Best Free Broken Link Checker Tools in 2026: 7 Tools Compared
Find broken internal links, dead external URLs, 404 errors, failed redirects and other link problems before they hurt your visitors and make your website harder to maintain.
What Is a Broken Link?
A broken link, sometimes called a dead link, is a hyperlink that no longer leads visitors to the intended working page.
Instead, the destination may return an error such as:
- 404 Not Found
- 410 Gone
- 500 Server Error
- An unavailable domain
- A failed redirect
- A connection or DNS error
Broken links can occur because a page was deleted, its URL changed, a website moved to another domain, or an external resource disappeared.
They can affect both internal links within your own website and external links pointing to other websites.
Best Free Broken Link Checkers: Quick Comparison
| Tool | Best For | Internal Links | External Links | Free Limit |
|---|---|---|---|---|
| Ahrefs Broken Link Checker | Fast web-based checks | Yes | Yes | Free checker |
| Screaming Frog | Technical site crawling | Yes | Yes | 500 URLs |
| BrokenLinkCheck.com | Large free browser scan | Yes | Yes | 3,000 pages |
| Dead Link Checker | Simple no-download checks | Yes | Yes | Free manual scans |
| W3C Link Checker | Open web standards tool | Yes | Yes | Free |
| Semrush Site Audit | SEO + broken link audit | Yes | Yes | 100 pages/month without SEO Toolkit |
| Ahrefs Site Audit | Ongoing website health | Yes | Yes | Up to 5,000 pages/month |
7 Best Free Broken Link Checker Tools in 2026
Ahrefs Broken Link Checker
Ahrefs provides a dedicated free Broken Link Checker for quickly checking a domain or URL.
The tool is designed to identify broken inbound and outbound links and uses Ahrefs’ large backlink database.
It is particularly useful when you want a fast check without installing desktop software.
Ahrefs also provides browser tools that can highlight links and help identify redirects or 404 responses directly while browsing.
✓ Dedicated broken link tool
✓ Internal and external research
✓ No desktop software
✓ Strong backlink database
✓ Useful for competitor research
✕ Full SEO data needs broader Ahrefs access
✕ Not a replacement for a complete site crawl
✕ Large-site reporting is better in Site Audit
Screaming Frog SEO Spider
Screaming Frog is one of the strongest options for performing a complete technical crawl of a smaller website.
Its free SEO Spider currently crawls up to 500 URLs per crawl.
After crawling your site, you can filter URLs by response code to find:
- 404 pages
- Other 4xx errors
- 5xx server errors
- Redirects
- Pages linking to failed URLs
Screaming Frog can also export broken links and the source pages containing those links.
✓ 500 URLs free
✓ Very detailed crawl
✓ Finds source pages
✓ Internal + external checks
✓ Professional SEO tool
✕ Desktop installation required
✕ Free crawl capped at 500 URLs
✕ More technical than simple online tools
BrokenLinkCheck.com
BrokenLinkCheck.com is one of the most generous simple browser-based broken link checkers.
Its free version currently supports up to 3,000 pages, with no stated limit on the number of hyperlinks contained within those pages.
It checks both internal and outbound URLs and can display where a bad link appears within the page’s HTML.
That makes it particularly attractive for websites that are larger than Screaming Frog’s free 500-URL crawl limit but whose owners do not want to install software.
✓ Up to 3,000 pages free
✓ No software installation
✓ Internal and external links
✓ Shows HTTP error codes
✓ Shows bad-link location
✕ Interface is basic
✕ Fewer SEO features than full audit suites
✕ Mainly focused on link checking
Dead Link Checker
Dead Link Checker offers a straightforward browser-based way to crawl a single page or an entire website for dead links.
Its free Site Checker can scan one website without requiring desktop software.
A free account also provides access to a Multi-Site Checker that can check multiple websites and email the resulting report.
Automated scheduled monitoring is available through paid plans, while manual website checks remain free.
✓ Free manual site checks
✓ Whole-site option
✓ Multi-site free account
✓ No download needed
✓ Easy for beginners
✕ Automated monitoring is paid
✕ Not a complete SEO audit suite
✕ Less advanced SEO analysis
W3C Link Checker
The World Wide Web Consortium provides a Link Checker as part of its collection of developer validators and tools.
It checks links contained within web documents and can help identify references that no longer resolve correctly.
W3C provides both an online version and command-line software.
It is particularly useful for developers who prefer a standards-focused open-source tool rather than a commercial SEO platform.
✓ Free
✓ Open source
✓ Online checker
✓ Command-line option
✓ From W3C
✕ Basic interface
✕ Fewer SEO recommendations
✕ Not designed as a complete marketing suite
Semrush Site Audit
Semrush Site Audit goes beyond simple dead-link checking by performing more than 140 technical and on-page SEO checks.
Broken links are included among the issues it can detect.
Accounts without the SEO Toolkit currently receive a crawl allowance of 100 pages per month, with a maximum of 100 pages in a single audit.
This makes it useful for small websites where you also want to check technical SEO issues beyond broken links.
✓ Broken-link checks
✓ 140+ SEO checks
✓ Easy dashboard
✓ Issue prioritization
✓ Good for smaller websites
✕ Free crawl is only 100 pages
✕ Large websites need paid access
✕ More than needed for a simple link check
Ahrefs Site Audit
Ahrefs Site Audit is better suited than a simple one-off link checker when you want to monitor a website you own.
Ahrefs Free currently supports up to 5,000 crawled pages per month per project.
Site Audit can flag pages linking to URLs returning 4xx or 5xx status codes and can separate internal and external broken outgoing links.
It can also identify 404 pages, redirect problems and many other technical SEO issues.
