With Ahrefs SEO toolbar you can instanlty get all the most important SEO metrics for any page you visit:
Number of backlinks,
Number of referring domains,
Ahrefs' SERP overlay will show you SEO metrics of the pages that rank for the keyword you're searching for, which helps understand how hard it would be to rank for this keyword.
Download Ahrefs' SEO toolbar and have the most important SEO metrics at your fingertips at all times.