[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]
[ Wappalyzer API ]
SEO Factor ClassSize ( 54484 )Relevancy ( 54123 ) Other ( 32990 ) Local ( 9000 ) Technology ( 1599 ) Authority ( 163 ) Pay Per Click ( 29 ) Diversity ( 15 ) Trust ( 15 ) Easy ( 3 ) Performance ( 1 ) This factor is measured within the schema markup of the web page. ( 1 ) |
SEO Factor TypeSize ( 54480 )Keywords ( 42020 ) Schema ( 32936 ) Local ( 9001 ) LSI ( 8513 ) Entities ( 3568 ) Other ( 1705 ) Backlinks ( 72 ) Social ( 58 ) Page Links ( 29 ) Structure ( 23 ) Meta ( 14 ) On Page ( 3 ) This factor does not have an applicable match type. ( 1 ) |
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 Distinct Entities Used Diversity | -0.31 | 64 | 28 | 88 % | 31 % |
| 2 | Variations in HTML Tags Relevancy | -0.25 | 988 | 170 | 88 % | 95 % |
| 3 | Number of Factors Used Diversity | -0.25 | 197 | 128 | 95 % | 90 % |
| 4 | Variations in Body Tags Relevancy | -0.25 | 540 | 148 | 82 % | 95 % |
| 5 | Variations in Div Tags Relevancy | -0.24 | 616 | 123 | 87 % | 94 % |
| 6 | Term Frequency Relevancy | -0.24 | 8 | 6 | 88 % | 95 % |
| 7 | Variations in A Tags Relevancy | -0.23 | 159 | 32 | 80 % | 94 % |
| 8 | Variations in H1, H2, and H3 Tags Relevancy | -0.23 | 37 | 7 | 79 % | 93 % |
| 9 | Variations in H1-H6 Tags Relevancy | -0.22 | 42 | 9 | 80 % | 94 % |
| 10 | Exact Matches in Body Tag Relevancy | -0.22 | 202 | 21 | 47 % | 92 % |
| 11 | Variations in LI Tags Relevancy | -0.22 | 105 | 21 | 73 % | 93 % |
| 12 | Exact Matches in the HTML Tag Relevancy | -0.22 | 205 | 17 | 48 % | 92 % |
| 13 | Variations in A Tag HREF Attributes Relevancy | -0.22 | 285 | 48 | 73 % | 94 % |
| 14 | Variations in H1 and H2 Tags Relevancy | -0.22 | 13 | 5 | 76 % | 91 % |
| 15 | Variations in Search Result Display URL Relevancy | -0.21 | 7 | 2 | 87 % | 78 % |
| 16 | Variations in Search Result Link Text Relevancy | -0.21 | 7 | 2 | 87 % | 78 % |
| 17 | Variations in P Tags Relevancy | -0.21 | 168 | 32 | 76 % | 91 % |
| 18 | Entities in H2 Tags | -0.21 | 28 | 6 | 55 % | 31 % |
| 19 | LSI Words in Sentences Relevancy | -0.21 | 4434 | 801 | 78 % | 93 % |
| 20 | Variations in Search Result URL Path Relevancy | -0.21 | 5 | 2 | 68 % | 72 % |
| 21 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.21 | 32 | 2 | 51 % | 90 % |
| 22 | Leading Variations in H1-H6 Tags Relevancy | -0.21 | 38 | 3 | 54 % | 91 % |
| 23 | Page Size Kilobytes Size | -0.2 | 381 | 135 | 95 % | 88 % |
| 24 | Search Result Publish Date | -0.2 | 2010556151 | 1735583004 | 83 % | 33 % |
| 25 | Variations in Search Result Document File Name Relevancy | -0.2 | 5 | 2 | 64 % | 67 % |
