[ 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 ) 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 ( 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 | -0.29 | 55 | 26 | 87 % | 34 % |
| 2 | Variations in HTML Tags Relevancy | -0.26 | 759 | 189 | 91 % | 93 % |
| 3 | Variations in Body Tags Relevancy | -0.24 | 661 | 171 | 85 % | 94 % |
| 4 | Term Frequency Relevancy | -0.24 | 8 | 6 | 91 % | 94 % |
| 5 | Variations in Div Tags Relevancy | -0.24 | 556 | 138 | 90 % | 93 % |
| 6 | Exact Matches in the HTML Tag Relevancy | -0.24 | 256 | 16 | 54 % | 92 % |
| 7 | Variations in H1-H6 Tags Relevancy | -0.23 | 50 | 11 | 84 % | 93 % |
| 8 | Variations in H1, H2, and H3 Tags Relevancy | -0.23 | 46 | 10 | 83 % | 92 % |
| 9 | Exact Matches in Body Tag Relevancy | -0.23 | 210 | 19 | 53 % | 93 % |
| 10 | Variations in Search Result Display URL Relevancy | -0.23 | 5 | 2 | 90 % | 81 % |
| 11 | Variations in Search Result Link Text Relevancy | -0.23 | 5 | 2 | 90 % | 81 % |
| 12 | Number of Factors Used Diversity | -0.22 | 199 | 134 | 96 % | 90 % |
| 13 | Variations in A Tags Relevancy | -0.22 | 233 | 41 | 85 % | 95 % |
| 14 | Variations in P Tags Relevancy | -0.22 | 156 | 37 | 81 % | 89 % |
| 15 | Variations in H1 and H2 Tags Relevancy | -0.22 | 32 | 5 | 80 % | 90 % |
| 16 | Variations in Search Result URL Path Relevancy | -0.21 | 4 | 2 | 69 % | 74 % |
| 17 | Entities in Title Tag Relevancy | -0.21 | 6 | 3 | 75 % | 33 % |
| 18 | Variations in A Tag HREF Attributes Relevancy | -0.21 | 336 | 50 | 76 % | 94 % |
| 19 | Exact Matches in H1-H6 Tags Relevancy | -0.21 | 13 | 3 | 43 % | 90 % |
| 20 | Variations in Sentences Relevancy | -0.21 | 77 | 21 | 77 % | 90 % |
| 21 | Variations in the Title Tag Relevancy | -0.21 | 4 | 2 | 84 % | 81 % |
| 22 | Variations in LI Tags Relevancy | -0.2 | 161 | 24 | 76 % | 93 % |
| 23 | Variations in Search Result Document File Name Relevancy | -0.2 | 4 | 2 | 67 % | 70 % |
| 24 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.2 | 22 | 3 | 54 % | 89 % |
| 25 | Leading Variations in H1-H6 Tags Relevancy | -0.2 | 24 | 4 | 57 % | 89 % |
| 26 | Variations in Search Result URL Relevancy | -0.2 | 4 | 2 | 65 % | 82 % |
| 27 | Variations in H2 Tags Relevancy | -0.2 | 31 | 4 | 53 % | 91 % |
| 28 | Entities in H2 Tags | -0.2 | 38 | 5 | 51 % | 33 % |
| 29 | Variations in Span Tags Relevancy | -0.2 | 73 | 15 | 66 % | 90 % |
| 30 | Keywords in pages top 10 most used phrases | -0.2 | 5 | 2 | 69 % | 88 % |
| 31 | LSI Words in Sentences Relevancy | -0.19 | 5792 | 770 | 77 % | 95 % |
| 32 | Page Size Kilobytes Size | -0.19 | 378 | 133 | 96 % | 88 % |
| 33 | Exact Matches in Title Tag Relevancy | -0.19 | 2 | 1 | 38 % | 84 % |
| 34 | Variations in Meta Description Relevancy | -0.19 | 15 | 2 | 63 % | 85 % |
| 35 | Entities in H3 Tags | -0.19 | 38 | 5 | 42 % | 34 % |
| 36 | Variations in ALT Attributes Relevancy | -0.19 | 52 | 13 | 62 % | 91 % |
