP status code and response headers without downloading the full page payload. This allows probing dozens of links concurrently in milliseconds with minimal server overhead.

Do broken external links hurt my search rankings?

While an occasional broken external link is normal as websites move content, pages containing numerous dead links signal to search engines that content is unmaintained and obsolete.

Should I add nofollow to all external links?

No. Google encourages natural editorial citations without nofollow. Reserve nofollow, sponsored, or ugc for unvetted user links, sponsored placements, and paid endorsements.