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 | 498 | 145 | 90 % | 82 % |
| 2 | Number of Links Authority | -0.15 | 502 | 160 | 93 % | 78 % |
| 3 | Number of Internal Links Authority | -0.15 | 484 | 145 | 92 % | 81 % |
| 4 | Number of DoFollow Links Authority | -0.15 | 490 | 153 | 93 % | 78 % |
| 5 | Number of Absolute URLs Authority | -0.14 | 498 | 148 | 94 % | 82 % |
| 6 | Percentage of DoFollow Internal Links Authority | -0.13 | 93 | 83 | 92 % | 68 % |
| 7 | Ahrefs Internal Links Authority | -0.13 | 430 | 59 | 50 % | 16 % |
| 8 | Ahrefs External Links Authority | -0.13 | 93 | 13 | 48 % | 16 % |
| 9 | Number of External Links Authority | -0.12 | 49 | 16 | 87 % | 76 % |
| 10 | Has Privacy Policy Trust | -0.12 | 1 | 1 | 34 % | 66 % |
| 11 | Number of DoFollow External Links Authority | -0.12 | 41 | 14 | 84 % | 73 % |
| 12 | Number of Nofollow Links Authority | -0.12 | 40 | 8 | 45 % | 76 % |
| 13 | Number of NoFollow External Links Authority | -0.12 | 17 | 3 | 29 % | 74 % |
| 14 | Has Terms of Service Trust | -0.12 | 1 | 1 | 25 % | 70 % |
| 15 | Percentage of DoFollow External Links Authority | -0.11 | 50 | 12 | 82 % | 58 % |
| 16 | Percentage of DoFollow Links Authority | -0.11 | 100 | 93 | 92 % | 70 % |
| 17 | Ahrefs Has Internal Links Authority | -0.11 | 1 | 1 | 50 % | 16 % |
| 18 | Percentage of NoFollow External Links Authority | -0.11 | 13 | 2 | 27 % | 72 % |
| 19 | Percentage of NoFollow Links Authority | -0.11 | 15 | 5 | 42 % | 72 % |
| 20 | Percentage of NoFollow Internal Links Authority | -0.1 | 10 | 3 | 31 % | 69 % |
| 21 | Number of PingBacks Authority | -0.08 | 1 | 1 | 21 % | 44 % |
| 22 | Has RSS Link Authority | -0.08 | 1 | 1 | 35 % | 45 % |
| 23 | Number of Rel Author Links Authority | -0.07 | 4 | 1 | 5 % | 57 % |
| 24 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 92 % |
| 25 | Has Rel Pagination Authority | -0 | 1 | 0 | 0 % | 96 % |
| 26 | Has Rel Next Link Authority | -0 | 1 | 0 | 0 % | 96 % |
| 27 | Has Rel Prev Link Authority | -0 | 1 | 0 | 0 % | 99 % |