Moz
This is one of the most popular backlink analysis services. With his help you can not only find out the backlinks to the site, but also get a lot of useful SEO information
Analyzing
Tracking Clicks on Links with Google Tag Manager: A Practical Guide with Examples
I already wrote about how click tracking is very important in web analytics in the first part of this article Tracking Clicks on Site Elements with Google Tag Manager: An Advanced Guide (If you haven’t read it yet, be sure to do so).
Analyzing a site with Ahrefs
To familiarize yourself with the tool is implemented conditionally free tool Backlink Checker.
Majestic
Checking backlinks with Majestic