| 37 | Exact Matches in A Tags Relevancy | -0.19 | 67 | 5 | 39 % | 89 % |
| 38 | Search Result Publish Date | -0.18 | 2000089933 | 1761205042 | 85 % | 27 % |
| 39 | Leading Variations in Title Tag Relevancy | -0.18 | 1 | 1 | 41 % | 78 % |
| 40 | Keywords in pages top 5 most used phrases | -0.18 | 3 | 1 | 55 % | 88 % |
| 41 | Clean Text Kilobytes Size | -0.18 | 44 | 11 | 93 % | 82 % |
| 42 | Variations in the Canonical URL Relevancy | -0.18 | 4 | 2 | 52 % | 80 % |
| 43 | Variations in Absolute URLs Relevancy | -0.18 | 255 | 52 | 71 % | 91 % |
| 44 | Leading Variations in H1 Tags Relevancy | -0.18 | 2 | 1 | 35 % | 80 % |
| 45 | Word Count Size | -0.18 | 6118 | 1497 | 95 % | 84 % |
| 46 | Unabridged Word Count Size | -0.18 | 8056 | 1900 | 95 % | 85 % |
| 47 | Variations in Script Tags Relevancy | -0.18 | 262 | 28 | 62 % | 94 % |
| 48 | Keywords in pages top 3 most used phrases | -0.18 | 3 | 1 | 42 % | 85 % |
| 49 | Variations in First 100 Words Relevancy | -0.18 | 27 | 7 | 71 % | 83 % |
| 50 | TF/IDF Relevancy | -0.18 | 1 | 1 | 75 % | 81 % |
| 51 | Variations in H1 Tags Relevancy | -0.18 | 5 | 2 | 70 % | 80 % |
| 52 | Number of HTML Tags Size | -0.18 | 2775 | 878 | 97 % | 82 % |
| 53 | Body Tag Size Kilobytes Size | -0.17 | 282 | 79 | 85 % | 87 % |
| 54 | LSI Words in Title Tag Relevancy | -0.17 | 27 | 7 | 74 % | 92 % |
| 55 | Variations in H3 Tags Relevancy | -0.17 | 33 | 5 | 43 % | 89 % |
| 56 | Ahrefs Referring Domains Authority | -0.17 | 2487 | 83 | 41 % | 16 % |
| 57 | Entities in H1 Tags | -0.17 | 6 | 2 | 61 % | 31 % |
| 58 | Ahrefs Referring Class C Addresses Authority | -0.17 | 721 | 37 | 41 % | 16 % |
| 59 | Variations in Strong Tags Relevancy | -0.17 | 29 | 6 | 46 % | 83 % |
| 60 | Ahrefs Referring IP Addresses Authority | -0.17 | 1025 | 49 | 42 % | 16 % |
| 61 | Number of Heading Tags Size | -0.16 | 65 | 23 | 92 % | 82 % |
| 62 | Number of Sentences Size | -0.16 | 210 | 40 | 92 % | 84 % |
| 63 | Exact Matches in Sentences Relevancy | -0.16 | 24 | 3 | 32 % | 90 % |
| 64 | Exact Matches in H2 Tags Relevancy | -0.16 | 7 | 1 | 22 % | 89 % |
| 65 | Exact Matches in Meta Description Relevancy | -0.16 | 3 | 1 | 23 % | 87 % |
| 66 | Search Result Number of Dirs in Path Other | -0.16 | 4 | 2 | 86 % | 62 % |
| 67 | Number of HTTPS Links Authority | -0.16 | 498 | 145 | 90 % | 82 % |
| 68 | Number of H2 Tags Size | -0.16 | 36 | 6 | 75 % | 83 % |
| 69 | LSI Words in H2 Tags Relevancy | -0.16 | 272 | 21 | 57 % | 93 % |
| 70 | Ahrefs Backlinks Authority | -0.16 | 1444390 | 15091 | 42 % | 16 % |
| 71 | Ahrefs Referring Pages Authority | -0.16 | 1444390 | 15091 | 42 % | 16 % |
| 72 | Number of Images Size | -0.16 | 90 | 35 | 92 % | 79 % |
| 73 | Number of P Tags Size | -0.16 | 253 | 42 | 90 % | 81 % |
| 74 | Exact Matches in H1 Tags Relevancy | -0.16 | 3 | 1 | 29 % | 81 % |
| 75 | Variations in OpenGraph Title Relevancy | -0.16 | 3 | 2 | 60 % | 78 % |
| 76 | Ahrefs Text Backlinks Authority | -0.16 | 1444301 | 14980 | 41 % | 16 % |
