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 | -0.16 | 514 | 137 | 90 % | 86 % |
| 2 | Number of Links Authority | -0.16 | 515 | 145 | 92 % | 82 % |
| 3 | Number of Internal Links Authority | -0.16 | 492 | 129 | 91 % | 83 % |
| 4 | Number of DoFollow Links Authority | -0.15 | 504 | 139 | 91 % | 83 % |
| 5 | Number of Absolute URLs Authority | -0.15 | 394 | 142 | 92 % | 83 % |
| 6 | Number of External Links Authority | -0.14 | 55 | 18 | 86 % | 80 % |
| 7 | Number of DoFollow External Links Authority | -0.13 | 52 | 15 | 84 % | 78 % |
| 8 | Number of Nofollow Links Authority | -0.13 | 33 | 6 | 36 % | 81 % |
| 9 | Number of NoFollow External Links Authority | -0.12 | 17 | 3 | 24 % | 79 % |
| 10 | Has Privacy Policy Trust | -0.12 | 1 | 1 | 58 % | 74 % |
| 11 | Percentage of NoFollow Links Authority | -0.11 | 18 | 4 | 34 % | 76 % |
| 12 | Percentage of NoFollow External Links Authority | -0.11 | 14 | 2 | 22 % | 76 % |
| 13 | Percentage of NoFollow Internal Links Authority | -0.11 | 10 | 3 | 23 % | 74 % |
| 14 | Ahrefs Internal Links Authority | -0.11 | 467 | 59 | 44 % | 32 % |
| 15 | Percentage of DoFollow External Links Authority | -0.1 | 33 | 14 | 82 % | 61 % |
| 16 | Has Terms of Service Trust | -0.1 | 1 | 1 | 38 % | 76 % |
| 17 | Percentage of DoFollow Internal Links Authority | -0.1 | 97 | 81 | 89 % | 69 % |
| 18 | Percentage of DoFollow Links Authority | -0.09 | 100 | 94 | 91 % | 66 % |
| 19 | Ahrefs Has Internal Links Authority | -0.09 | 1 | 1 | 41 % | 30 % |
| 20 | Ahrefs External Links Authority | -0.09 | 58 | 11 | 41 % | 32 % |
| 21 | Number of Rel Author Links Authority | -0.08 | 2 | 1 | 5 % | 64 % |
| 22 | Has RSS Link Authority | -0.06 | 1 | 1 | 38 % | 54 % |
| 23 | Number of PingBacks Authority | -0.06 | 1 | 1 | 18 % | 50 % |
| 24 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 97 % |
| 25 | Has Rel Next Link Authority | -0 | 1 | 0 | 0 % | 97 % |
| 26 | Has Rel Pagination Authority | -0 | 1 | 0 | 0 % | 97 % |
| 27 | Number of Sponsored Links Authority | -0 | 1 | 0 | 0 % | 29 % |
| 28 | Number of UGC Links Authority | -0 | 1 | 0 | 0 % | 29 % |
| 29 | Has Rel Prev Link Authority | -0 | 1 | 0 | 0 % | 98 % |