Learning Lab: Validate Your Course Links
Use the Link Validator to check and, if needed, update broken links in your course.
From the Settings page in your course, use the Course Link Validator to check for broken links.
Fix any broken links.
Note that the Link Validator isn't perfect! If you check a supposedly broken link and it is working, you can leave it as is.
You've already rated students with this rubric. Any major changes could affect their assessment results.