Do you have a lot of external links on your site, but you don’t have the time to review them all to make sure they haven’t broken?
Activate the Broken Link Checker plugin. It’ll give you a rundown of how many links your blog has, and which if any are broken. You can then correct them, remove the link (but not the text), or change the way they appear on the page.
It will also check your video embeds if you check off that option.