| 77 | Variations in OpenGraph Description Relevancy | -0.16 | 11 | 2 | 54 % | 83 % |
| 78 | Inline JavaScript Kilobytes Size | -0.16 | 137 | 28 | 91 % | 84 % |
| 79 | Variations in Search Result Summary Relevancy | -0.16 | 5 | 2 | 65 % | 76 % |
| 80 | Variations in the last 100 words Relevancy | -0.16 | 16 | 4 | 56 % | 82 % |
| 81 | Entities in Meta Description Tag Relevancy | -0.15 | 8 | 3 | 57 % | 32 % |
| 82 | Variations in TITLE Attributes Relevancy | -0.15 | 82 | 13 | 49 % | 88 % |
| 83 | Ahrefs NoFollow Backlinks Authority | -0.15 | 456201 | 3803 | 34 % | 16 % |
| 84 | Ahrefs Dofollow Backlinks Authority | -0.15 | 988098 | 11517 | 35 % | 16 % |
| 85 | Head Size Kilobytes Size | -0.15 | 96 | 33 | 91 % | 81 % |
| 86 | Number of Questions In H2 Tags Size | -0.15 | 4 | 1 | 19 % | 78 % |
| 87 | Has Entities in H1 Tags Relevancy | -0.15 | 1 | 1 | 62 % | 28 % |
| 88 | Number of Links Authority | -0.15 | 502 | 160 | 93 % | 78 % |
| 89 | Variations in Section Tags Relevancy | -0.15 | 70 | 21 | 37 % | 87 % |
| 90 | Ahrefs Rank Authority | -0.15 | 44 | 12 | 69 % | 15 % |
| 91 | Number of Questions In Headings Size | -0.15 | 11 | 2 | 35 % | 80 % |
| 92 | Variations in Nav Tags Relevancy | -0.15 | 182 | 15 | 45 % | 87 % |
| 93 | Variations making whole A Tags Relevancy | -0.15 | 6 | 1 | 32 % | 84 % |
| 94 | Has JSON-LD SoftwareApplication | -0.15 | 1 | 1 | 2 % | 12 % |
| 95 | Number of Images with ALT Text Size | -0.15 | 62 | 22 | 86 % | 82 % |
| 96 | Number of Internal Links Authority | -0.15 | 484 | 145 | 92 % | 81 % |
| 97 | Ahrefs Word Count Size | -0.15 | 4065 | 938 | 50 % | 15 % |
| 98 | Number of DoFollow Links Authority | -0.15 | 490 | 153 | 93 % | 78 % |
| 99 | Search Result Uses HTTPS Other | -0.15 | 1 | 1 | 84 % | 76 % |
| 100 | Title Tag Has Entities Relevancy | -0.14 | 1 | 1 | 75 % | 26 % |
| 101 | Entities in H4 Tags | -0.14 | 11 | 2 | 24 % | 32 % |
| 102 | Leading Variations in H3 Tags Relevancy | -0.14 | 12 | 2 | 22 % | 84 % |
| 103 | Number of Absolute URLs Authority | -0.14 | 498 | 148 | 94 % | 82 % |
| 104 | Variations Making Whole Span Tags Relevancy | -0.14 | 18 | 1 | 19 % | 85 % |
| 105 | Leading Variations in H2 Tags Relevancy | -0.14 | 11 | 1 | 24 % | 87 % |
| 106 | Number of H3 Tags Size | -0.14 | 31 | 10 | 72 % | 82 % |
| 107 | DomDetailer Majestic IPs Authority | -0.14 | 155372 | 40773 | 77 % | 19 % |
| 108 | Load Time Milliseconds Performance | -0.14 | 44864 | 2709 | 96 % | 68 % |
| 109 | Has Entities in H2 Tags Relevancy | -0.14 | 1 | 1 | 52 % | 29 % |
| 110 | DomDetailer Majestic Referring Subnets Authority | -0.14 | 48184 | 10542 | 77 % | 19 % |
| 111 | DomDetailer Majestic Referring Domains Authority | -0.14 | 1126871 | 254083 | 77 % | 19 % |
| 112 | Variations Making Whole LI Tags Relevancy | -0.14 | 5 | 1 | 24 % | 79 % |
| 113 | DomDetailer Moz DA Authority | -0.14 | 80 | 31 | 75 % | 16 % |
