Also check out this handy redirect URL for when you forget the main one:
<a href="https://whatcanmyfontdo.com" rel="nofollow">https://whatcanmyfontdo.com</a>
Some previous discussion: <a href="https://news.ycombinator.com/item?id=34365536">https://news.ycombinator.com/item?id=34365536</a>