Technical
Why dead links quietly cost you rankings
Table of Contents
show
A broken link is not just an inconvenience. It wastes the crawl budget that should be reaching your good pages, strands the authority flowing through your site, and tells visitors nobody is minding the shop.
Definitions
What counts as a dead link
A hyperlink pointing at a page that no longer exists. It returns a 404, times out, or loops endlessly. Usually created by accident and almost never noticed.
- Deleted or renamed pagesThe most common cause. A page gets tidied away and nothing updates the links pointing at it.
- Changed URL structuresA rebuild or migration where the redirect map missed something.
- External links that diedYou linked to someone else’s page and they removed it. Nothing you did wrong, still your problem.
- Badly configured redirectsA redirect pointing at another redirect, or at a page that has since gone.
The early warning is usually behavioural rather than technical: visitors bouncing, rankings drifting for no obvious reason, and Search Console reporting pages it crawled but did not index.
Not the same thing
Dead links against broken pages
Both damage SEO, and people use the terms interchangeably, but they are different problems with different fixes.
| Dead link | Broken page | |
|---|---|---|
| What it is | A link pointing at a URL that does not exist | A page that exists but fails to load |
| Error code | 404 or 410 | 500, 503, or a blank page |
| SEO impact | Loss of link equity | Crawling failures and poor experience |
| How to fix | Redirect it or replace the link | Fix the hosting, script or CMS problem |
| Where you find them | Blogs, footers, resource pages | Dynamic content, plugin-heavy pages |
The damage
What broken links actually cost
Four separate effects, and they compound.
- Wasted crawl budgetGoogle allocates finite crawling to your site. Every dead link it follows is a real page it did not index instead.
- Stranded link equityAuthority flows through internal links. A link to a dead page is a dead end — you earned that authority and it goes nowhere.
- Visitors who leaveSomeone hitting a 404 goes back to the results. If they arrived from a search, that return journey is a signal Google acts on.
- Eroded trustA site full of dead links reads as abandoned. For a service business trading on reliability, that impression costs enquiries you never hear about.
Fixing it
The process
- 1 · Crawl the whole siteNot just the pages you remember. Use one of the tools below, or our free broken link checker.
- 2 · List internal and external separatelyThey need different treatment. Internal ones you control; external ones you can only remove or replace.
- 3 · Redirect internal dead links with 301sTo the closest genuinely relevant page. Not the homepage — Google treats a mass redirect to the homepage as a soft 404 and ignores it.
- 4 · Update or remove external onesFind the new URL if the content moved. Delete the link if it did not.
- 5 · Test your navigation and buttonsMenu items and calls to action are the worst place to have a dead link, and the place people check least.
- 6 · Schedule a monthly checkLinks break continuously. A crawl once a year finds a year’s worth of damage.
Watch for redirect chains while you are in there. A link pointing at a redirect that points at another redirect loses a little signal at each hop, and chains are almost always accidental.
Tools
What to use
Finding broken links used to be a forensic job. It is now free and takes minutes.
| Tool | Best for | Free? |
|---|---|---|
| Screaming Frog | A deep crawl of up to 500 URLs | Yes, up to 500 |
| Ahrefs Site Audit | Full SEO breakdown including link errors | No |
| Google Search Console | Official crawl error monitoring, straight from Google | Yes |
| Our broken link checker | A quick scan with no signup or install | Yes |
Search Console is the one most people already have and never look at. Its Pages report tells you exactly which URLs Google crawled and refused to index, which answers most of this without installing anything.
Keeping on top of it
Prevention is a ten-minute job
- Redirect rather than deleteWhen you remove a page, 301 it to the closest relevant one. It takes thirty seconds at the time and saves finding it later.
- Update old posts when you rename thingsIf a service page changes URL, search your own content for the old one.
- Check the footer and navigation firstA dead link there appears on every page of the site. One fix, hundreds of links.
- Run a crawl monthlyNot annually. Links break as other people’s sites change, which happens constantly.
Common questions
Frequently asked
- How much do dead links affect SEO?Less dramatically than some guides claim, but the effects are real and cumulative — crawl waste, lost equity, and user signals. A handful matter little. Hundreds matter.
- What is a soft 404?A page that technically loads but tells Google there is nothing there. Google treats it as a dead link and it can still hurt. Mass-redirecting old pages to your homepage creates them.
- Can I fix these myself?Usually, yes. Most content management systems allow straightforward link editing and redirect setup. It is more tedious than difficult.
- How often should I check?Every 30 to 60 days, and more often if you publish regularly or update pages a lot.
- Does Google penalise broken links?Not as a formal penalty. They affect crawling, indexing and user behaviour, which then affect rankings — the outcome is similar, the mechanism is different.
Want us to run the crawl?
The free audit includes a full-site link check alongside content, local signals and tracking — and tells you which findings actually matter for your site.