Broken Links and SEO — How Dead Links Hurt Your Rankings
Broken links do more than frustrate visitors — they waste crawl budget, interrupt link equity, and signal to search engines that your site is not well maintained. Here is what you need to know.
Most website owners know that broken links are bad for visitors. What is less obvious is how much they affect search engine rankings. The impact is real, and on a website that has been online for a few years, unnoticed broken links can quietly drag down performance that would otherwise be much stronger.
How search engines use links
Search engines use links to decide which pages are worth ranking. A link from one page to another is essentially a vote of confidence — it tells Google that the destination is worth visiting. Internal links work the same way: they help Google understand which pages on your own site are important.
When a link points to a page that returns a 404, that vote goes nowhere. The page that contains the broken link is pointing at a dead end instead of supporting other content on your site.
Crawl budget
Google allocates a certain amount of crawling resources to each website — this is commonly referred to as crawl budget. On large websites, Google does not crawl every page on every visit. It prioritizes pages that appear valuable and well-maintained.
Broken links waste crawl budget. When Google follows a link and hits a 404, it has spent resources on a dead end instead of discovering or re-indexing useful content. A website with many broken links signals to Google that it is not well maintained, which can result in less frequent and less thorough crawling over time.
Internal vs external broken links
Not all broken links have the same impact on SEO.
Internal broken links — links from one page on your site to another page on your site that no longer exists — are the more damaging of the two. They directly interrupt the flow of authority through your own website, make pages harder to reach for crawlers, and create a poor experience for visitors who are already on your site.
External broken links — links from your site to other websites that no longer exist — are less damaging to your rankings directly, but they are still worth fixing. Linking to dead pages reflects poorly on the quality of your content. A page that links to several 404s on other websites looks outdated and unreliable, which is not the signal you want to send to either visitors or search engines.
The orphaned page problem
A related issue is orphaned pages — pages on your website that no internal links point to at all. If a page can only be reached by typing its URL directly, Google may rarely or never crawl it, and it will struggle to rank regardless of how good the content is.
Broken links can create orphaned pages indirectly. If a page was previously linked from several places and those links were removed or broke over time, the page may become effectively invisible to crawlers. Regular link audits catch this before it becomes a problem.
Link equity and 301 redirects
When a page moves to a new URL and a 301 redirect is set up, search engines transfer the ranking value of the old URL to the new one. This is why setting up redirects when restructuring a website is so important — without them, the ranking value built up over months or years simply disappears.
A broken internal link where the destination has moved but no redirect exists means that link equity is being lost. Fixing it — either by updating the link or setting up a redirect — recovers that value.
Practical impact
The exact weight Google gives to broken links as a ranking factor is not publicly documented, and Google rarely confirms specifics about its algorithm. What is well established is that Google values websites that are well-maintained, fast, and easy to crawl. Broken links work against all three signals.
For a website competing in a reasonably crowded niche, the difference between a site with zero broken links and one with fifty can be meaningful — not because of the broken links alone, but because they are a symptom of a site that has not been actively maintained. Search engines pick up on that pattern.
Keeping your website clean
The most practical approach is to scan your website regularly and fix broken links as they appear rather than letting them accumulate. External links in particular break without any action on your part — other websites go offline or restructure their content constantly.
dislike404.com scans your entire website automatically and reports every broken link it finds, including exactly which page it appears on. That makes it straightforward to work through the list and fix issues before they affect your rankings or your visitors.