For the Link Dialog
The add link dialogue could do with a few more options such as 'noreferrer' and nofollow.
One recommendation is to add rel="noreferrer" and nofollow to our external links to prevent those target pages from being able to have some access back to our page as well as protect references back to us.
I created an idea on Sitefinitys feedback site if you would like to support (or not) or improve on the thought.
Funny note: the misspelling 'noreferrer' was not noticed by anyone before the implementation of the HTTP 1.0 standard and no one was interested in coordinating the correction after the fact.
Thanks for reading and feel free to comment - Darrin Robertson