Inspect Canonical is a lightweight and user-friendly Chrome extension developed by Nick LeRoy. It provides a simple solution for checking the canonical source of any URL you are on. With this extension, there's no need to manually search through the source code to determine if the canonical tags point to a different destination.

Upon installation, Inspect Canonical displays one of three values for each page you visit. A green status indicates that the canonical tag points to the current URL, ensuring that the page is correctly canonicalized. An amber status indicates that the canonical tag exists but points to a different URL. Finally, a red status signifies various issues that may affect the canonicalization process.

Inspect Canonical tests for several conditions to determine the status of the canonical tag. These conditions include checking for the presence of a "noindex" robots meta tag, verifying the location of the canonical tag within the HTML structure, checking for the presence of multiple canonical tags, and ensuring that the canonical tag contains the necessary "href" attribute.

Overall, Inspect Canonical simplifies the process of verifying canonical tags, making it an essential tool for web developers and SEO professionals. It provides a quick and efficient way to ensure that canonicalization is correctly implemented on any webpage.