Unmaintained [ValveTime.net] Block Short URLs 1.0

Great!

Outstanding. I really could have used this last year. LOL (Kept your list "as is" except for removing youtu.be so videos could be shared)

Love this add-on. This is a vital resource for anyone who is worried about users posting spam & viruses. It also does a great job keeping users from trying to hide what sites they are linking to (perhaps a competitor site?), and ensures that you can monetize each and every link that is posted to your site (if you are using the eBay, Amazon, or other affiliate auto-link add-ons.)

Great job!