Top SEO Factor data is updated daily for latest "month to date" measurements.
| Name | Correlation | #1 Max | Page 1 Avg | Usage % | Searches % | |
| 1 | Body Tag Size Kilobytes Size | -0.2 | 307 | 86 | 79 % | 92 % |
| 2 | Page Size Kilobytes Size | -0.19 | 411 | 152 | 93 % | 85 % |
| 3 | Number of HTML Tags Size | -0.18 | 2582 | 883 | 94 % | 86 % |
| 4 | Clean Text Kilobytes Size | -0.18 | 29 | 11 | 89 % | 88 % |
| 5 | Unabridged Word Count Size | -0.18 | 4577 | 1635 | 93 % | 88 % |
| 6 | Word Count Size | -0.18 | 3696 | 1278 | 92 % | 86 % |
| 7 | Search Result Summary Length Size | -0.17 | 413 | 157 | 95 % | 84 % |
| 8 | Number of Sentences Size | -0.16 | 202 | 50 | 90 % | 81 % |
| 9 | Number of P Tags Size | -0.16 | 129 | 35 | 87 % | 85 % |
| 10 | Inline JavaScript Kilobytes Size | -0.15 | 158 | 35 | 88 % | 81 % |
| 11 | Number of Heading Tags Size | -0.15 | 66 | 21 | 89 % | 84 % |
| 12 | Number of Questions In Headings Size | -0.15 | 7 | 2 | 34 % | 42 % |
| 13 | Number of Images Size | -0.15 | 141 | 29 | 88 % | 84 % |
| 14 | Number of Questions Size | -0.15 | 17 | 5 | 60 % | 78 % |
| 15 | Number of Images with ALT Text Size | -0.14 | 118 | 19 | 81 % | 84 % |
| 16 | Number of H2 Tags Size | -0.14 | 16 | 7 | 74 % | 85 % |
| 17 | Head Size Kilobytes Size | -0.13 | 120 | 41 | 89 % | 72 % |
| 18 | Number of H3 Tags Size | -0.13 | 56 | 8 | 66 % | 83 % |
| 19 | Inline CSS Kilobytes Size | -0.13 | 91 | 28 | 59 % | 76 % |
| 20 | Number of H4 Tags Size | -0.12 | 31 | 5 | 43 % | 76 % |
| 21 | Number of Images without ALT Text Size | -0.12 | 34 | 10 | 66 % | 74 % |
| 22 | Number of Questions In H2 Tags Size | -0.12 | 3 | 1 | 18 % | 76 % |
| 23 | Number of HREF Lang Tags Size | -0.12 | 22 | 2 | 10 % | 74 % |
| 24 | Number of Questions In H3 Tags Size | -0.12 | 3 | 1 | 13 % | 75 % |
| 25 | Meta Description Length Size | -0.12 | 3815 | 125 | 69 % | 71 % |
| 26 | Word Count in Meta Description Size | -0.12 | 602 | 21 | 69 % | 72 % |
| 27 | Average Words Per Sentence Size | -0.12 | 232 | 42 | 90 % | 70 % |
| 28 | Bytes To First P Tag Size | -0.11 | 84450 | 52816 | 99 % | 55 % |
| 29 | Ahrefs Pages Size | -0.11 | 5 | 2 | 59 % | 16 % |
| 30 | Number of H5 Tags Size | -0.11 | 14 | 2 | 19 % | 72 % |
| 31 | Title Word Count Size | -0.11 | 15 | 8 | 90 % | 56 % |
| 32 | Number of HTML Comments Size | -0.11 | 233 | 28 | 74 % | 75 % |
| 33 | Number of Questions In H4 Tags Size | -0.1 | 2 | 1 | 5 % | 62 % |
| 34 | Search Result Link Text Length Size | -0.1 | 70 | 48 | 94 % | 56 % |
| 35 | Title Length Size | -0.1 | 95 | 54 | 90 % | 56 % |
| 36 | Search Result URL Length Size | -0.1 | 137 | 57 | 93 % | 40 % |
| 37 | Number of H1 Tags Size | -0.09 | 6 | 2 | 80 % | 67 % |
| 38 | Number of H6 Tags Size | -0.09 | 5 | 1 | 9 % | 70 % |
| 39 | Number of Bytes to First Match Size | -0.09 | 9359457 | 573496 | 93 % | 63 % |
| 40 | Search Result Host Length Size | -0.09 | 27 | 19 | 93 % | 55 % |
| 41 | Search Result Domain Length Size | -0.09 | 27 | 18 | 93 % | 56 % |
| 42 | Number of Questions In H1 Tags Size | -0.09 | 1 | 1 | 5 % | 43 % |
| 43 | Number of Questions In H5 Tags Size | -0.09 | 2 | 1 | 2 % | 45 % |
| 44 | Number of Questions In H6 Tags Size | -0.09 | 1 | 1 | 1 % | 28 % |
| 45 | Bing Page Count Size | 0 | 0 | 0 | 0 % | 99 % |
