[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]
[ Wappalyzer API ]
SEO Factor ClassSize ( 54484 )Relevancy ( 54123 ) Other ( 32986 ) Local ( 9000 ) Technology ( 1599 ) Authority ( 163 ) Pay Per Click ( 29 ) Trust ( 15 ) Diversity ( 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 ( 32932 ) 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 | -0.39 | 65 | 30 | 85 % | 47 % |
| 2 | Variations in HTML Tags Relevancy | -0.3 | 809 | 172 | 87 % | 95 % |
| 3 | Term Frequency Relevancy | -0.29 | 8 | 6 | 87 % | 94 % |
| 4 | Entities in Title Tag Relevancy | -0.29 | 9 | 3 | 71 % | 46 % |
| 5 | Variations in Div Tags Relevancy | -0.28 | 602 | 124 | 85 % | 94 % |
| 6 | Entities in H2 Tags | -0.28 | 180 | 21 | 48 % | 47 % |
| 7 | Variations in A Tags Relevancy | -0.28 | 165 | 32 | 78 % | 94 % |
| 8 | Variations in H1-H6 Tags Relevancy | -0.27 | 66 | 11 | 77 % | 93 % |
| 9 | Variations in H1, H2, and H3 Tags Relevancy | -0.27 | 65 | 9 | 76 % | 93 % |
| 10 | Variations in H1 and H2 Tags Relevancy | -0.27 | 64 | 6 | 73 % | 92 % |
| 11 | Variations in Search Result Display URL Relevancy | -0.26 | 4 | 2 | 82 % | 81 % |
| 12 | Variations in Search Result Link Text Relevancy | -0.26 | 4 | 2 | 82 % | 81 % |
| 13 | Variations in Body Tags Relevancy | -0.26 | 501 | 143 | 78 % | 94 % |
| 14 | Variations in A Tag HREF Attributes Relevancy | -0.25 | 521 | 52 | 68 % | 94 % |
| 15 | Number of Factors Used Diversity | -0.25 | 197 | 131 | 93 % | 89 % |
| 16 | Keywords in pages top 10 most used phrases | -0.25 | 5 | 2 | 62 % | 88 % |
| 17 | Variations in Span Tags Relevancy | -0.24 | 80 | 14 | 59 % | 91 % |
| 18 | Variations in Sentences Relevancy | -0.24 | 104 | 19 | 73 % | 92 % |
| 19 | Variations in ALT Attributes Relevancy | -0.24 | 80 | 13 | 55 % | 91 % |
| 20 | Variations in the Title Tag Relevancy | -0.24 | 4 | 2 | 77 % | 82 % |
| 21 | LSI Words in Sentences Relevancy | -0.24 | 3250 | 532 | 75 % | 96 % |
| 22 | Page Size Kilobytes Size | -0.24 | 705 | 169 | 93 % | 89 % |
| 23 | Number of HTML Tags Size | -0.24 | 2517 | 993 | 94 % | 87 % |
| 24 | Ahrefs Rank Authority | -0.23 | 55 | 16 | 86 % | 19 % |
| 25 | Title Tag Has Entities Relevancy | -0.23 | 1 | 1 | 71 % | 41 % |
| 26 | Variations in LI Tags Relevancy | -0.23 | 97 | 20 | 69 % | 94 % |
| 27 | Variations in Search Result URL Path Relevancy | -0.23 | 5 | 2 | 61 % | 80 % |
| 28 | Variations in Search Result URL Relevancy | -0.23 | 5 | 2 | 58 % | 84 % |
| 29 | TF/IDF Relevancy | -0.23 | 1 | 1 | 66 % | 82 % |
| 30 | Variations in P Tags Relevancy | -0.23 | 197 | 34 | 74 % | 92 % |
| 31 | Ahrefs Referring IP Addresses Authority | -0.22 | 1672 | 62 | 55 % | 24 % |
| 32 | Ahrefs Referring Class C Addresses Authority | -0.22 | 1150 | 49 | 55 % | 24 % |
| 33 | Keywords in pages top 5 most used phrases | -0.22 | 4 | 1 | 52 % | 89 % |
| 34 | Ahrefs Referring Domains Authority | -0.22 | 2118 | 72 | 55 % | 24 % |
| 35 | Number of Internal Links Authority | -0.22 | 503 | 143 | 88 % | 80 % |
| 36 | Variations in H2 Tags Relevancy | -0.22 | 64 | 5 | 46 % | 91 % |
| 37 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.22 | 15 | 2 | 47 % | 88 % |