| 114 | Search Result Summary Length Size | -0.14 | 411 | 197 | 89 % | 72 % |
| 115 | DomDetailer Moz PA Authority | -0.14 | 70 | 33 | 77 % | 17 % |
| 116 | Inline CSS Kilobytes Size | -0.14 | 81 | 23 | 58 % | 77 % |
| 117 | LSI Words in Meta Description Tag Relevancy | -0.14 | 64 | 13 | 57 % | 92 % |
| 118 | Ahrefs Has Backlinks Authority | -0.14 | 1 | 1 | 41 % | 16 % |
| 119 | Number of Questions Size | -0.14 | 40 | 6 | 63 % | 78 % |
| 120 | Variations in I Tags Relevancy | -0.14 | 22 | 4 | 33 % | 84 % |
| 121 | Headings Has Question Other | -0.13 | 1 | 1 | 34 % | 72 % |
| 122 | Ahrefs Has Text Backlinks Authority | -0.13 | 1 | 1 | 41 % | 16 % |
| 123 | Variations in Main Tags Relevancy | -0.13 | 228 | 43 | 26 % | 82 % |
| 124 | Number of HREF Lang Tags Size | -0.13 | 36 | 2 | 12 % | 76 % |
| 125 | Ahrefs Has Dofollow Backlinks Authority | -0.13 | 1 | 1 | 35 % | 16 % |
| 126 | Variations in Footer Tags Relevancy | -0.13 | 42 | 6 | 36 % | 81 % |
| 127 | Flesch Kincaid Reading Grade Level Other | -0.13 | 8 | 1 | 79 % | 66 % |
| 128 | Ahrefs Linked Root Domains Authority | -0.13 | 20 | 6 | 52 % | 16 % |
| 129 | Has Entities in H3 Tags Relevancy | -0.13 | 1 | 1 | 43 % | 29 % |
| 130 | Ahrefs Has NoFollow Backlinks Authority | -0.13 | 1 | 1 | 33 % | 16 % |
| 131 | DomDetailer Moz Rank Authority | -0.13 | 8 | 4 | 74 % | 15 % |
| 132 | LSI Words in H1 Tags Relevancy | -0.13 | 29 | 6 | 63 % | 86 % |
| 133 | Leading Variations in Meta Description Relevancy | -0.13 | 1 | 1 | 18 % | 75 % |
| 134 | Percentage of DoFollow Internal Links Authority | -0.13 | 93 | 83 | 92 % | 68 % |
| 135 | Variations making whole H1-H6 Tags Relevancy | -0.13 | 2 | 1 | 13 % | 79 % |
| 136 | Ahrefs Internal Links Authority | -0.13 | 430 | 59 | 50 % | 16 % |
| 137 | DomDetailer Majestic CF Authority | -0.13 | 60 | 29 | 75 % | 17 % |
| 138 | Variations in H4-H6 Tags Relevancy | -0.13 | 16 | 2 | 25 % | 84 % |
| 139 | Ahrefs External Links Authority | -0.13 | 93 | 13 | 48 % | 16 % |
| 140 | Number of Forms Technology | -0.13 | 13 | 3 | 74 % | 72 % |
| 141 | LSI Words in H3 Tags Relevancy | -0.13 | 176 | 29 | 54 % | 90 % |
| 142 | Exact Matches in H3 Tags Relevancy | -0.13 | 8 | 1 | 15 % | 86 % |
| 143 | DomDetailer Majestic Links Authority | -0.13 | 240193164 | 10984423 | 77 % | 19 % |
| 144 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.13 | 2 | 1 | 12 % | 79 % |
| 145 | Has JSON-LD AggregateRating | -0.13 | 1 | 1 | 7 % | 64 % |
| 146 | Variations in H4 Tags Relevancy | -0.13 | 14 | 2 | 19 % | 83 % |
| 147 | Ahrefs Images Relevancy | -0.12 | 73 | 13 | 46 % | 15 % |
| 148 | Number of External Links Authority | -0.12 | 49 | 16 | 87 % | 76 % |
| 149 | Variations in Value Attributes Relevancy | -0.12 | 35 | 2 | 15 % | 76 % |
| 150 | Has Privacy Policy Trust | -0.12 | 1 | 1 | 34 % | 66 % |
| 151 | Variations in ID Attributes Relevancy | -0.12 | 8 | 1 | 13 % | 83 % |
| 152 | Leading Variations in H4-H6 Tags Relevancy | -0.12 | 8 | 1 | 11 % | 78 % |
