Hi, I've heard the term "AC ranking" used a lot recently but I'm unsure of what it means, could someone enlighten me please? Thanks,
ACRank stands for A-Citation-Rank. It is a very simple measure of how important a particular page is by assigning a number from 0 (lowest) to 15 (highest) depending on the number of unique referring external root domains. Therefore in order for a page or link to have ACRank of 1 or higher it needs to have at least one external backlink. ACRank is a very simple and primitive measure of importance that allows us to prioritise analysis by looking at the data with the highest ACRanks first. However it should be said that in its current design it suffers from a serious drawback: the actual ACRank weight of a backlink is not taken into account, so a page with one backlink of ACRank 1 will have the same ACRank value of 1 just like the other page that has got a backlink with ACRank of 10 (or 15). Clearly the latter page should have got a higher ACRank as being linked to from the more important pages intuitively makes the page they linked to also more important. This drawback is going to be addressed shortly. Despite this limitation ACRank makes it easier to analyse data that is likely to have the highest weight. Meanwhile a concept of ACRank spread is used in an attempt to have better comparison of pages that might have the same ACRank.