Since PageRank is pretty much dead, the best metric we have in the business IMHO to rely on now for quick-glance information is PA/DA, especially PA from Moz. However: I've never really done a comprehensive look into it, and there are confusing PA/DA numbers. PR 5 > 6 is a gigantic jump, but in some ways, DA 50 > 60 seems like an even bigger jump since I rarely find a legitimate PR6 ever reaching 65 or above (I'm talking about legitimate PR - as in, links haven't changed much since the last PR update). Here has been my experience of PR to PA (these are the only PRs I care about, hence I've looked into them): PR5: Mid 40's to mid 50's PR6: Mid 50's to mid 60's (DA of a healthy domain usually being about 5-10 points lower) So since we no longer have the luxury of being able to 'group' domains via power with data straight from Google, we need to find other metrics/signals that we can correlate instead. So, in my case, a domain with a PA of 45 and a DA of 39 has a good chance of being equal to a PR5. I can then look into the links to determine the quality (because PR4's can have very high PA too since it is very imperfect and open for 'abuse') to make a guess as to whether it would've been grouped into PR 4 or 5 in Google's eyes. Let alone the huge variety of quality within the different PR groupings. Shesh... Are there any other numbers/metrics that you use for QUICK-GLANCE guesses/assessments of links/pages?