The best backlink checker has to provide you all must-have metrics. These are:
link text (or anchor text) which appears on the linking website;
target page = the page of your website where the referring page is linking to;
website rating metrics which are proprietary for every data provider. Majestic shows you URL Trust Flow and URL Citation Flow, WebCEO provides monthly organic traffic data for the linking domain;
link status which shows whether the backlink is dofollow, nofollow or toxic.