<https://w3schools.invisionzone.com/topic/10828-signatures/page/3/#comment-193385>
<http://schema.org/text>
"I see many people having signature links, so i assume that's allowed, but just to be sure, is it? can i link to any site i like? "
<https://w3schools.invisionzone.com/topic/10828-signatures/page/3/>