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 | 506 | 153 | 89 % | 77 % |
| 2 | Number of Internal Links Authority | -0.18 | 483 | 139 | 89 % | 76 % |
| 3 | Number of Links Authority | -0.18 | 507 | 157 | 90 % | 73 % |
| 4 | Number of DoFollow Links Authority | -0.18 | 485 | 150 | 90 % | 76 % |
| 5 | Number of Absolute URLs Authority | -0.17 | 840 | 242 | 91 % | 77 % |
| 6 | Percentage of DoFollow Internal Links Authority | -0.15 | 93 | 78 | 89 % | 71 % |
| 7 | Number of External Links Authority | -0.15 | 228 | 18 | 85 % | 69 % |
| 8 | Number of Nofollow Links Authority | -0.15 | 121 | 7 | 33 % | 73 % |
| 9 | Number of DoFollow External Links Authority | -0.14 | 225 | 15 | 84 % | 66 % |
| 10 | Number of NoFollow External Links Authority | -0.13 | 120 | 4 | 22 % | 71 % |
| 11 | Has Privacy Policy Trust | -0.13 | 1 | 1 | 57 % | 64 % |
| 12 | Percentage of NoFollow Links Authority | -0.13 | 21 | 4 | 31 % | 68 % |
| 13 | Has Terms of Service Trust | -0.12 | 1 | 1 | 35 % | 60 % |
| 14 | Percentage of DoFollow Links Authority | -0.12 | 99 | 90 | 90 % | 67 % |
| 15 | Percentage of NoFollow Internal Links Authority | -0.12 | 14 | 2 | 19 % | 64 % |
| 16 | Percentage of NoFollow External Links Authority | -0.12 | 13 | 2 | 21 % | 68 % |
| 17 | Has RSS Link Authority | -0.11 | 1 | 1 | 34 % | 47 % |
| 18 | Percentage of DoFollow External Links Authority | -0.1 | 25 | 12 | 82 % | 52 % |
| 19 | Has Rel Next Link Authority | -0.1 | 1 | 1 | 3 % | 68 % |
| 20 | Has Rel Pagination Authority | -0.09 | 1 | 1 | 3 % | 66 % |
| 21 | Number of PingBacks Authority | -0.09 | 1 | 1 | 15 % | 45 % |
| 22 | Number of Rel Author Links Authority | -0.07 | 2 | 1 | 4 % | 54 % |
| 23 | Has Rel Prev Link Authority | -0.01 | 1 | 0 | 0 % | 72 % |
| 24 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 81 % |
| 25 | Number of UGC Links Authority | -0 | 1 | 0 | 0 % | 82 % |
| 26 | Number of Sponsored Links Authority | -0 | 1 | 0 | 0 % | 82 % |
| 27 | Ahrefs External Links Authority | 0 | 0 | 0 | 0 % | 57 % |
| 28 | Ahrefs Has Internal Links Authority | 0 | 0 | 0 | 0 % | 57 % |
| 29 | Ahrefs Internal Links Authority | 0 | 0 | 0 | 0 % | 57 % |