<p>The use of off-site URL shorteners has been discouraged for a long time:</p>
<ul>
<li><a href="https://meta.stackexchange.com/a/113660/282094">No URL Shorteners</a></li>
<li><a href="https://meta.stackexchange.com/q/205806/282094">URL Shorteners cleanup</a></li>
</ul>
<p>Our official URL shortener list is here:</p>
<ul>
<li><a href="https://meta.stackexchange.com/q/109795/282094">What shortened URLs are available through s.tk?</a></li>
</ul>
