When one page is reachable at several URLs, search engines need to know which one counts, or they split the signals across all of them. The canonical tag is the declaration, and alternate link tags list the other language or region variants.
Enter the main URL and optional alternates and it builds clean rel=canonical and rel=alternate tags. Add them to the page head, keep the canonical self-referencing on the primary URL, and the duplicates stop diluting the ranking.
Try it now: open the free tool, runs 100{ddff9936f8333f09603555df7bd6492034f3a4a35de784276d3cf3d66166a113} in your browser.
Bottom line: point the canonical at the version you want indexed, keep alternates honest.
Your turn: use the tool free here, no signup, nothing leaves your device.
How do you use Canonical URL Tag Generator?
Open the Canonical URL Tag Generator in your browser (Build canonical and alternate link tags). Type or paste your input, adjust the options, and copy the result. Everything runs locally on your device with no account and nothing stored, so the three steps below take seconds even for confidential work.
- Paste the text you want to work with.
- Choose the transformation you need.
- Copy the result, or tweak the input to see it update live.
Try Canonical URL Tag Generator free. It opens right in your browser.