Top SEO Factor data is updated daily for latest "month to date" measurements.
| Name | Correlation | #1 Max | Page 1 Avg | Usage % | Searches % | |
| 1 | Ahrefs Referring Class C Addresses Authority | -0.23 | 1164 | 53 | 61 % | 13 % |
| 2 | Ahrefs Referring IP Addresses Authority | -0.23 | 1683 | 64 | 60 % | 13 % |
| 3 | Ahrefs Referring Domains Authority | -0.23 | 18660 | 129 | 61 % | 13 % |
| 4 | Ahrefs NoFollow Backlinks Authority | -0.22 | 29378 | 754 | 50 % | 12 % |
| 5 | Ahrefs Text Backlinks Authority | -0.22 | 746145 | 13239 | 61 % | 13 % |
| 6 | Ahrefs Backlinks Authority | -0.22 | 746186 | 13309 | 61 % | 13 % |
| 7 | Ahrefs Referring Pages Authority | -0.22 | 746185 | 13309 | 61 % | 13 % |
| 8 | Ahrefs Dofollow Backlinks Authority | -0.2 | 745823 | 13694 | 54 % | 12 % |
| 9 | Ahrefs Has Backlinks Authority | -0.19 | 1 | 1 | 60 % | 13 % |
| 10 | Ahrefs Has NoFollow Backlinks Authority | -0.19 | 1 | 1 | 50 % | 13 % |
| 11 | Ahrefs Has Text Backlinks Authority | -0.19 | 1 | 1 | 60 % | 13 % |
| 12 | Number of HTTPS Links Authority | -0.18 | 440 | 134 | 87 % | 82 % |
| 13 | Number of Links Authority | -0.17 | 447 | 151 | 91 % | 78 % |
| 14 | Number of Internal Links Authority | -0.16 | 427 | 131 | 91 % | 78 % |
| 15 | Number of DoFollow Links Authority | -0.16 | 433 | 143 | 91 % | 77 % |
| 16 | Number of Absolute URLs Authority | -0.16 | 1167 | 186 | 93 % | 81 % |
| 17 | Ahrefs Internal Links Authority | -0.15 | 246 | 56 | 66 % | 13 % |
| 18 | Number of External Links Authority | -0.15 | 101 | 21 | 86 % | 76 % |
| 19 | Ahrefs External Links Authority | -0.15 | 41 | 13 | 60 % | 13 % |
| 20 | Ahrefs Linked Root Domains Authority | -0.15 | 25 | 7 | 66 % | 13 % |
| 21 | Number of Nofollow Links Authority | -0.15 | 85 | 9 | 39 % | 82 % |
| 22 | Number of NoFollow External Links Authority | -0.14 | 47 | 4 | 28 % | 82 % |
| 23 | Percentage of NoFollow Links Authority | -0.14 | 28 | 6 | 38 % | 78 % |
| 24 | Number of DoFollow External Links Authority | -0.14 | 97 | 17 | 84 % | 72 % |
| 25 | Has Canonical URL Authority | -0.13 | 1 | 1 | 65 % | 71 % |
| 26 | Percentage of NoFollow External Links Authority | -0.13 | 23 | 3 | 26 % | 78 % |
| 27 | Number of Social Accounts Authority | -0.13 | 15 | 3 | 58 % | 71 % |
| 28 | Number of Social Pages Authority | -0.13 | 29 | 2 | 52 % | 70 % |
| 29 | Number of Twitter Accounts Authority | -0.12 | 10 | 1 | 50 % | 67 % |
| 30 | Percentage of DoFollow Internal Links Authority | -0.12 | 94 | 80 | 90 % | 65 % |
| 31 | Number of Facebook Accounts Authority | -0.12 | 3 | 1 | 38 % | 70 % |
| 32 | Percentage of NoFollow Internal Links Authority | -0.12 | 17 | 3 | 26 % | 72 % |
| 33 | Has Rel Next Link Authority | -0.12 | 1 | 1 | 7 % | 59 % |
| 34 | Has Meta Twitter Description Authority | -0.12 | 1 | 1 | 35 % | 64 % |
| 35 | Has Rel Pagination Authority | -0.12 | 1 | 1 | 7 % | 59 % |
| 36 | Percentage of DoFollow External Links Authority | -0.12 | 29 | 14 | 82 % | 56 % |
| 37 | Has Meta Twitter Title Authority | -0.12 | 1 | 1 | 37 % | 60 % |
| 38 | Percentage of DoFollow Links Authority | -0.11 | 100 | 93 | 90 % | 58 % |
| 39 | Number of Instagram Pages Authority | -0.11 | 28 | 2 | 33 % | 66 % |
| 40 | Has Meta Twitter Card Authority | -0.11 | 1 | 1 | 41 % | 60 % |
| 41 | Number of Google Plus Pages Authority | -0.11 | 3 | 1 | 17 % | 66 % |
| 42 | Has Meta Twitter Site Authority | -0.11 | 1 | 1 | 23 % | 61 % |
| 43 | Number of LinkedIn Pages Authority | -0.11 | 4 | 1 | 21 % | 63 % |
| 44 | Has RSS Link Authority | -0.11 | 1 | 1 | 37 % | 51 % |
| 45 | Has Twitter Account ID Authority | -0.1 | 1 | 1 | 2 % | 19 % |
| 46 | Number of Social Share Links Authority | -0.1 | 5 | 1 | 12 % | 58 % |
| 47 | Number of Facebook Share Links Authority | -0.1 | 3 | 1 | 9 % | 58 % |
| 48 | Number of PingBacks Authority | -0.1 | 1 | 1 | 21 % | 48 % |
| 49 | Has Facebook Page ID Authority | -0.1 | 1 | 1 | 2 % | 24 % |
| 50 | Number of LinkedIn Accounts Authority | -0.1 | 3 | 1 | 5 % | 44 % |
| 51 | Number of Facebook Pages Authority | -0.09 | 3 | 1 | 5 % | 55 % |
| 52 | Number of Google Plus Share Links Authority | -0.09 | 3 | 1 | 7 % | 52 % |
| 53 | Number of Rel Author Links Authority | -0.09 | 2 | 1 | 7 % | 55 % |
| 54 | Number of Tumblr Pages Authority | -0.09 | 10 | 1 | 3 % | 44 % |
| 55 | Search Result Link Text Has Domain Phrase Authority | -0.09 | 1 | 1 | 9 % | 75 % |
| 56 | Number of Twitter Share Links Authority | -0.09 | 3 | 1 | 2 % | 34 % |
| 57 | Has Meta Twitter Domain Authority | -0.09 | 1 | 1 | 3 % | 43 % |
| 58 | Number of Flickr Images Authority | -0.08 | 1 | 1 | 2 % | 26 % |
| 59 | Has Rel Prev Link Authority | -0.08 | 1 | 1 | 3 % | 33 % |