| 38 | Leading Variations in H1-H6 Tags Relevancy | -0.22 | 16 | 3 | 50 % | 89 % |
| 39 | Number of DoFollow Links Authority | -0.22 | 512 | 154 | 88 % | 78 % |
| 40 | Has Entities in H2 Tags Relevancy | -0.22 | 1 | 1 | 50 % | 43 % |
| 41 | Search Result Publish Date | -0.22 | 2000263841 | 1792077771 | 85 % | 33 % |
| 42 | Ahrefs Domain Rating Authority | -0.21 | 83 | 48 | 83 % | 19 % |
| 43 | Ahrefs Backlinks Authority | -0.21 | 373165 | 5216 | 56 % | 24 % |
| 44 | Ahrefs Referring Pages Authority | -0.21 | 373165 | 5216 | 56 % | 24 % |
| 45 | Ahrefs Text Backlinks Authority | -0.21 | 373077 | 5195 | 55 % | 24 % |
| 46 | Body Tag Size Kilobytes Size | -0.21 | 427 | 96 | 78 % | 90 % |
| 47 | Entities in H1 Tags | -0.21 | 9 | 3 | 55 % | 44 % |
| 48 | Number of Links Authority | -0.21 | 526 | 162 | 88 % | 81 % |
| 49 | LSI Words in Title Tag Relevancy | -0.21 | 18 | 6 | 71 % | 92 % |
| 50 | Number of HTTPS Links Authority | -0.21 | 523 | 151 | 86 % | 86 % |
| 51 | Variations in Search Result Document File Name Relevancy | -0.21 | 4 | 2 | 57 % | 71 % |
| 52 | Entities in Meta Description Tag Relevancy | -0.21 | 9 | 3 | 54 % | 43 % |
| 53 | Variations in Script Tags Relevancy | -0.21 | 204 | 28 | 62 % | 94 % |
| 54 | Number of Sentences Size | -0.2 | 181 | 46 | 88 % | 87 % |
| 55 | Ahrefs NoFollow Backlinks Authority | -0.2 | 20079 | 459 | 46 % | 23 % |
| 56 | Has Entities in H1 Tags Relevancy | -0.2 | 1 | 1 | 58 % | 39 % |
| 57 | Ahrefs Dofollow Backlinks Authority | -0.2 | 366144 | 4809 | 47 % | 23 % |
| 58 | Clean Text Kilobytes Size | -0.2 | 38 | 12 | 88 % | 88 % |
| 59 | Load Time Milliseconds Performance | -0.2 | 46962 | 4376 | 93 % | 70 % |
| 60 | Variations in H1 Tags Relevancy | -0.2 | 3 | 2 | 63 % | 79 % |
| 61 | Inline JavaScript Kilobytes Size | -0.2 | 302 | 41 | 88 % | 86 % |
| 62 | Keywords in pages top 3 most used phrases | -0.2 | 3 | 1 | 42 % | 88 % |
| 63 | Variations in I Tags Relevancy | -0.2 | 23 | 4 | 29 % | 85 % |
| 64 | Unabridged Word Count Size | -0.2 | 6989 | 1902 | 92 % | 89 % |
| 65 | Number of Images with ALT Text Size | -0.19 | 64 | 20 | 81 % | 85 % |
| 66 | Exact Matches in Body Tag Relevancy | -0.19 | 221 | 13 | 39 % | 94 % |
| 67 | Variations in Absolute URLs Relevancy | -0.19 | 266 | 37 | 62 % | 90 % |
| 68 | Ahrefs Has Dofollow Backlinks Authority | -0.19 | 1 | 1 | 43 % | 22 % |
| 69 | Variations in Meta Description Relevancy | -0.19 | 5 | 2 | 58 % | 85 % |
| 70 | Word Count Size | -0.19 | 5147 | 1501 | 92 % | 88 % |
| 71 | Number of Images Size | -0.19 | 87 | 32 | 88 % | 85 % |
| 72 | Exact Matches in the HTML Tag Relevancy | -0.19 | 230 | 11 | 40 % | 93 % |
| 73 | Number of H2 Tags Size | -0.19 | 26 | 7 | 72 % | 86 % |
| 74 | Ahrefs Has Text Backlinks Authority | -0.19 | 1 | 1 | 51 % | 23 % |
| 75 | Has US Phone Number Trust | -0.18 | 1 | 1 | 35 % | 62 % |
| 76 | Variations in TITLE Attributes Relevancy | -0.18 | 124 | 14 | 41 % | 87 % |
| 77 | Number of Forms Technology | -0.18 | 12 | 3 | 70 % | 74 % |
| 78 | Leading Variations in H2 Tags Relevancy | -0.18 | 13 | 1 | 21 % | 85 % |