| 26 | Variations in the Title Tag Relevancy | -0.2 | 7 | 2 | 80 % | 76 % |
| 27 | Body Tag Size Kilobytes Size | -0.2 | 201 | 78 | 82 % | 90 % |
| 28 | Number of HTML Tags Size | -0.2 | 2746 | 910 | 95 % | 86 % |
| 29 | Keywords in pages top 10 most used phrases | -0.2 | 5 | 2 | 65 % | 85 % |
| 30 | Ahrefs Referring IP Addresses Authority | -0.2 | 1045 | 74 | 43 % | 17 % |
| 31 | Entities in Title Tag Relevancy | -0.2 | 7 | 3 | 76 % | 28 % |
| 32 | Unabridged Word Count Size | -0.2 | 8440 | 1873 | 94 % | 83 % |
| 33 | Ahrefs Referring Domains Authority | -0.2 | 1181 | 90 | 43 % | 17 % |
| 34 | Variations in ALT Attributes Relevancy | -0.2 | 57 | 9 | 58 % | 91 % |
| 35 | Entities in H3 Tags | -0.2 | 28 | 6 | 44 % | 30 % |
| 36 | Ahrefs Referring Class C Addresses Authority | -0.2 | 689 | 54 | 43 % | 17 % |
| 37 | Exact Matches in H1-H6 Tags Relevancy | -0.2 | 11 | 2 | 38 % | 90 % |
| 38 | Word Count Size | -0.2 | 6395 | 1481 | 94 % | 82 % |
| 39 | Variations in H2 Tags Relevancy | -0.2 | 12 | 3 | 48 % | 91 % |
| 40 | Variations in Sentences Relevancy | -0.19 | 111 | 18 | 74 % | 89 % |
| 41 | Variations in Search Result URL Relevancy | -0.19 | 5 | 2 | 65 % | 78 % |
| 42 | Clean Text Kilobytes Size | -0.19 | 70 | 11 | 90 % | 82 % |
| 43 | Ahrefs Rank Authority | -0.19 | 38 | 14 | 79 % | 15 % |
| 44 | Ahrefs Backlinks Authority | -0.19 | 5788182 | 47790 | 44 % | 17 % |
| 45 | Ahrefs Referring Pages Authority | -0.19 | 5788182 | 47790 | 44 % | 17 % |
| 46 | Ahrefs Text Backlinks Authority | -0.19 | 5788178 | 47528 | 43 % | 17 % |
| 47 | Variations in Span Tags Relevancy | -0.19 | 98 | 12 | 62 % | 91 % |
| 48 | Leading Variations in Title Tag Relevancy | -0.19 | 1 | 1 | 42 % | 78 % |
| 49 | Variations in Script Tags Relevancy | -0.19 | 207 | 29 | 62 % | 91 % |
| 50 | Number of HTTPS Links Authority | -0.18 | 499 | 154 | 88 % | 86 % |
| 51 | Ahrefs NoFollow Backlinks Authority | -0.18 | 32088 | 1166 | 36 % | 16 % |
| 52 | Variations in Absolute URLs Relevancy | -0.18 | 297 | 48 | 67 % | 91 % |
| 53 | LSI Words in Title Tag Relevancy | -0.18 | 25 | 7 | 74 % | 87 % |
| 54 | Variations in Meta Description Relevancy | -0.18 | 9 | 2 | 60 % | 85 % |
| 55 | Leading Variations in H1 Tags Relevancy | -0.18 | 2 | 1 | 36 % | 81 % |
| 56 | Number of P Tags Size | -0.18 | 273 | 40 | 89 % | 83 % |
| 57 | Exact Matches in A Tags Relevancy | -0.18 | 44 | 5 | 34 % | 89 % |
| 58 | Keywords in pages top 5 most used phrases | -0.18 | 3 | 1 | 55 % | 86 % |
| 59 | Ahrefs Dofollow Backlinks Authority | -0.17 | 5787980 | 47806 | 37 % | 16 % |
| 60 | Ahrefs Word Count Size | -0.17 | 2920 | 1082 | 49 % | 16 % |
| 61 | Variations in First 100 Words Relevancy | -0.17 | 25 | 7 | 67 % | 79 % |
