Have you ever gotten this email from your students, "Professor, the link for the reading isn't working"? Most of us have experienced that situation. If only there was a tool that would check your course for you. Canvas' Link Validation tool will check every external link in your course. You may run the tool whenever you want. If you're someone who uses a lot of Open Education Resources (OER), you may want to run the link validator several times throughout the semester.
How do I validate links in a course? (Instructure Community)