> For the complete documentation index, see [llms.txt](https://docs.chamilo.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chamilo.org/1.11.x/teacher-guide/links/links_checker.md).

# Links checker

Since version 1.8.8.4, you can (manually) check whether a link is alive. To do this, click the small magnifier icon ![](/files/-LH9CySyPzC8uzJRsN3y) on the right side of the link as it is listed in the Links page. After a few seconds (or less), an icon appears. A green tick ![](/files/-LH9CyT4JFBwv8ukKpOd) means the link is valid. A red sign ![](/files/-LH9CyTA1i67rsWEnut2) means the link is broken.

> **Note**: the links checker effectively tries to connect to the given link **from the server.** As such, a link that works for you might not work for the server, and vice-versa. This will require the server to be equipped with the CURL library. Check with your admin if this is the case.