| 79 | LSI Words in H2 Tags Relevancy | -0.18 | 753 | 36 | 53 % | 94 % |
| 80 | Ahrefs Has NoFollow Backlinks Authority | -0.18 | 1 | 1 | 43 % | 23 % |
| 81 | Entities in H3 Tags | -0.18 | 30 | 5 | 41 % | 39 % |
| 82 | Ahrefs Has Backlinks Authority | -0.18 | 1 | 1 | 52 % | 23 % |
| 83 | Variations in the Canonical URL Relevancy | -0.18 | 4 | 2 | 47 % | 81 % |
| 84 | Variations in First 100 Words Relevancy | -0.18 | 29 | 7 | 64 % | 83 % |
| 85 | Variations Making Whole Span Tags Relevancy | -0.18 | 8 | 1 | 20 % | 84 % |
| 86 | Number of Absolute URLs Authority | -0.18 | 427 | 147 | 91 % | 81 % |
| 87 | Number of Heading Tags Size | -0.17 | 48 | 23 | 89 % | 85 % |
| 88 | Leading Variations in H1 Tags Relevancy | -0.17 | 2 | 1 | 32 % | 76 % |
| 89 | Variations Making Whole LI Tags Relevancy | -0.17 | 5 | 1 | 23 % | 79 % |
| 90 | Search Result Uses HTTPS Other | -0.17 | 1 | 1 | 84 % | 77 % |
| 91 | Percentage of DoFollow Internal Links Authority | -0.17 | 95 | 79 | 87 % | 69 % |
| 92 | Search Result Has Params Other | -0.17 | 1 | 1 | 6 % | 54 % |
| 93 | Exact Matches in H1-H6 Tags Relevancy | -0.17 | 14 | 2 | 30 % | 91 % |
| 94 | Inline CSS Kilobytes Size | -0.17 | 217 | 34 | 60 % | 84 % |
| 95 | Number of Questions In H2 Tags Size | -0.17 | 3 | 1 | 19 % | 80 % |
| 96 | Leading Variations in Title Tag Relevancy | -0.17 | 1 | 1 | 37 % | 70 % |
| 97 | Head Size Kilobytes Size | -0.17 | 163 | 42 | 86 % | 84 % |
| 98 | Variations in Value Attributes Relevancy | -0.16 | 31 | 2 | 13 % | 80 % |
| 99 | Number of US Phone Numbers Trust | -0.16 | 145 | 6 | 35 % | 75 % |
| 100 | LSI Words in H1 Tags Relevancy | -0.16 | 18 | 5 | 61 % | 89 % |
| 101 | Variations in OpenGraph Title Relevancy | -0.16 | 4 | 2 | 57 % | 69 % |
| 102 | Variations in the last 100 words Relevancy | -0.16 | 16 | 4 | 51 % | 81 % |
| 103 | Has Entities in H5 Tags Relevancy | -0.16 | 1 | 1 | 10 % | 35 % |
| 104 | Entities in H4 Tags | -0.16 | 18 | 2 | 22 % | 42 % |
| 105 | Entities in the HTML Tag Relevancy | -0.16 | 2377 | 282 | 39 % | 97 % |
| 106 | Variations in H3 Tags Relevancy | -0.15 | 21 | 4 | 38 % | 83 % |
| 107 | Variations making whole A Tags Relevancy | -0.15 | 5 | 2 | 32 % | 77 % |
| 108 | LSI Words in Meta Description Tag Relevancy | -0.15 | 37 | 10 | 54 % | 89 % |
| 109 | Meta Description Tag Has Entities Relevancy | -0.15 | 1 | 1 | 56 % | 38 % |
| 110 | Number of HTML Comments Size | -0.15 | 126 | 29 | 76 % | 72 % |
| 111 | Entities in Sentences Relevancy | -0.15 | 404 | 59 | 38 % | 98 % |
| 112 | Exact Matches in A Tags Relevancy | -0.15 | 45 | 3 | 26 % | 91 % |
| 113 | Percentage of DoFollow Links Authority | -0.15 | 100 | 91 | 87 % | 67 % |
| 114 | Search Result Number of Dirs in Path Other | -0.15 | 4 | 2 | 82 % | 65 % |
| 115 | Exact Matches in Title Tag Relevancy | -0.15 | 2 | 1 | 29 % | 87 % |
| 116 | Number of P Tags Size | -0.15 | 211 | 40 | 89 % | 74 % |
| 117 | Number of Questions In Headings Size | -0.15 | 6 | 2 | 33 % | 83 % |
| 118 | Number of Questions Size | -0.15 | 27 | 5 | 62 % | 80 % |
| 119 | Variations in OpenGraph Description Relevancy | -0.15 | 7 | 2 | 50 % | 71 % |
