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 | 576 | 133 | 88 % | 82 % |
| 2 | Ahrefs Internal Links Authority | -0.17 | 435 | 81 | 67 % | 15 % |
| 3 | Number of Links Authority | -0.17 | 676 | 147 | 92 % | 79 % |
| 4 | Number of Absolute URLs Authority | -0.17 | 668 | 188 | 93 % | 77 % |
| 5 | Number of Internal Links Authority | -0.16 | 662 | 128 | 91 % | 79 % |
| 6 | Number of DoFollow Links Authority | -0.16 | 673 | 140 | 92 % | 79 % |
| 7 | Number of External Links Authority | -0.16 | 166 | 20 | 86 % | 75 % |
| 8 | Ahrefs External Links Authority | -0.16 | 53 | 15 | 62 % | 14 % |
| 9 | Number of DoFollow External Links Authority | -0.15 | 165 | 17 | 85 % | 71 % |
| 10 | Ahrefs Has Internal Links Authority | -0.14 | 1 | 1 | 65 % | 13 % |
| 11 | Number of Nofollow Links Authority | -0.13 | 55 | 8 | 38 % | 80 % |
| 12 | Has Privacy Policy Trust | -0.13 | 1 | 1 | 61 % | 73 % |
| 13 | Number of NoFollow External Links Authority | -0.13 | 34 | 4 | 27 % | 78 % |
| 14 | Has Terms of Service Trust | -0.13 | 1 | 1 | 42 % | 66 % |
| 15 | Percentage of NoFollow Links Authority | -0.13 | 23 | 5 | 36 % | 73 % |
| 16 | Percentage of NoFollow External Links Authority | -0.12 | 20 | 3 | 25 % | 74 % |
| 17 | Percentage of DoFollow External Links Authority | -0.12 | 28 | 14 | 82 % | 57 % |
| 18 | Has Rel Pagination Authority | -0.12 | 1 | 1 | 7 % | 52 % |
| 19 | Has Rel Next Link Authority | -0.12 | 1 | 1 | 7 % | 53 % |
| 20 | Percentage of DoFollow Internal Links Authority | -0.12 | 96 | 81 | 90 % | 63 % |
| 21 | Percentage of NoFollow Internal Links Authority | -0.11 | 18 | 3 | 24 % | 69 % |
| 22 | Percentage of DoFollow Links Authority | -0.11 | 100 | 94 | 90 % | 59 % |
| 23 | Has RSS Link Authority | -0.1 | 1 | 1 | 36 % | 48 % |
| 24 | Number of PingBacks Authority | -0.1 | 1 | 1 | 20 % | 45 % |
| 25 | Number of Rel Author Links Authority | -0.09 | 7 | 1 | 7 % | 53 % |
| 26 | Has Rel Prev Link Authority | -0.07 | 1 | 1 | 3 % | 29 % |