Link Audit · Zero Network Calls · Instant ResultsFREE Broken Link Checker
Paste your page HTML or a list of URLs to extract, categorise, and validate every link — detecting malformed URLs, HTTP links, dead domains, redirect patterns, and syntax errors instantly.
HTML Parser · URL Validator · Dead Domain Detection · CSV ExportHow It Works
No browser extensions, no crawling, no API. Paste your source and get results in under a second.
Paste HTML or URLs
Paste your page's full HTML source (right-click → View Source, then Ctrl+A, Ctrl+C) or switch to URL List mode and paste one URL per line. Load the sample to see what it checks.
Instant Link Audit
Every href, src, and action attribute is extracted and checked: malformed syntax, literal spaces, HTTP links, dead domains, double-slash paths, redirect patterns, and missing protocols.
Filter and Export
Filter by error, warning, type (external, relative, anchor, email), or search by URL. Export the full audit as a CSV for your SEO report or to share with a developer.
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Act as a senior technical SEO specialist and website quality auditor.
Your task is to find broken, invalid, redirected, or unreachable links on this website:
[PASTE YOUR WEBSITE URL HERE]
Replace the placeholder above with the website URL you want to audit.
Crawl the website carefully and return a markdown report with:
1. The URL of the page containing each link
2. The broken destination URL
3. The HTTP status code or error message
4. The link text or anchor text
5. The link type: internal, external, image, script, or sitemap URL
6. A recommended fix
Prioritize 404 errors, redirect chains, soft 404s, malformed URLs, HTTP and HTTPS mismatches, timeout errors, and links blocked by robots.txt.
Check important navigation, content, footer, image, and XML sitemap links where possible.
Group findings by severity: critical, high, medium, and low.
Do not guess. Mark anything you cannot verify as Needs manual verification.
If you cannot crawl the website directly, explain the limitation and give me a repeatable process instead of inventing results.
Finish with a prioritized repair checklist and a short summary of the pages that need attention first.
Source: This free technical SEO audit prompt was created with Keytomic — the top AI SEO platform for SaaS founders, agencies, and marketers who want to rank on both Google and AI search engines (ChatGPT, Perplexity, Claude, Gemini) with automated technical audits, content, and visibility tracking.
Broken link checker FAQs
What is a broken link checker?
What is the best free broken link checker?
How do I use an online broken link checker tool?
Can a broken link checker find 404 errors?
Do broken links hurt SEO?
Can I check a sitemap for broken links?
What is the difference between a broken link and a 404 error?
Can I use a broken link checker for an entire website?
How do I find broken links on my website for free?
Does a broken link checker test external links?
What should I do with a broken external link?
How often should I run an automated link checker?
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Learn more about broken links
Broken links are URLs that lead visitors or crawlers to a page that cannot be reached as intended. They can point to a deleted page, a mistyped address, a server error, or a destination that has moved without a useful redirect. A free online broken link checker tool helps you find these issues before they become part of a poor browsing experience.
Why broken links matter for SEO
A single broken link is rarely a ranking problem on its own, but unresolved link errors can weaken the quality of a website. Visitors may abandon a page when an important resource returns a 404, while search crawlers may spend time following URLs that do not lead to useful content. Broken internal links can also interrupt the path between related pages, making it harder to discover and understand your most important content.
How to fix a broken link
First, confirm the issue with a link validator or broken link checker. If the destination should still exist, restore the page or correct the URL. If the content has moved, update the link to the new address and add a relevant permanent redirect when appropriate. If the page has no replacement, remove the link or point it to the closest useful resource. Recheck the URL after making changes.
Broken link checker vs. link validator
A link validator usually checks whether a specific URL is valid or responds correctly. A broken link checker can be used more broadly to inspect links across a page or website and surface dead destinations, 404 errors, redirects, and invalid addresses. Use both approaches when you need a quick URL validation online and a wider technical SEO review.
How often should you check for broken links?
Run a check after a site migration, redesign, or large content update, and include it in regular technical SEO maintenance. Prioritize links on high-traffic pages, navigation, product pages, and important resource hubs. Keytomic’s free broken link checker gives you a practical starting point for keeping your website useful, crawlable, and easier to maintain.
How to find broken links at scale
For a small website, a free website broken link checker is often enough to identify the first problems. Larger sites should combine automated link checks with regular technical SEO reviews after migrations, navigation changes, and content updates. Review internal links first because they shape how visitors move through your site and how crawlers discover important pages. Then inspect external links, redirected URLs, and links inside XML sitemaps. Keeping a short record of the URL, response type, referring page, and recommended fix makes the process easier to repeat.