Free Outbound Link Checker

An outbound link (also called an external link) is a hyperlink from your page to a different domain. If example.com links to wikipedia.org, that's an outbound link. Outbound links are the opposite of internal links (same-domain) and different from backlinks (which are pages linking TO you). Every outbound link passes a small amount of link equity to the destination unless you mark it rel="nofollow" or similar.

Outbound links to authoritative, topically relevant sources boost your page's credibility and can improve rankings. Google's algorithm treats well-referenced content as higher quality. However, too many outbound links (especially to low-quality or irrelevant sites), broken external links, or links to spam sites will hurt rankings. Aim for a balance: 2-5 high-quality outbound links per 1,000 words of content is a healthy ratio.

Linkrot is when outbound links on your pages become broken over time because the destination site was moved, deleted, or went offline. Studies show roughly 10-15% of external links break within a year, and 50% within 10 years. Broken outbound links hurt user experience (dead ends), waste crawl budget, and signal to Google that your content isn't maintained. Audit outbound links quarterly and replace or remove dead ones.

These rel attributes tell Google how to treat the outbound link. rel="nofollow" tells crawlers not to pass link equity (use for untrusted links). rel="sponsored" marks paid or affiliate links, required by Google since 2019 to disclose paid placements. rel="ugc" marks User Generated Content (forum posts, comments). You can combine: rel="nofollow ugc" for forum comment links. Unmarked (dofollow) links pass full equity, use these for editorial references.

Yes, outbound links to authoritative sources are a trust signal to Google and users. Wikipedia, government sites, major publications, and topic-relevant experts improve your content's credibility. Avoid: pages with low authority, irrelevant topics, spam or ad-farm sites, paywalled content, or anything that might redirect users away permanently. A good rule: link outbound when the reference genuinely helps the reader.

There's no hard cap, but Google has historically recommended keeping outbound links to a "reasonable number", typically under 100 per page. Beyond that, individual links start passing minimal link equity. For SEO-focused pages (blog posts, guides), aim for 2-5 outbound links per 1,000 words pointing to high-authority references. Excessive outbound linking can look spammy and trigger manual review.

When you open a link with target="_blank" (new tab), the new page can use JavaScript's window.opener to modify your original page, a vulnerability called "tabnabbing" where a malicious site can redirect your tab to a phishing page. Adding rel="noopener" (or noreferrer) breaks this window.opener reference. Modern browsers now default to noopener on target="_blank", but older codebases and email clients may still be vulnerable. Our checker flags every unprotected target="_blank".

Four options in order of preference: (1) Replace, find a live alternative on the same topic, ideally from the same author or publisher. (2) Archive, swap the dead URL for a Wayback Machine snapshot (web.archive.org/web/*/original-url). (3) Remove, delete the link entirely if no replacement exists. (4) Redirect, if the destination now redirects elsewhere, update to the final URL. Re-run this tool monthly to catch new linkrot before users do.

Yes, if they point to low-quality sites. Google's algorithm evaluates the "neighborhood" your content links to, pages that link heavily to spam, PBNs (private blog networks), or penalized sites get treated as complicit. Stick to authoritative sources. If you find yourself linking to a site that has since turned into spam (domain expired and re-registered), use this tool to find and remove those links.

Yes, both legally and for SEO. The FTC requires clear disclosure of material connections (paid partnerships, affiliate links, sponsored content). Google requires rel="sponsored" on paid links since 2019; violation risks manual penalties. Visible on-page disclosure ("affiliate link" text) plus rel="sponsored" in the HTML is the safest combo. Our tool flags every sponsored/ugc rel attribute so you can verify coverage.

Descriptive and topical. "According to Smashing Magazine's guide on CSS Grid" is better than "click here" or the raw URL. Google uses outbound anchor text to understand what the destination page is about and to evaluate your content's topical authority. Avoid generic phrases ("read more", "link"), over-optimized exact-match anchors (suggests manipulation), and repeated identical anchors (suggests automation).

No. All link extraction happens in a stateless API route that never logs or persists URLs. Your source URL is fetched once, parsed for outbound links, and the result is returned, nothing is stored on our servers. The optional history feature saves results to your browser's localStorage only. Safe to audit private staging sites, unreleased pages, or anything confidential.