HTML – Add a UTM Query String to a Link
UTM parameters are a set of tags added to the end of off-site, incoming URLs to see where the visitor came from when arriving at your site.
HTML – Add nofollow to a Link
The HTML nofollow attribute tells search engines to ignore the link, and not follow it or pass PageRank to the target site or page.
HTML – Create a Phone Number Link
A phone number listed on the page can be turned into a clickable link using the HTML a tag.