Top SEO Factor data is updated daily for latest "month to date" measurements.
| Name | Correlation | #1 Max | Page 1 Avg | Usage % | Searches % | |
| 1 | Number of HTTPS Links Authority | -0.18 | 558 | 130 | 86 % | 87 % |
| 2 | Number of Links Authority | -0.18 | 561 | 141 | 89 % | 84 % |
| 3 | Number of Internal Links Authority | -0.18 | 551 | 125 | 88 % | 85 % |
| 4 | Number of DoFollow Links Authority | -0.18 | 558 | 135 | 88 % | 83 % |
| 5 | Number of Absolute URLs Authority | -0.16 | 464 | 127 | 90 % | 83 % |
| 6 | Number of External Links Authority | -0.15 | 197 | 17 | 82 % | 80 % |
| 7 | Number of DoFollow External Links Authority | -0.14 | 195 | 15 | 80 % | 77 % |
| 8 | Number of Nofollow Links Authority | -0.14 | 72 | 7 | 36 % | 82 % |
| 9 | Ahrefs Internal Links Authority | -0.14 | 476 | 77 | 61 % | 43 % |
| 10 | Percentage of DoFollow Internal Links Authority | -0.13 | 94 | 79 | 87 % | 70 % |
| 11 | Number of NoFollow External Links Authority | -0.13 | 55 | 3 | 23 % | 81 % |
| 12 | Percentage of NoFollow Links Authority | -0.13 | 18 | 4 | 35 % | 75 % |
| 13 | Has Privacy Policy Trust | -0.13 | 1 | 1 | 46 % | 75 % |
| 14 | Percentage of DoFollow Links Authority | -0.13 | 100 | 92 | 87 % | 69 % |
| 15 | Percentage of NoFollow External Links Authority | -0.12 | 15 | 2 | 22 % | 76 % |
| 16 | Has Terms of Service Trust | -0.12 | 1 | 1 | 32 % | 74 % |
| 17 | Percentage of NoFollow Internal Links Authority | -0.11 | 15 | 3 | 25 % | 72 % |
| 18 | Ahrefs External Links Authority | -0.11 | 177 | 18 | 56 % | 40 % |
| 19 | Percentage of DoFollow External Links Authority | -0.11 | 36 | 14 | 78 % | 61 % |
| 20 | Ahrefs Has Internal Links Authority | -0.09 | 1 | 1 | 59 % | 34 % |
| 21 | Has RSS Link Authority | -0.09 | 1 | 1 | 32 % | 50 % |
| 22 | Number of PingBacks Authority | -0.09 | 1 | 1 | 18 % | 51 % |
| 23 | Number of Rel Author Links Authority | -0.07 | 2 | 1 | 5 % | 57 % |
| 24 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 94 % |
| 25 | Has Rel Next Link Authority | -0 | 1 | 0 | 0 % | 97 % |
| 26 | Has Rel Pagination Authority | -0 | 1 | 0 | 0 % | 97 % |
| 27 | Has Rel Prev Link Authority | -0 | 1 | 0 | 0 % | 98 % |