| 62 | Number of Links Authority | -0.17 | 504 | 167 | 91 % | 83 % |
| 63 | Variations in H1 Tags Relevancy | -0.17 | 5 | 2 | 67 % | 78 % |
| 64 | Number of Internal Links Authority | -0.17 | 491 | 150 | 90 % | 84 % |
| 65 | Number of Sentences Size | -0.17 | 228 | 42 | 91 % | 81 % |
| 66 | Variations in the Canonical URL Relevancy | -0.17 | 5 | 2 | 51 % | 79 % |
| 67 | TF/IDF Relevancy | -0.17 | 1 | 1 | 70 % | 80 % |
| 68 | Ahrefs Domain Rating Authority | -0.17 | 92 | 45 | 77 % | 15 % |
| 69 | Variations in H3 Tags Relevancy | -0.17 | 34 | 3 | 37 % | 89 % |
| 70 | Number of DoFollow Links Authority | -0.17 | 500 | 160 | 91 % | 83 % |
| 71 | Variations in Strong Tags Relevancy | -0.17 | 27 | 4 | 38 % | 83 % |
| 72 | Number of Images with ALT Text Size | -0.17 | 143 | 20 | 82 % | 85 % |
| 73 | Variations in Nav Tags Relevancy | -0.17 | 138 | 16 | 44 % | 89 % |
| 74 | Ahrefs Has Text Backlinks Authority | -0.17 | 1 | 1 | 42 % | 16 % |
| 75 | Ahrefs Has NoFollow Backlinks Authority | -0.17 | 1 | 1 | 35 % | 16 % |
| 76 | Exact Matches in Title Tag Relevancy | -0.16 | 3 | 1 | 37 % | 82 % |
| 77 | LSI Words in H2 Tags Relevancy | -0.16 | 133 | 21 | 58 % | 92 % |
| 78 | Ahrefs Has Backlinks Authority | -0.16 | 1 | 1 | 43 % | 16 % |
| 79 | Leading Variations in H2 Tags Relevancy | -0.16 | 20 | 1 | 23 % | 87 % |
| 80 | Title Tag Has Entities Relevancy | -0.16 | 1 | 1 | 76 % | 24 % |
| 81 | Number of Images Size | -0.16 | 182 | 31 | 89 % | 83 % |
| 82 | Variations in TITLE Attributes Relevancy | -0.16 | 92 | 10 | 44 % | 86 % |
| 83 | Entities in Meta Description Tag Relevancy | -0.16 | 9 | 3 | 62 % | 28 % |
| 84 | Number of Heading Tags Size | -0.16 | 145 | 21 | 90 % | 86 % |
| 85 | Keywords in pages top 3 most used phrases | -0.16 | 2 | 1 | 44 % | 84 % |
| 86 | Variations Making Whole LI Tags Relevancy | -0.16 | 7 | 1 | 28 % | 82 % |
| 87 | Entities in H1 Tags | -0.16 | 7 | 2 | 63 % | 28 % |
| 88 | Inline JavaScript Kilobytes Size | -0.16 | 128 | 28 | 89 % | 85 % |
| 89 | Search Result Uses HTTPS Other | -0.16 | 1 | 1 | 85 % | 78 % |
| 90 | Variations making whole A Tags Relevancy | -0.16 | 9 | 2 | 34 % | 85 % |
| 91 | Ahrefs Internal Links Authority | -0.16 | 409 | 70 | 53 % | 17 % |
| 92 | Ahrefs Page Size Size | -0.16 | 66730 | 20580 | 51 % | 17 % |
| 93 | Variations in the last 100 words Relevancy | -0.16 | 13 | 4 | 56 % | 80 % |
| 94 | Variations Making Whole Span Tags Relevancy | -0.16 | 9 | 1 | 21 % | 84 % |
| 95 | Exact Matches in Sentences Relevancy | -0.15 | 24 | 3 | 27 % | 89 % |
| 96 | Ahrefs Has Dofollow Backlinks Authority | -0.15 | 1 | 1 | 36 % | 16 % |
