I was trying to build backlinks to my blog and if I paste the exact URL in Google I can see 3 backlinks to my blog from Google. When I checked those for the PR of google it is showing PR 9. It has good Domain Authority. But Ahrefs is showing 0 backlins why? How to make ahrefs to count it and if I have 3 backlinks from them can I expect PR 3 - 4 in next PR update?