Canonical Version Guard
Submit a URL to evaluate its protocol, subdomain, and trailing-slash variations. This tool crawls the 8-way version check concurrently to verify redirect paths and canonical tag alignment.
Frequently Asked Questions
Search engines treat protocol (HTTP vs HTTPS), subdomain (www vs non-www), and path trailing slash variations as distinct, separate pages. Unless these versions redirect to a single, unified canonical version, your search equity splits, creating index duplication.
Non-canonical versions should redirect to the canonical path with permanent 301 or 308 codes. A 302 or 307 temporary redirect warns crawlers that the move is not permanent, meaning indexing value does not pass cleanly to the canonical destination.
If a variant resolves to 200 OK without redirecting, it must have a canonical tag that points back to the correct landing path. This explicitly instructs search engine indexing bots which version to prioritise.