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 HTML Tags Size | -0.19 | 2161 | 839 | 95 % | 86 % |
| 2 | Number of P Tags Size | -0.19 | 149 | 37 | 89 % | 83 % |
| 3 | Number of Heading Tags Size | -0.17 | 49 | 21 | 90 % | 88 % |
| 4 | Number of H3 Tags Size | -0.16 | 25 | 8 | 69 % | 84 % |
| 5 | Number of Images with ALT Text Size | -0.15 | 86 | 17 | 84 % | 86 % |
| 6 | Number of H2 Tags Size | -0.15 | 15 | 6 | 74 % | 85 % |
| 7 | Number of Images Size | -0.15 | 105 | 26 | 90 % | 82 % |
| 8 | Number of H4 Tags Size | -0.12 | 17 | 5 | 48 % | 78 % |
| 9 | Number of HREF Lang Tags Size | -0.12 | 11 | 2 | 9 % | 73 % |
| 10 | Number of H5 Tags Size | -0.11 | 8 | 2 | 22 % | 72 % |
| 11 | Number of HTML Comments Size | -0.11 | 93 | 29 | 76 % | 72 % |
| 12 | Number of Images without ALT Text Size | -0.1 | 39 | 10 | 69 % | 73 % |
| 13 | Number of Forms Technology | -0.1 | 14 | 3 | 71 % | 70 % |
| 14 | Number of H1 Tags Size | -0.1 | 5 | 2 | 81 % | 66 % |
| 15 | Number of H6 Tags Size | -0.09 | 5 | 1 | 10 % | 67 % |