This will take a URL and turn it into a link with just the domain.
If your variable is any of these:
website: http://myurl.com/
website: http://myurl.com
website: http://www.myurl.com/
website: http://www.myurl.com
website: https://myurl.com/
website: https://myurl.com
website: https://www.myurl.com/
website: https://www.myurl.com
and you use this in your template:
{{ website|url_link }}
it'll turn into a link with the domain as the text and the original URL in the href.
ie.
<a href="http://www.myurl.com">myurl.com</a>
If you just want the nicely formatted url, you can do this:
{{ website|url_link:no }}
Outputs: myurl.com