So, you want to see if a rick roll link, huh? Good! You've come to the right place. Here, you can blah blah blah blah, lets get to it :).
Step 1. Ask them. If you don't believe them, read on. Still don't believe them?
Step 2. Hover over the link, if the link is disguised, then in the bottom left corner, it will tell you where it actually takes you.
Step 3. If the link IS actually from imgflip.com, then look to see if the link has the word "gif" in it.
Step 4. Please upvote this comment, I spent a while typing it cuz I'm a slow typer.