Top SEO Factor data is updated daily for latest "month to date" measurements.
| Name | Correlation | #1 Max | Page 1 Avg | Usage % | Searches % | |
| 1 | Search Result Summary Length Size | -0.21 | 360 | 152 | 93 % | 85 % |
| 2 | Page Size Kilobytes Size | -0.17 | 461 | 140 | 96 % | 87 % |
| 3 | Body Tag Size Kilobytes Size | -0.17 | 260 | 79 | 85 % | 90 % |
| 4 | Number of HTML Tags Size | -0.17 | 2719 | 787 | 97 % | 82 % |
| 5 | Unabridged Word Count Size | -0.16 | 5326 | 1691 | 95 % | 82 % |
| 6 | Clean Text Kilobytes Size | -0.16 | 29 | 11 | 92 % | 81 % |
| 7 | Number of Questions Size | -0.16 | 23 | 6 | 66 % | 86 % |
| 8 | Word Count Size | -0.16 | 5031 | 1421 | 95 % | 80 % |
| 9 | Number of Sentences Size | -0.16 | 170 | 58 | 93 % | 82 % |
| 10 | Number of P Tags Size | -0.15 | 156 | 36 | 91 % | 85 % |
| 11 | Number of Prices Size | -0.15 | 112 | 28 | 70 % | 23 % |
| 12 | Number of Heading Tags Size | -0.15 | 48 | 21 | 92 % | 87 % |
| 13 | Inline JavaScript Kilobytes Size | -0.15 | 129 | 29 | 90 % | 84 % |
| 14 | Head Size Kilobytes Size | -0.14 | 127 | 44 | 91 % | 80 % |
| 15 | Number of Questions In Headings Size | -0.14 | 7 | 2 | 39 % | 35 % |
| 16 | Inline CSS Kilobytes Size | -0.14 | 102 | 32 | 62 % | 81 % |
| 17 | Number of Images Size | -0.14 | 84 | 24 | 90 % | 82 % |
| 18 | Number of Images with ALT Text Size | -0.14 | 65 | 16 | 84 % | 84 % |
| 19 | Number of H3 Tags Size | -0.14 | 20 | 8 | 70 % | 85 % |
| 20 | Number of HREF Lang Tags Size | -0.14 | 16 | 2 | 10 % | 74 % |
| 21 | Number of Questions In H3 Tags Size | -0.13 | 4 | 1 | 16 % | 84 % |
| 22 | Number of H2 Tags Size | -0.13 | 15 | 7 | 79 % | 85 % |
| 23 | Number of Questions In H2 Tags Size | -0.13 | 4 | 1 | 23 % | 83 % |
| 24 | Number of Bytes to First Match Size | -0.13 | 8640065 | 473142 | 97 % | 63 % |
| 25 | Search Result URL Length Size | -0.13 | 95 | 56 | 97 % | 48 % |
| 26 | Bytes To First P Tag Size | -0.12 | 79875 | 53057 | 98 % | 68 % |
| 27 | Word Count in Meta Description Size | -0.12 | 83 | 21 | 72 % | 70 % |
| 28 | Meta Description Length Size | -0.12 | 507 | 125 | 72 % | 70 % |
| 29 | Search Result Link Text Length Size | -0.11 | 58 | 50 | 97 % | 59 % |
| 30 | Number of H4 Tags Size | -0.11 | 17 | 5 | 46 % | 79 % |
| 31 | Ahrefs Pages Size | -0.11 | 6 | 2 | 47 % | 17 % |
| 32 | Number of Images without ALT Text Size | -0.11 | 39 | 9 | 66 % | 72 % |
| 33 | Number of HTML Comments Size | -0.11 | 559 | 27 | 77 % | 75 % |
| 34 | Number of H5 Tags Size | -0.11 | 8 | 2 | 20 % | 76 % |
| 35 | Number of Questions In H4 Tags Size | -0.11 | 2 | 1 | 7 % | 69 % |
| 36 | Average Words Per Sentence Size | -0.11 | 207 | 34 | 93 % | 68 % |
| 37 | Title Word Count Size | -0.11 | 14 | 9 | 93 % | 63 % |
| 38 | Ahrefs Word Count Size | -0.1 | 4055 | 691 | 35 % | 13 % |
| 39 | Search Result Host Length Size | -0.1 | 25 | 19 | 97 % | 53 % |
| 40 | Search Result Domain Length Size | -0.1 | 25 | 19 | 96 % | 53 % |
| 41 | Title Length Size | -0.1 | 85 | 56 | 93 % | 60 % |
| 42 | Ahrefs Page Size Size | -0.09 | 51878 | 13567 | 35 % | 13 % |
| 43 | Number of Questions In H5 Tags Size | -0.09 | 1 | 1 | 2 % | 53 % |
| 44 | Number of Questions In H1 Tags Size | -0.09 | 1 | 1 | 8 % | 53 % |
| 45 | Number of H1 Tags Size | -0.08 | 4 | 2 | 84 % | 69 % |
| 46 | Number of H6 Tags Size | -0.08 | 7 | 1 | 9 % | 71 % |
| 47 | Number of Schema Products Size | -0.08 | 3 | 1 | 1 % | 13 % |
| 48 | Number of Questions In H6 Tags Size | -0.06 | 1 | 1 | 1 % | 32 % |
| 49 | Bing Page Count Size | 0 | 0 | 0 | 0 % | 99 % |
