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 | -0.15 | 399 | 107 | 74 % | 84 % |
| 2 | Number of Links Authority | -0.14 | 404 | 114 | 76 % | 82 % |
| 3 | Number of Internal Links Authority | -0.14 | 387 | 99 | 75 % | 82 % |
| 4 | Number of DoFollow Links Authority | -0.14 | 396 | 108 | 76 % | 81 % |
| 5 | Number of Absolute URLs Authority | -0.14 | 414 | 112 | 77 % | 82 % |
| 6 | Number of Nofollow Links Authority | -0.12 | 82 | 6 | 32 % | 82 % |
| 7 | Number of External Links Authority | -0.12 | 100 | 15 | 69 % | 77 % |
| 8 | Number of NoFollow External Links Authority | -0.11 | 73 | 3 | 22 % | 80 % |
| 9 | Percentage of NoFollow Links Authority | -0.11 | 24 | 4 | 30 % | 76 % |
| 10 | Percentage of NoFollow External Links Authority | -0.11 | 21 | 2 | 20 % | 75 % |
| 11 | Number of DoFollow External Links Authority | -0.11 | 42 | 12 | 67 % | 77 % |
| 12 | Has Privacy Policy Trust | -0.1 | 1 | 1 | 46 % | 74 % |
| 13 | Percentage of DoFollow Internal Links Authority | -0.1 | 94 | 63 | 72 % | 70 % |
| 14 | Has Terms of Service Trust | -0.1 | 1 | 1 | 33 % | 72 % |
| 15 | Percentage of DoFollow Links Authority | -0.1 | 100 | 72 | 70 % | 67 % |
| 16 | Percentage of NoFollow Internal Links Authority | -0.1 | 11 | 2 | 22 % | 72 % |
| 17 | Percentage of DoFollow External Links Authority | -0.09 | 27 | 11 | 62 % | 64 % |
| 18 | Ahrefs Internal Links Authority | -0.08 | 176 | 36 | 34 % | 17 % |
| 19 | Ahrefs External Links Authority | -0.08 | 58 | 8 | 31 % | 17 % |
| 20 | Has RSS Link Authority | -0.08 | 1 | 1 | 28 % | 54 % |
| 21 | Number of PingBacks Authority | -0.07 | 1 | 1 | 15 % | 56 % |
| 22 | Ahrefs Has Internal Links Authority | -0.07 | 1 | 0 | 32 % | 17 % |
| 23 | Number of Rel Author Links Authority | -0.06 | 2 | 1 | 5 % | 61 % |
| 24 | Has Rel Next Link Authority | -0.01 | 1 | 0 | 0 % | 92 % |
| 25 | Has Rel Pagination Authority | -0.01 | 1 | 0 | 0 % | 92 % |
| 26 | Has Rel Prev Link Authority | -0 | 1 | 0 | 0 % | 92 % |
| 27 | Number of MailTo Links Trust | -0 | 1 | 0 | 0 % | 91 % |