| 97 | Number of H2 Tags Size | -0.15 | 28 | 7 | 73 % | 87 % |
| 98 | DomDetailer Majestic CF Authority | -0.15 | 64 | 30 | 70 % | 15 % |
| 99 | Number of Absolute URLs Authority | -0.15 | 970 | 144 | 92 % | 81 % |
| 100 | Entities in H4 Tags | -0.15 | 38 | 3 | 26 % | 29 % |
| 101 | Exact Matches in H2 Tags Relevancy | -0.15 | 5 | 1 | 18 % | 87 % |
| 102 | LSI Words in Meta Description Tag Relevancy | -0.15 | 49 | 13 | 58 % | 90 % |
| 103 | Head Size Kilobytes Size | -0.15 | 137 | 32 | 87 % | 84 % |
| 104 | DomDetailer Moz PA Authority | -0.15 | 66 | 33 | 71 % | 16 % |
| 105 | Variations making whole H1-H6 Tags Relevancy | -0.15 | 2 | 1 | 17 % | 81 % |
| 106 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.15 | 2 | 1 | 15 % | 79 % |
| 107 | Variations in OpenGraph Title Relevancy | -0.15 | 3 | 1 | 55 % | 73 % |
| 108 | DomDetailer Moz DA Authority | -0.15 | 78 | 32 | 70 % | 15 % |
| 109 | Ahrefs Linked Root Domains Authority | -0.15 | 17 | 6 | 53 % | 17 % |
| 110 | Variations in Search Result Summary Relevancy | -0.15 | 6 | 2 | 61 % | 75 % |
| 111 | Has Entities in H1 Tags Relevancy | -0.15 | 1 | 1 | 65 % | 27 % |
| 112 | DomDetailer Majestic IPs Authority | -0.15 | 232409 | 30928 | 71 % | 16 % |
| 113 | DomDetailer Majestic Referring Domains Authority | -0.15 | 1313712 | 167578 | 71 % | 16 % |
| 114 | Number of Questions Size | -0.15 | 32 | 5 | 65 % | 82 % |
| 115 | Number of External Links Authority | -0.15 | 139 | 18 | 84 % | 71 % |
| 116 | Load Time Milliseconds Performance | -0.15 | 22044 | 3131 | 95 % | 67 % |
| 117 | DomDetailer Majestic Referring Subnets Authority | -0.15 | 63478 | 8692 | 71 % | 16 % |
| 118 | Search Result Summary Length Size | -0.15 | 358 | 187 | 82 % | 73 % |
| 119 | Ahrefs Images Relevancy | -0.14 | 68 | 18 | 48 % | 16 % |
| 120 | Variations in Section Tags Relevancy | -0.14 | 77 | 16 | 35 % | 85 % |
| 121 | Inline CSS Kilobytes Size | -0.14 | 131 | 24 | 55 % | 82 % |
| 122 | Exact Matches in H1 Tags Relevancy | -0.14 | 2 | 1 | 28 % | 81 % |
| 123 | LSI Words in H1 Tags Relevancy | -0.14 | 41 | 6 | 64 % | 84 % |
| 124 | Number of Questions In Headings Size | -0.14 | 12 | 2 | 34 % | 85 % |
| 125 | Variations in Footer Tags Relevancy | -0.14 | 37 | 6 | 33 % | 82 % |
| 126 | Variations in Main Tags Relevancy | -0.14 | 250 | 39 | 26 % | 81 % |
| 127 | Variations in OpenGraph Description Relevancy | -0.14 | 5 | 2 | 49 % | 80 % |
| 128 | Number of H3 Tags Size | -0.14 | 33 | 8 | 67 % | 84 % |
| 129 | Exact Matches in Meta Description Relevancy | -0.14 | 3 | 1 | 25 % | 84 % |
| 130 | Variations in I Tags Relevancy | -0.14 | 41 | 3 | 29 % | 85 % |
| 131 | DomDetailer Majestic Links Authority | -0.14 | 52811365 | 261417 | 71 % | 16 % |
