# What is Canonical URL?

The canonical URL is the one preferred version of a page. Other URLs that show the same content should point at it with rel=canonical.

Filter query strings on archives canonicalise to the clean path. Each launch has one canonical product page.

| Field | Value |
| --- | --- |
| term | Canonical URL |
| canonical | https://www.scrolllaunch.com/glossary/canonical-url |
| kind | defined term |

## On ScrollLaunch

- [Canonical checker](https://www.scrolllaunch.com/tools/canonical-url-checker)