Blocking short URLs is a common – if shortsighted – practice
Sure, you can hide illegitimate links behind t.co, bit.ly, etc
You can also be doing it because it's simpler than having some 500 character URL with all kinds of random crap in GET attributes (for sites and services that haven't realized how simple implementing RESTful methods are)
August 30, 2019 at 12:56PM
via reddit https://www.reddit.com/r/security/comments/cxga04/short_url_blocking_in_spam_filter_good_bad/eylgx3z?utm_source=ifttt