| 132 | Has Entities in H2 Tags Relevancy | -0.14 | 1 | 1 | 56 % | 29 % |
| 133 | Ahrefs Has Linked Root Domains Authority | -0.14 | 1 | 1 | 52 % | 17 % |
| 134 | Ahrefs Has Images Other | -0.14 | 1 | 1 | 46 % | 14 % |
| 135 | Ahrefs External Links Authority | -0.14 | 165 | 14 | 49 % | 17 % |
| 136 | DomDetailer Moz Links Authority | -0.14 | 60724265 | 10724567 | 70 % | 15 % |
| 137 | LSI Words in H3 Tags Relevancy | -0.14 | 178 | 24 | 52 % | 90 % |
| 138 | Leading Variations in H3 Tags Relevancy | -0.14 | 15 | 1 | 18 % | 85 % |
| 139 | Ahrefs Has Internal Links Authority | -0.14 | 1 | 1 | 52 % | 17 % |
| 140 | DomDetailer Majestic TF Authority | -0.14 | 63 | 22 | 66 % | 15 % |
| 141 | Ahrefs Pages Size | -0.14 | 5 | 1 | 53 % | 16 % |
| 142 | Ahrefs Has External Links Authority | -0.14 | 1 | 1 | 49 % | 16 % |
| 143 | Number of Nofollow Links Authority | -0.14 | 153 | 8 | 39 % | 76 % |
| 144 | Has Entities in H3 Tags Relevancy | -0.14 | 1 | 1 | 45 % | 28 % |
| 145 | Number of Questions In H2 Tags Size | -0.14 | 3 | 1 | 19 % | 80 % |
| 146 | Number of DoFollow External Links Authority | -0.14 | 131 | 15 | 82 % | 72 % |
| 147 | Number of Forms Technology | -0.13 | 14 | 3 | 72 % | 76 % |
| 148 | DomDetailer Moz Rank Authority | -0.13 | 8 | 4 | 70 % | 15 % |
| 149 | Variations making whole H1 Tags Relevancy | -0.13 | 1 | 1 | 10 % | 78 % |
| 150 | DomDetailer Facebook Shares Authority | -0.13 | 69505650 | 6566157 | 66 % | 16 % |
| 151 | Variations in H4-H6 Tags Relevancy | -0.13 | 18 | 2 | 23 % | 82 % |
| 152 | Percentage of DoFollow Internal Links Authority | -0.13 | 94 | 81 | 89 % | 70 % |
| 153 | Headings Has Question Other | -0.13 | 1 | 1 | 34 % | 80 % |
| 154 | Variations in Article Tags Relevancy | -0.13 | 145 | 20 | 30 % | 69 % |
| 155 | Number of NoFollow External Links Authority | -0.13 | 38 | 3 | 26 % | 75 % |
| 156 | Variations in H4 Tags Relevancy | -0.13 | 17 | 2 | 18 % | 80 % |
| 157 | Search Result Number of Dirs in Path Other | -0.13 | 5 | 2 | 84 % | 62 % |
| 158 | Variations in Search Result URL Domain Name Relevancy | -0.13 | 1 | 1 | 7 % | 48 % |
| 159 | Leading Variations in Meta Description Relevancy | -0.13 | 1 | 1 | 15 % | 72 % |
| 160 | Percentage of NoFollow Links Authority | -0.13 | 26 | 5 | 38 % | 70 % |
| 161 | Has Meta Description Relevancy | -0.13 | 1 | 1 | 71 % | 74 % |
| 162 | Has Privacy Policy Trust | -0.13 | 1 | 1 | 48 % | 72 % |
| 163 | Meta Description Tag Has Entities Relevancy | -0.13 | 1 | 1 | 63 % | 25 % |
| 164 | Has FavIcon Technology | -0.12 | 1 | 1 | 75 % | 66 % |
| 165 | Variations in Class Attributes Relevancy | -0.12 | 358 | 7 | 26 % | 83 % |
