What is a Dead Link? Definition & How to Fix

Definition

A dead link is a hyperlink that points to a web page or resource that no longer exists. When a user or search engine crawler follows a dead link, the server returns a 404 Not Found error instead of the expected content. The term is a synonym for "broken link" and is commonly used in SEO and webmaster contexts.

While "broken link" is the broader term covering any link that fails (404s, timeouts, DNS errors), "dead link" specifically emphasizes that the target resource is gone — it no longer exists at that URL.

Dead links vs. broken links

The terms are often used interchangeably, but there is a subtle distinction:

• Dead link — typically refers to a link whose target page has been permanently removed or deleted, resulting in a 404 error.
• Broken link — a broader term that includes dead links but also covers links that fail due to server errors (500), timeouts, DNS failures, or malformed URLs.
• In practice — most SEO tools and professionals use both terms to mean the same thing: a link that does not work.

Common causes of dead links

• Page deletion — content is removed without setting up a 301 redirect.
• URL restructuring — site redesigns change URL patterns, breaking existing links.
• Domain expiration — the target website's domain is no longer registered.
• CMS changes — switching platforms or updating permalink structures.
• External site changes — third-party websites you link to remove or reorganize their content.

SEO impact of dead links

Dead links waste crawl budget as search engines follow links to non-existent pages. They also break the flow of link equity through your site's internal linking structure, and create a poor user experience that increases bounce rates.

Google has stated that a few dead links won't significantly hurt your rankings, but a large number signals poor site maintenance. Regular monitoring prevents dead links from accumulating to harmful levels.

How to find and fix dead links

1. Scan your site — use a broken link checker to crawl your entire website and identify every dead link.
2. Set up redirects — for pages that have moved, create 301 redirects to the new location.
3. Update or remove links — fix the link to point to a working page, or remove the link entirely if no replacement exists.
4. Monitor continuously — new dead links appear over time as link rot sets in. Automated monitoring catches them early.

Dead links are inevitable on any website, but they don't have to stay broken. Run a free scan to find every dead link on your site today.