Top SEO Factor data is updated daily for latest "month to date" measurements.
| Name | Correlation | #1 Max | Page 1 Avg | Usage % | Searches % | |
| 1 | Page Size Kilobytes Size | -0.2 | 381 | 135 | 95 % | 88 % |
| 2 | Body Tag Size Kilobytes Size | -0.2 | 201 | 78 | 82 % | 90 % |
| 3 | Number of HTML Tags Size | -0.2 | 2746 | 910 | 95 % | 86 % |
| 4 | Unabridged Word Count Size | -0.2 | 8440 | 1873 | 94 % | 83 % |
| 5 | Word Count Size | -0.2 | 6395 | 1481 | 94 % | 82 % |
| 6 | Clean Text Kilobytes Size | -0.19 | 70 | 11 | 90 % | 82 % |
| 7 | Number of P Tags Size | -0.18 | 273 | 40 | 89 % | 83 % |
| 8 | Ahrefs Word Count Size | -0.17 | 2920 | 1082 | 49 % | 16 % |
| 9 | Number of Sentences Size | -0.17 | 228 | 42 | 91 % | 81 % |
| 10 | Number of Images with ALT Text Size | -0.17 | 143 | 20 | 82 % | 85 % |
| 11 | Number of Images Size | -0.16 | 182 | 31 | 89 % | 83 % |
| 12 | Number of Heading Tags Size | -0.16 | 145 | 21 | 90 % | 86 % |
| 13 | Inline JavaScript Kilobytes Size | -0.16 | 128 | 28 | 89 % | 85 % |
| 14 | Ahrefs Page Size Size | -0.16 | 66730 | 20580 | 51 % | 17 % |
| 15 | Number of H2 Tags Size | -0.15 | 28 | 7 | 73 % | 87 % |
| 16 | Head Size Kilobytes Size | -0.15 | 137 | 32 | 87 % | 84 % |
| 17 | Number of Questions Size | -0.15 | 32 | 5 | 65 % | 82 % |
| 18 | Search Result Summary Length Size | -0.15 | 358 | 187 | 82 % | 73 % |
| 19 | Inline CSS Kilobytes Size | -0.14 | 131 | 24 | 55 % | 82 % |
| 20 | Number of Questions In Headings Size | -0.14 | 12 | 2 | 34 % | 85 % |
| 21 | Number of H3 Tags Size | -0.14 | 33 | 8 | 67 % | 84 % |
| 22 | Ahrefs Pages Size | -0.14 | 5 | 1 | 53 % | 16 % |
| 23 | Number of Questions In H2 Tags Size | -0.14 | 3 | 1 | 19 % | 80 % |
| 24 | Number of Images without ALT Text Size | -0.12 | 70 | 12 | 70 % | 74 % |
| 25 | Word Count in Meta Description Size | -0.12 | 65 | 24 | 69 % | 79 % |
| 26 | Meta Description Length Size | -0.12 | 375 | 129 | 69 % | 77 % |
| 27 | Number of HTML Comments Size | -0.12 | 158 | 28 | 77 % | 74 % |
| 28 | Average Words Per Sentence Size | -0.12 | 232 | 49 | 90 % | 69 % |
| 29 | Number of HREF Lang Tags Size | -0.12 | 28 | 2 | 12 % | 75 % |
| 30 | Number of Questions In H3 Tags Size | -0.12 | 7 | 1 | 14 % | 78 % |
| 31 | Number of H4 Tags Size | -0.12 | 26 | 5 | 47 % | 79 % |
| 32 | Search Result Link Text Length Size | -0.12 | 119 | 53 | 95 % | 64 % |
| 33 | Number of H5 Tags Size | -0.12 | 95 | 2 | 20 % | 74 % |
| 34 | Number of H1 Tags Size | -0.11 | 5 | 2 | 82 % | 69 % |
| 35 | Title Word Count Size | -0.11 | 20 | 10 | 92 % | 61 % |
| 36 | Title Length Size | -0.11 | 121 | 57 | 92 % | 58 % |
| 37 | Search Result URL Length Size | -0.1 | 96 | 64 | 93 % | 45 % |
| 38 | Number of Questions In H4 Tags Size | -0.1 | 2 | 1 | 6 % | 67 % |
| 39 | Number of H6 Tags Size | -0.1 | 4 | 1 | 9 % | 67 % |
| 40 | Number of Questions In H5 Tags Size | -0.1 | 4 | 1 | 2 % | 48 % |
| 41 | Search Result Domain Length Size | -0.1 | 25 | 18 | 94 % | 50 % |
| 42 | Number of Questions In H6 Tags Size | -0.1 | 1 | 1 | 1 % | 31 % |
| 43 | Search Result Host Length Size | -0.1 | 25 | 18 | 94 % | 50 % |
| 44 | Number of Bytes to First Match Size | -0.09 | 5933823 | 436709 | 94 % | 57 % |
| 45 | Number of Questions In H1 Tags Size | -0.08 | 1 | 1 | 6 % | 49 % |
| 46 | Bing Page Count Size | 0 | 0 | 0 | 0 % | 97 % |