| 166 | Variations in ID Attributes Relevancy | -0.12 | 16 | 1 | 12 % | 83 % |
| 167 | Number of Images without ALT Text Size | -0.12 | 70 | 12 | 70 % | 74 % |
| 168 | Word Count in Meta Description Size | -0.12 | 65 | 24 | 69 % | 79 % |
| 169 | Variations in Em Tags Relevancy | -0.12 | 11 | 2 | 15 % | 73 % |
| 170 | Has Canonical URL Authority | -0.12 | 1 | 1 | 73 % | 72 % |
| 171 | Variations in Meta Keywords Relevancy | -0.12 | 19 | 2 | 20 % | 72 % |
| 172 | Meta Description Length Size | -0.12 | 375 | 129 | 69 % | 77 % |
| 173 | Number of HTML Comments Size | -0.12 | 158 | 28 | 77 % | 74 % |
| 174 | Variations Making Whole Strong Tags Relevancy | -0.12 | 3 | 1 | 9 % | 82 % |
| 175 | Number of Social Accounts Authority | -0.12 | 6 | 2 | 45 % | 70 % |
| 176 | Average Words Per Sentence Size | -0.12 | 232 | 49 | 90 % | 69 % |
| 177 | Number of Twitter Accounts Authority | -0.12 | 4 | 1 | 36 % | 63 % |
| 178 | Number of HREF Lang Tags Size | -0.12 | 28 | 2 | 12 % | 75 % |
| 179 | Exact Matches in H3 Tags Relevancy | -0.12 | 7 | 1 | 11 % | 85 % |
| 180 | Number of JavaScript Includes Technology | -0.12 | 23 | 13 | 85 % | 66 % |
| 181 | Variations in B Tags Relevancy | -0.12 | 30 | 2 | 14 % | 78 % |
| 182 | Has Entities in H4 Tags Relevancy | -0.12 | 1 | 1 | 27 % | 26 % |
| 183 | Has Contact Page Trust | -0.12 | 1 | 1 | 52 % | 60 % |
| 184 | Number of Questions In H3 Tags Size | -0.12 | 7 | 1 | 14 % | 78 % |
| 185 | Flesch Kincaid Reading Grade Level Other | -0.12 | 7 | 2 | 81 % | 62 % |
| 186 | Number of US Phone Numbers Trust | -0.12 | 66 | 5 | 31 % | 75 % |
| 187 | Number of H4 Tags Size | -0.12 | 26 | 5 | 47 % | 79 % |
| 188 | Search Result Link Text Length Size | -0.12 | 119 | 53 | 95 % | 64 % |
| 189 | Number of Instagram Pages Authority | -0.12 | 7 | 1 | 27 % | 71 % |
| 190 | Number of Social Pages Authority | -0.12 | 6 | 1 | 40 % | 71 % |
| 191 | Title Has Sales Words Other | -0.12 | 1 | 1 | 14 % | 65 % |
| 192 | Percentage of NoFollow External Links Authority | -0.12 | 17 | 3 | 25 % | 69 % |
| 193 | Variations in Value Attributes Relevancy | -0.12 | 14 | 2 | 14 % | 75 % |
| 194 | Title Has Sentiment Words Other | -0.12 | 1 | 1 | 15 % | 66 % |
| 195 | Number of H5 Tags Size | -0.12 | 95 | 2 | 20 % | 74 % |
| 196 | Ahrefs Image Backlinks | -0.11 | 1468859 | 13728 | 17 % | 14 % |
| 197 | Percentage of NoFollow Internal Links Authority | -0.11 | 20 | 3 | 28 % | 69 % |
| 198 | Variations in Meta Twitter Description Relevancy | -0.11 | 3 | 1 | 23 % | 70 % |
| 199 | Leading Variations in H4-H6 Tags Relevancy | -0.11 | 11 | 1 | 11 % | 78 % |
| 200 | LSI Words in H4 Tags Relevancy | -0.11 | 65 | 11 | 35 % | 83 % |