Over 800 million monthly users, really? :D

URL shorteners are generally blocked and for good reason.

How so? I can get bit.ly being blocked in general as it’s commonly known but emol.ink for example is not. For all an unsuspecting reader knows that (emol.ink) could be an alternative to emojipedia.

Can any URL shortener be detected by Automod automatically with technical means, by checking for permanent redirects e.g.?

Or is some poor fella forced to maintain a static list of know URL shorteners the Automod uses? :D

Will emol.ink work? :D