| 120 | Variations in Nav Tags Relevancy | -0.15 | 195 | 15 | 43 % | 78 % |
| 121 | Number of Images without ALT Text Size | -0.15 | 111 | 13 | 70 % | 77 % |
| 122 | Variations in Form Tags Relevancy | -0.15 | 4 | 1 | 11 % | 78 % |
| 123 | Entities in H5 Tags | -0.15 | 6 | 1 | 9 % | 38 % |
| 124 | Variations in Section Tags Relevancy | -0.14 | 76 | 17 | 35 % | 77 % |
| 125 | Average Words Per Sentence Size | -0.14 | 211 | 48 | 89 % | 69 % |
| 126 | Variations in Main Tags Relevancy | -0.14 | 224 | 43 | 29 % | 76 % |
| 127 | Keywords in pages most used phrase | -0.14 | 1 | 1 | 20 % | 79 % |
| 128 | Variations in Meta Keywords Relevancy | -0.14 | 4 | 1 | 18 % | 69 % |
| 129 | Number of External Links Authority | -0.14 | 69 | 19 | 83 % | 80 % |
| 130 | Number of DoFollow External Links Authority | -0.14 | 39 | 16 | 80 % | 78 % |
| 131 | Headings Has Question Other | -0.14 | 1 | 1 | 33 % | 78 % |
| 132 | Variations in Strong Tags Relevancy | -0.14 | 20 | 4 | 35 % | 80 % |
| 133 | Has Form Technology | -0.14 | 1 | 1 | 69 % | 67 % |
| 134 | Number of Nofollow Links Authority | -0.14 | 36 | 9 | 40 % | 77 % |
| 135 | Variations in H4-H6 Tags Relevancy | -0.14 | 7 | 2 | 22 % | 83 % |
| 136 | Ahrefs Internal Links Authority | -0.14 | 440 | 77 | 64 % | 23 % |
| 137 | Variations in Footer Tags Relevancy | -0.14 | 39 | 5 | 32 % | 71 % |
| 138 | Exact Matches in Sentences Relevancy | -0.14 | 20 | 2 | 22 % | 91 % |
| 139 | Number of CSS Includes Technology | -0.14 | 14 | 8 | 83 % | 67 % |
| 140 | Number of H3 Tags Size | -0.14 | 23 | 9 | 69 % | 77 % |
| 141 | Search Result Has Rewritten Page Title Other | -0.14 | 1 | 1 | 46 % | 58 % |
| 142 | Exact Matches in H1 Tags Relevancy | -0.14 | 2 | 1 | 22 % | 85 % |
| 143 | Number of Includes Technology | -0.14 | 27 | 8 | 83 % | 67 % |
| 144 | Variations in Search Result Summary Relevancy | -0.14 | 8 | 3 | 81 % | 69 % |
| 145 | Number of H5 Tags Size | -0.14 | 16 | 2 | 20 % | 76 % |
| 146 | Variations in Label Tags Relevancy | -0.13 | 4 | 1 | 6 % | 82 % |
| 147 | Variations making whole H1-H6 Tags Relevancy | -0.13 | 2 | 1 | 15 % | 74 % |
| 148 | Has Entities in H3 Tags Relevancy | -0.13 | 1 | 1 | 44 % | 33 % |
| 149 | Variations in H4 Tags Relevancy | -0.13 | 7 | 2 | 17 % | 82 % |
| 150 | Title Word Count Size | -0.13 | 19 | 10 | 92 % | 64 % |
| 151 | Title Length Size | -0.13 | 131 | 62 | 92 % | 61 % |
| 152 | Number of H4 Tags Size | -0.13 | 22 | 5 | 47 % | 73 % |
| 153 | Has Canonical URL Authority | -0.13 | 1 | 1 | 76 % | 65 % |
| 154 | Search Result Link Text Length Size | -0.13 | 87 | 54 | 94 % | 63 % |
| 155 | Ahrefs Image Backlinks | -0.13 | 67437 | 858 | 21 % | 21 % |
| 156 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.13 | 2 | 1 | 13 % | 72 % |
| 157 | Ahrefs Word Count Size | -0.13 | 3708 | 1139 | 61 % | 16 % |
| 158 | Percentage of NoFollow Links Authority | -0.13 | 23 | 5 | 38 % | 71 % |
| 159 | Word Count in Meta Description Size | -0.13 | 65 | 24 | 68 % | 71 % |
| 160 | Search Result URL Length Size | -0.13 | 112 | 68 | 92 % | 53 % |
