Broken Link Checker
Scan up to 3,000 standard links on any webpage for free. Checks HTML text links only. File/media assets require an Enterprise plan.
Standard scan checks up to 3,000 HTML links per session from any public URL.
Live Stats
Need more power?
- → Unlimited links per crawl
- → Asset & media link checks
- → JS/SPA headless rendering
- → Auto-Fix Git PR generation
- → CSV/PDF export reports
- → Rotating proxy pools
Integrate via API
Run link checks programmatically inside CI/CD pipelines, staging deployments, and content workflows. Free tier: 300 link checks/day.
Get Free API Key →What is Broken Link Checker?
The Broken Link Checker is a free online quality assurance tool designed to scan text, files, and web pages for invalid or unreachable URLs. Built for webmasters, digital marketers, and compliance teams, it verifies link health before publication to maintain user trust.
Unlike traditional link scrapers that execute slowly, this tool streams check results live to your browser. Links are parsed and validated in real time using a low-overhead concurrency engine, allowing you to identify errors as they are found.
Why Link Integrity and Reachability Matters
Under modern search engine guidelines, high volumes of dead links or redirect chains negatively impact search engine optimization (SEO) ranking and signal poor maintenance. Outbound links to external references are a critical part of domain authority, meaning a broken citation directly harms authority.
The validator handles the reachability check with specialized features: 1. Concurrency: Evaluates lists of URLs in parallel to process checks within seconds. 2. Fallback Method: Retries blocked HEAD pings using standard GET requests to minimize false positives. 3. Redirect Auditing: Identifies target hops to eliminate extra server redirections. 4. Clean Parsing: Handles brackets, parentheses, and trailing punctuation in markdown pages.
Automating these checks prevents manual errors and reduces the time required to maintain documentation.
Key Features of the Navigation Integrity Checker
- ✓Real-time link streaming: Pings URLs concurrently and pushes status updates to the UI.
- ✓Intelligent fallbacks: Retries blocked HEAD requests using full GET methods before declaring a link broken.
- ✓File formats: Parses standard text files, HTML documents, or crawls live website pages.
- ✓Redirect tracking: Logs final destinations for redirects to help clean up path hops.
- ✓Deduplication: Automatically filters duplicate URLs to prevent server overload.
- ✓Free standard checking: Audits up to 3,000 web links per session without signup.
How the Link Scanner Works
When a webpage or document is submitted, the engine scans the text layer to extract absolute HTTP/HTTPS links. The discovered links are deduplicated and filtered to remove non-standard file extensions on the free tier.
The validation pipeline checks the remaining links concurrently. Each URL is checked using an HTTP HEAD request with a 3-second timeout limit. If a target server blocks the check with a 403 or 405 error, the system fallbacks to a GET request to verify if the site is readable. Results are streamed back to the client immediately.
Status Code Dictionary
Understanding the response status codes returned by the link auditing engine.
The server responded successfully. The page is active, reachable, and healthy.
The URL redirects to a different target page. The link works, but you should update the destination directly to eliminate unnecessary server redirection jumps.
Bad Request: The link contains an invalid structure, or represents a local file path reference (like a folder structure or drive path) which cannot be loaded from the public web.
Forbidden: The server exists but blocked our crawler (often due to automated bot defenses like Cloudflare firewalls). The link is likely active for human visitors.
Not Found: The target server returned a page does not exist error. The link should be replaced or deleted.
Request Timeout: The target server did not respond within the maximum 3-second limit. The host could be offline or experiencing severe load spikes.
Server Error: The target website returned a system crash code (such as 500 Internal Error or 503 Unavailable). The link is broken.
Frequently Asked Questions
Common questions about dead links, WAF blocks, and API allowances.
TaskVerified Enterprise: Link Auto-Resolution & Asset Scans
For large brands and scaling documentation teams, finding broken links is only the first step. TaskVerified Enterprise turns standard warning lists into automated link resolution and code patch pipelines.
- ✓Parallel AI integration: Resolves broken external links by querying Parallel agentic search to extract replacement URLs directly from target domains.
- ✓Context-enhanced search: Captures a 200-character parent text context snippet around broken links to ensure semantic keyword matching.
- ✓Automated code patches: Generates unified git diff patches for Markdown, HTML, and MDX source files in your repositories to build automated Pull Request pipelines.
- ✓Asset and media checking: Audits skipped link targets including PDFs, Word documents, zip folders, and image paths.
- ✓JavaScript SPA crawler: Runs headless browser pings (Chrome/Playwright) to verify links injected dynamically by modern React or Next.js frameworks.
- ✓Auth wall bypass: Inject custom authorization headers or session cookies to run link scans on private preview and staging builds.
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