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 | -0.19 | 491 | 153 | 89 % | 74 % |
| 2 | Number of Internal Links Authority | -0.19 | 480 | 139 | 89 % | 73 % |
| 3 | Number of Links Authority | -0.18 | 492 | 156 | 89 % | 66 % |
| 4 | Number of DoFollow Links Authority | -0.18 | 476 | 150 | 89 % | 74 % |
| 5 | Number of Absolute URLs Authority | -0.17 | 907 | 235 | 91 % | 71 % |
| 6 | Number of External Links Authority | -0.16 | 81 | 17 | 86 % | 68 % |
| 7 | Percentage of DoFollow Internal Links Authority | -0.15 | 94 | 78 | 88 % | 66 % |
| 8 | Number of DoFollow External Links Authority | -0.15 | 63 | 15 | 84 % | 66 % |
| 9 | Number of Nofollow Links Authority | -0.15 | 83 | 7 | 32 % | 67 % |
| 10 | Has Privacy Policy Trust | -0.14 | 1 | 1 | 58 % | 62 % |
| 11 | Number of NoFollow External Links Authority | -0.13 | 35 | 3 | 21 % | 68 % |
| 12 | Percentage of DoFollow Links Authority | -0.13 | 100 | 90 | 89 % | 64 % |
| 13 | Has Terms of Service Trust | -0.13 | 1 | 1 | 35 % | 58 % |
| 14 | Percentage of NoFollow Links Authority | -0.13 | 22 | 3 | 30 % | 63 % |
| 15 | Percentage of NoFollow External Links Authority | -0.12 | 14 | 2 | 19 % | 64 % |
| 16 | Has RSS Link Authority | -0.12 | 1 | 1 | 33 % | 38 % |
| 17 | Percentage of DoFollow External Links Authority | -0.12 | 29 | 13 | 83 % | 50 % |
| 18 | Percentage of NoFollow Internal Links Authority | -0.12 | 17 | 2 | 18 % | 58 % |
| 19 | Has Rel Next Link Authority | -0.1 | 1 | 1 | 3 % | 62 % |
| 20 | Number of PingBacks Authority | -0.1 | 1 | 1 | 14 % | 37 % |
| 21 | Has Rel Pagination Authority | -0.09 | 1 | 1 | 3 % | 57 % |
| 22 | Number of Rel Author Links Authority | -0.07 | 1 | 1 | 3 % | 49 % |
| 23 | Has Rel Prev Link Authority | -0.01 | 1 | 0 | 0 % | 66 % |
| 24 | Number of UGC Links Authority | -0.01 | 2 | 0 | 0 % | 70 % |
| 25 | Number of Sponsored Links Authority | -0.01 | 2 | 0 | 0 % | 70 % |
| 26 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 73 % |
| 27 | Ahrefs External Links Authority | 0 | 0 | 0 | 0 % | 55 % |
| 28 | Ahrefs Has Internal Links Authority | 0 | 0 | 0 | 0 % | 55 % |
| 29 | Ahrefs Internal Links Authority | 0 | 0 | 0 | 0 % | 55 % |