There is a common belief that when you check Google backlinks using info:domain Google is showing all the links that influence its rankings. Unfortunately not the Google backlink checker is not a SEO Tool and it does not display all links that weight its algothrithm.
Please see below:
1: The Google backlink check is not an SEO tool.
2: The backlink search does not represent the sum total of all links that Google knows about your site.
3: The backlinks shown do not represent links that are counting as part of your backlinks.
4: Just because it shows up in the backlink search does not mean Google is using it for your ranking.
5: Just because a backlink is missing does not mean Google is unaware of it
6: Just because a backlink is missing does not mean Google is not counting it for ranking purposes.