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 | 519 | 153 | 89 % | 80 % |
| 2 | Number of DoFollow Links Authority | -0.19 | 515 | 151 | 90 % | 79 % |
| 3 | Number of Internal Links Authority | -0.19 | 511 | 139 | 89 % | 79 % |
| 4 | Number of Links Authority | -0.19 | 520 | 156 | 89 % | 73 % |
| 5 | Number of Absolute URLs Authority | -0.18 | 1845 | 260 | 91 % | 77 % |
| 6 | Number of External Links Authority | -0.16 | 137 | 18 | 85 % | 70 % |
| 7 | Percentage of DoFollow Internal Links Authority | -0.15 | 95 | 78 | 88 % | 69 % |
| 8 | Number of DoFollow External Links Authority | -0.15 | 136 | 16 | 83 % | 68 % |
| 9 | Number of Nofollow Links Authority | -0.15 | 58 | 6 | 35 % | 73 % |
| 10 | Has Privacy Policy Trust | -0.15 | 1 | 1 | 59 % | 69 % |
| 11 | Number of NoFollow External Links Authority | -0.14 | 23 | 3 | 23 % | 71 % |
| 12 | Percentage of NoFollow Links Authority | -0.14 | 22 | 4 | 32 % | 66 % |
| 13 | Percentage of DoFollow Links Authority | -0.13 | 100 | 89 | 89 % | 69 % |
| 14 | Percentage of NoFollow External Links Authority | -0.13 | 12 | 2 | 21 % | 67 % |
| 15 | Has Terms of Service Trust | -0.13 | 1 | 1 | 35 % | 60 % |
| 16 | Percentage of NoFollow Internal Links Authority | -0.12 | 17 | 2 | 21 % | 63 % |
| 17 | Has RSS Link Authority | -0.12 | 1 | 1 | 34 % | 44 % |
| 18 | Percentage of DoFollow External Links Authority | -0.11 | 28 | 13 | 82 % | 55 % |
| 19 | Has Rel Next Link Authority | -0.1 | 1 | 1 | 3 % | 65 % |
| 20 | Has Rel Pagination Authority | -0.1 | 1 | 1 | 3 % | 62 % |
| 21 | Number of PingBacks Authority | -0.1 | 1 | 1 | 15 % | 43 % |
| 22 | Number of Rel Author Links Authority | -0.07 | 3 | 1 | 4 % | 54 % |
| 23 | Has Rel Prev Link Authority | -0.01 | 1 | 0 | 0 % | 71 % |
| 24 | Number of UGC Links Authority | -0.01 | 2 | 0 | 0 % | 74 % |
| 25 | Number of Sponsored Links Authority | -0.01 | 2 | 0 | 0 % | 73 % |
| 26 | Number of MailTo Links Trust | -0.01 | 1 | 0 | 0 % | 79 % |
| 27 | Ahrefs External Links Authority | 0 | 0 | 0 | 0 % | 59 % |
| 28 | Ahrefs Has Internal Links Authority | 0 | 0 | 0 | 0 % | 59 % |
| 29 | Ahrefs Internal Links Authority | 0 | 0 | 0 | 0 % | 59 % |