Precision-engineered canonical url checker for the modern web.
About Canonical URL checker
Canonical URL checker is the fastest way to map and audit the URL structure of any webpage without spinning up a crawler or paying for an SEO suite. Built on native browser APIs, it parses rendered HTML on-device, identifies every hyperlink, categorises internal versus external destinations, follows redirect chains and surfaces dead links — all while keeping your input private. Whether you are doing a pre-launch QA pass, a competitor audit or a migration check, Canonical URL checker gives you a complete, export-ready map of a page's link architecture in under a second.
Problems This Tool Solves
Manually auditing a page's links is slow, error-prone and impossible at scale. - Canonical URL checker extracts thousands of links per second and classifies each one by type, status code and destination.
Pasting data into an online tool means trusting a third-party server with your content. - Canonical URL checker runs 100% inside your browser — nothing you paste is transmitted, logged, or stored.
Broken and redirected links quietly hurt SEO rankings and user experience. - Canonical URL checker surfaces 404s, 301/302 chains and loops in a single audit so you can fix them before Googlebot does.
Exporting link data for use in other SEO tools usually means reformatting spreadsheets. - Canonical URL checker outputs clean CSV and JSON with industry-standard column headers that drop straight into Ahrefs, Screaming Frog and custom pipelines.
How to Use
Load the page - Enter any public URL. The tool fetches through a sandboxed, cache-friendly request.
Choose filters - Toggle internal, external, nofollow and redirect categories to match your audit goal.
Scan - Extraction, status-code probing and anchor-text capture run in parallel across the page.
Download the report - Export a timestamped CSV ready for spreadsheet analysis or BI ingestion.
Why This Tool Is Better
Local-first privacy - URLs you analyse never leave your browser tab — unlike cloud crawlers that log every request server-side.
WebAssembly speed - Parsing runs at near-native speed, so even long pages with thousands of links complete in well under a second.
Export-ready output - Clean CSV and JSON with canonical column headers plug straight into Ahrefs, Screaming Frog and your own pipelines.
Category: Web / SEO Tools
This tool runs entirely in your browser. No data is sent to any server. Try the Canonical URL checker now - it is free.