| 161 | Exact Matches in H2 Tags Relevancy | -0.13 | 10 | 1 | 14 % | 89 % |
| 162 | Leading Variations in H3 Tags Relevancy | -0.13 | 11 | 1 | 18 % | 76 % |
| 163 | Ahrefs Linked Root Domains Authority | -0.13 | 24 | 7 | 64 % | 23 % |
| 164 | Search Result Link Text Has Ellipsis Other | -0.13 | 1 | 1 | 33 % | 53 % |
| 165 | Meta Description Length Size | -0.13 | 397 | 132 | 68 % | 71 % |
| 166 | Number of NoFollow External Links Authority | -0.12 | 33 | 4 | 27 % | 68 % |
| 167 | Ahrefs Has Image Backlinks Authority | -0.12 | 1 | 1 | 18 % | 19 % |
| 168 | Has Privacy Policy Trust | -0.12 | 1 | 1 | 49 % | 73 % |
| 169 | Has Entities in H4 Tags Relevancy | -0.12 | 1 | 1 | 24 % | 34 % |
| 170 | Flesch Kincaid Reading Grade Level Other | -0.12 | 7 | 2 | 84 % | 67 % |
| 171 | Number of H1 Tags Size | -0.12 | 6 | 2 | 80 % | 71 % |
| 172 | DomDetailer Majestic Referring Domains Authority | -0.12 | 1430547 | 227838 | 74 % | 16 % |
| 173 | Has Meta Description Relevancy | -0.12 | 1 | 1 | 69 % | 65 % |
| 174 | Ahrefs External Links Authority | -0.12 | 632 | 19 | 61 % | 23 % |
| 175 | Exact Matches in Meta Description Relevancy | -0.12 | 3 | 1 | 18 % | 88 % |
| 176 | DomDetailer Majestic IPs Authority | -0.12 | 275817 | 39709 | 74 % | 16 % |
| 177 | LSI Words in H3 Tags Relevancy | -0.12 | 139 | 18 | 50 % | 82 % |
| 178 | Percentage of NoFollow External Links Authority | -0.12 | 19 | 3 | 25 % | 65 % |
| 179 | Percentage of NoFollow Internal Links Authority | -0.12 | 11 | 3 | 28 % | 72 % |
| 180 | Search Result Domain is .com Other | -0.12 | 1 | 1 | 5 % | 52 % |
| 181 | Variations making whole H1 Tags Relevancy | -0.12 | 1 | 1 | 8 % | 71 % |
| 182 | Variations in Article Tags Relevancy | -0.12 | 165 | 21 | 30 % | 71 % |
| 183 | Search Result Domain is .com, .net, or .org Other | -0.12 | 1 | 1 | 6 % | 53 % |
| 184 | Variations in Class Attributes Relevancy | -0.12 | 141 | 5 | 24 % | 78 % |
| 185 | DomDetailer Majestic Referring Subnets Authority | -0.12 | 70579 | 11074 | 75 % | 17 % |
| 186 | Title Has Sentiment Words Other | -0.12 | 1 | 1 | 16 % | 67 % |
| 187 | Flesch Kincaid Reading Ease | -0.12 | 176 | 112 | 94 % | 63 % |
| 188 | DomDetailer Facebook Shares Authority | -0.12 | 3836771 | -6559554 | 67 % | 16 % |
| 189 | Title Has Year Other | -0.12 | 1 | 1 | 10 % | 64 % |
| 190 | Title Has Sales Words Other | -0.12 | 1 | 1 | 15 % | 68 % |
| 191 | Has Meta Keywords Relevancy | -0.12 | 1 | 1 | 26 % | 50 % |
| 192 | Number of Meta Keywords Relevancy | -0.12 | 11 | 3 | 93 % | 61 % |
| 193 | Search Result Has Schema Other | -0.11 | 1 | 1 | 3 % | 71 % |
| 194 | Number of Questions In H3 Tags Size | -0.11 | 4 | 1 | 14 % | 69 % |
| 195 | DomDetailer Majestic Links Authority | -0.11 | 271560596 | 15245088 | 73 % | 16 % |
| 196 | Has OpenGraph Image Relevancy | -0.11 | 1 | 1 | 56 % | 51 % |
| 197 | DomDetailer Majestic CF Authority | -0.11 | 59 | 28 | 72 % | 15 % |
| 198 | Search Result Link Text Has Year Other | -0.11 | 1 | 1 | 9 % | 60 % |
| 199 | DomDetailer Moz PA Authority | -0.11 | 68 | 34 | 75 % | 16 % |
| 200 | LSI Words in H4 Tags Relevancy | -0.11 | 75 | 7 | 31 % | 85 % |