✓ Up to 5,000 pages/month
✓ Internal + external broken links
✓ Technical SEO audit
✓ Clear issue reports
✓ Good for ongoing monitoring
✕ Website verification needed for free project
✕ More complex than one-click checkers
✕ Broader competitor features may require paid access
Which Free Broken Link Checker Should You Use?
HTTP Status Codes You Should Understand
A broken-link checker normally identifies links whose destination returns failed HTTP responses or cannot be reached.
A 301 redirect is not automatically broken. However, unnecessary redirect chains can make link structures harder to maintain and may be worth cleaning up.
Internal vs External Broken Links
Broken internal links
An internal broken link points from one page on your website to another page on the same domain that is no longer available.
For example:
creatortoolly.com/old-seo-guide/
If the page no longer exists but other CreatorToolly pages still link to it, those internal links should be updated.
Broken external links
External broken links point from your website to another domain whose destination is no longer available.
External links can break without you changing anything because the other website may delete or move its page.
That is why older articles should occasionally be checked again.
Why Should You Fix Broken Links?
Better user experience
Visitors expect links to work. Repeatedly sending users to missing pages can make a website feel outdated or poorly maintained.
Cleaner internal navigation
Internal links help visitors and crawlers move between related pages. Dead ends make that structure less useful.
Preserve valuable backlinks
If an external website links to one of your deleted pages, that backlink may be pointing at a 404.
Depending on the situation, restoring the page or redirecting the old URL to the most relevant replacement can preserve the value and referral traffic associated with that link.
Keep old content maintained
Checking outbound links helps identify third-party resources that no longer exist.
How to Find and Fix Broken Links
Are All 404 Pages Bad for SEO?
No.
A 404 response is normal when a page genuinely no longer exists. Websites change over time and old pages are regularly removed.
The bigger concern is when important website links keep sending users and crawlers to those missing URLs.
Instead of trying to eliminate every 404 from your server, focus on:
- Broken internal links
- Important deleted pages with valuable backlinks
- Navigation pointing to missing pages
- Incorrect URLs in high-traffic content
- Broken links inside important guides
Should Every Broken URL Be Redirected?
No.
A redirect makes sense when there is a genuinely relevant replacement.
For example:
If:
/best-seo-tools-2025/
was replaced by:
/best-free-seo-tools/
a redirect may make sense if the new page truly replaces the old one.
But redirecting every unrelated deleted page to your homepage can confuse users and does not solve the underlying content problem.
How Often Should You Check for Broken Links?
For a small website, checking approximately once a month is generally a practical starting point.
You should also run another scan after:
- Deleting multiple pages
- Changing URL slugs
- Migrating your website
- Redesigning site navigation
- Publishing many new internal links
- Moving from HTTP to HTTPS
- Changing your domain structure
Large websites or frequently updated sites may benefit from more frequent automated crawling.
Our Recommended Free Broken Link Checking Stack
For most small website owners, you do not need to use all seven tools.
A practical free workflow is:
- Screaming Frog – detailed internal crawl
- Ahrefs Broken Link Checker – fast additional checks
- Ahrefs Site Audit – ongoing technical monitoring
- BrokenLinkCheck.com – browser-based second opinion
Using two different crawlers can occasionally uncover links that one tool did not detect because crawler settings and discovery methods can differ.
Build a Complete Free SEO Toolkit
Broken-link checking is only one part of website maintenance. Continue with these connected CreatorToolly SEO guides to improve technical health, backlinks, rankings and organic traffic.
Find indexing errors, broken pages, technical issues and website health problems.
Explore guide →Discover referring domains, broken backlinks and competitor link opportunities.
Explore guide →Monitor keyword positions and understand how your pages perform in Google Search.
Explore guide →Discover search demand, long-tail keywords, trends and new content opportunities.
Explore guide →Compare competitor traffic estimates and analyze visitor growth for your own website.
Explore guide →Explore our complete collection of free tools for growing organic search visibility.
Explore guide →Frequently Asked Questions
What is the best free broken link checker in 2026?
Ahrefs Broken Link Checker is excellent for quick browser-based checks. For a detailed technical crawl, Screaming Frog is one of the strongest options and currently allows up to 500 URLs in its free version.
Is Screaming Frog free for checking broken links?
Yes. Screaming Frog’s free SEO Spider can currently crawl up to 500 URLs and includes broken-link, error and redirect detection.
How many pages can BrokenLinkCheck.com scan for free?
Its current free version states a limit of 3,000 pages, while the number of hyperlinks contained inside those scanned pages is not subject to the same limit.
Is Ahrefs Broken Link Checker free?
Yes. Ahrefs currently provides a standalone free Broken Link Checker for checking broken inbound and outbound links.
Can Semrush find broken links?
Yes. Broken links are among the technical SEO issues checked by Semrush Site Audit. Accounts without the SEO Toolkit currently have a crawl allowance of 100 pages per month.
Does W3C have a broken link checker?
Yes. W3C provides a Link Checker that checks web documents for broken links. It is available as an online tool and as open-source software.
Should I redirect every 404 page?
No. Redirect a missing page when there is a genuinely relevant replacement. A legitimate removed page can simply remain unavailable when no appropriate replacement exists.
Are broken external links important to fix?
Yes. They can frustrate users and make older content feel poorly maintained. Replace the link with a relevant live source when possible or remove it if it is no longer useful.
How often should I scan my website for broken links?
For many small websites, a monthly check is a practical starting point. You should also scan after major URL changes, migrations or large content updates.
CreatorToolly Recommendation
For smaller websites, start with Screaming Frog because its free 500-URL crawl shows exactly where technical link problems exist. Use Ahrefs Broken Link Checker for fast additional checks and Ahrefs Site Audit when you want ongoing website-health monitoring. For a larger browser-only free scan, BrokenLinkCheck.com is particularly useful because its current free allowance covers up to 3,000 pages.