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 Sentences Size | -0.17 | 596 | 119 | 83 % | 85 % |
| 2 | Unabridged Word Count Size | -0.17 | 8976 | 1815 | 84 % | 85 % |
| 3 | Word Count Size | -0.17 | 6770 | 1453 | 84 % | 84 % |
| 4 | Clean Text Kilobytes Size | -0.17 | 70 | 12 | 80 % | 86 % |
| 5 | Number of Questions Size | -0.16 | 59 | 11 | 66 % | 84 % |
| 6 | Page Size Kilobytes Size | -0.16 | 897 | 257 | 84 % | 84 % |
| 7 | Inline CSS Kilobytes Size | -0.15 | 214 | 64 | 63 % | 83 % |
| 8 | Inline JavaScript Kilobytes Size | -0.15 | 371 | 69 | 81 % | 82 % |
| 9 | Search Result URL Length Size | -0.15 | 108 | 62 | 94 % | 58 % |
| 10 | Search Result Host Length Size | -0.14 | 24 | 18 | 83 % | 75 % |
| 11 | Search Result Domain Length Size | -0.14 | 24 | 18 | 83 % | 76 % |
| 12 | Title Word Count Size | -0.14 | 19 | 8 | 83 % | 71 % |
| 13 | Number of Questions In Headings Size | -0.14 | 9 | 2 | 37 % | 80 % |
| 14 | Word Count in Meta Description Size | -0.14 | 42 | 20 | 67 % | 76 % |
| 15 | Number of Prices Size | -0.14 | 408 | 61 | 68 % | 83 % |
| 16 | Meta Description Length Size | -0.14 | 305 | 124 | 67 % | 77 % |
| 17 | Title Length Size | -0.14 | 73 | 52 | 83 % | 72 % |
| 18 | Average Words Per Sentence Size | -0.13 | 234 | 35 | 80 % | 78 % |
| 19 | Number of Questions In H2 Tags Size | -0.13 | 5 | 1 | 22 % | 77 % |
| 20 | Number of Questions In H3 Tags Size | -0.12 | 5 | 1 | 15 % | 75 % |
| 21 | Search Result Summary Length Size | -0.11 | 238 | 153 | 94 % | 54 % |
| 22 | Search Result Link Text Length Size | -0.11 | 54 | 45 | 95 % | 57 % |
| 23 | Number of Questions In H4 Tags Size | -0.09 | 2 | 1 | 5 % | 67 % |
| 24 | Number of Questions In H1 Tags Size | -0.09 | 1 | 1 | 7 % | 64 % |
| 25 | Bytes To First P Tag Size | -0.08 | 99432 | 66861 | 95 % | 50 % |
| 26 | Number of Bytes to First Match Size | -0.08 | 9917353 | 1442372 | 95 % | 34 % |
| 27 | Number of Questions In H5 Tags Size | -0.06 | 3 | 1 | 1 % | 64 % |
| 28 | Number of Questions In H6 Tags Size | -0.03 | 2 | 0 | 1 % | 66 % |
| 29 | Body Tag Size Kilobytes Size | -0 | 120 | 2 | 1 % | 94 % |
| 30 | Head Size Kilobytes Size | -0 | 72 | 1 | 2 % | 94 % |
| 31 | Ahrefs Has HTML Pages Size | 0 | 0 | 0 | 0 % | 75 % |
| 32 | Ahrefs HTML Pages Size | 0 | 0 | 0 | 0 % | 75 % |
| 33 | Ahrefs Pages Size | 0 | 0 | 0 | 0 % | 75 % |
| 34 | Ahrefs Page Size Size | 0 | 0 | 0 | 0 % | 75 % |
| 35 | Ahrefs Word Count Size | 0 | 0 | 0 | 0 % | 75 % |
| 36 | Bing Page Count Size | 0 | 0 | 0 | 0 % | 94 % |
