Free Link Checker

Best Free Link Checker Tools to Find Broken & Redirected URLs

Here’s a concise guide to top free link checker tools you can use to find broken links, redirects, and other URL issues — with what each tool does best, key limitations, and quick usage tips.

1. Screaming Frog SEO Spider (Free tier)

• What it does: Desktop crawler that audits internal/external links, HTTP status codes, redirects, anchor text, and more.
• Best for: Detailed site audits on smaller sites.
• Limitations: Free version crawls up to 500 URLs; desktop app only (Windows/Mac/Linux).
• Quick tip: Export CSV of 4xx/5xx and redirect chains for prioritized fixes.

2. Ahrefs’ Broken Link Checker (Free online tool)

• What it does: Online tool that finds broken outbound links on a given webpage or domain and lists status codes.
• Best for: Quick checks of specific pages or domains without installing software.
• Limitations: Limited functionality compared with paid Ahrefs; may require domain verification for deeper scans.
• Quick tip: Use it to find expired outbound links you can replace with your content for outreach opportunities.

3. Dead Link Checker (deadlinkchecker.com)

• What it does: Simple online checker and scheduled monitoring; can scan a single page or full website.
• Best for: Beginners who want a no-friction web-based check.
• Limitations: UI/feature set is basic; full-site scans can be slow.
• Quick tip: Run periodic single-page checks after content updates.

4. Broken Link Checker (WordPress plugin)

• What it does: Scans posts, pages, comments, and custom fields for broken links and missing images; flags them in WP admin.
• Best for: WordPress sites needing continuous monitoring inside their CMS.
• Limitations: Can be resource-intensive on large sites; may slow admin screens.
• Quick tip: Schedule scans during low-traffic hours and use its bulk actions to update or unlink URLs.

5. W3C Link Checker

• What it does: Web-based validator that checks links, anchors, and HTML conformance across pages.
• Best for: Developers needing standards-compliant checks and detailed diagnostics.
• Limitations: Interface is technical; not optimized for large-scale site audits.
• Quick tip: Use query options to follow only same-domain links for focused audits.

6. Integrity (Mac app)

• What it does: Desktop crawler for macOS that reports broken links, redirects, and server errors.
• Best for: Mac users wanting a native app for small-to-medium sites.
• Limitations: macOS only; free version has some feature limits.
• Quick tip: Export reports to CSV for developer handoff.

7. Sitechecker (free tools)

• What it does: Online site audit tools including a free broken link checker that scans for 4xx/5xx errors and redirects.
• Best for: Marketers wanting an integrated set of SEO checks with a simple dashboard.
• Limitations: Free features restricted; more advanced reports behind paywall.
• Quick tip: Combine link checks with their on-page SEO suggestions to prioritize fixes.

How to choose and use a tool (quick checklist)

• Size of site: Desktop crawlers (Screaming Frog, Integrity) for up to ~500–1,000 URLs in free tiers; paid plans for larger sites.
• Platform: WordPress sites often benefit most from the Broken Link Checker plugin.
• Frequency: For continuous monitoring, use plugins or services with scheduled scans.
• Output needs: Exportable CSV/XLSX if you need to hand off fixes to developers.
• Depth: Look for tools that report redirect chains and soft 404s, not just 404 pages.

Priority fixes to look for

• 4xx errors (broken pages) — fix or redirect.
• 5xx errors (server issues) — check hosting/response.
• Redirect chains and loops — shorten to a single 301 where possible.
• Soft 404s — ensure correct status codes or restore content.
• Broken external links —