| 153 | DomDetailer Facebook Shares Authority | -0.12 | 36046387 | 6284344 | 70 % | 18 % |
| 154 | DomDetailer Moz Links Authority | -0.12 | 68342997 | 14328026 | 77 % | 19 % |
| 155 | Variations in Meta Keywords Relevancy | -0.12 | 15 | 2 | 23 % | 76 % |
| 156 | Number of DoFollow External Links Authority | -0.12 | 41 | 14 | 84 % | 73 % |
| 157 | Word Count in Meta Description Size | -0.12 | 103 | 25 | 71 % | 79 % |
| 158 | Ahrefs Page Size Size | -0.12 | 52716 | 17284 | 51 % | 15 % |
| 159 | Variations Making Whole Strong Tags Relevancy | -0.12 | 4 | 1 | 9 % | 82 % |
| 160 | Search Result Has Params Other | -0.12 | 1 | 1 | 4 % | 50 % |
| 161 | Search Result Link Text Length Size | -0.12 | 89 | 55 | 96 % | 67 % |
| 162 | Meta Description Length Size | -0.12 | 489 | 132 | 71 % | 77 % |
| 163 | Has MicroData Description | -0.12 | 1 | 1 | 6 % | 59 % |
| 164 | Variations in Em Tags Relevancy | -0.12 | 9 | 2 | 18 % | 75 % |
| 165 | Variations in Search Result URL Domain Name Relevancy | -0.12 | 2 | 1 | 5 % | 42 % |
| 166 | DomDetailer Majestic TF Authority | -0.12 | 62 | 21 | 67 % | 17 % |
| 167 | Has Meta Description Relevancy | -0.12 | 1 | 1 | 72 % | 74 % |
| 168 | Variations in Class Attributes Relevancy | -0.12 | 115 | 6 | 25 % | 82 % |
| 169 | Meta Description Tag Has Entities Relevancy | -0.12 | 1 | 1 | 57 % | 26 % |
| 170 | Number of Nofollow Links Authority | -0.12 | 40 | 8 | 45 % | 76 % |
| 171 | Ahrefs Image Backlinks | -0.12 | 76635 | 1364 | 14 % | 14 % |
| 172 | Number of NoFollow External Links Authority | -0.12 | 17 | 3 | 29 % | 74 % |
| 173 | Has HREF Lang Technology | -0.12 | 1 | 1 | 13 % | 66 % |
| 174 | Variations in Article Tags Relevancy | -0.12 | 132 | 18 | 29 % | 72 % |
| 175 | Has Terms of Service Trust | -0.12 | 1 | 1 | 25 % | 70 % |
| 176 | Variations in Aside Tags Relevancy | -0.12 | 117 | 7 | 17 % | 74 % |
| 177 | Ahrefs Pages Size | -0.11 | 4 | 1 | 54 % | 16 % |
| 178 | Variations in Meta Twitter Description Relevancy | -0.11 | 11 | 1 | 24 % | 73 % |
| 179 | Leading Variations in H4 Tags Relevancy | -0.11 | 5 | 1 | 8 % | 77 % |
| 180 | Percentage of DoFollow External Links Authority | -0.11 | 50 | 12 | 82 % | 58 % |
| 181 | Average Words Per Sentence Size | -0.11 | 297 | 57 | 93 % | 67 % |
| 182 | Has Form Technology | -0.11 | 1 | 1 | 74 % | 63 % |
| 183 | Has Canonical URL Authority | -0.11 | 1 | 1 | 75 % | 72 % |
| 184 | Variations in Form Tags Relevancy | -0.11 | 6 | 1 | 14 % | 77 % |
| 185 | Has JSON-LD Offer | -0.11 | 1 | 1 | 6 % | 54 % |
| 186 | Variations in B Tags Relevancy | -0.11 | 13 | 2 | 15 % | 79 % |
| 187 | Ahrefs Has External Links Authority | -0.11 | 1 | 1 | 48 % | 16 % |
| 188 | Percentage of DoFollow Links Authority | -0.11 | 100 | 93 | 92 % | 70 % |
| 189 | Ahrefs Has Internal Links Authority | -0.11 | 1 | 1 | 50 % | 16 % |
| 190 | Variations making whole H1 Tags Relevancy | -0.11 | 1 | 1 | 7 % | 79 % |
| 191 | Number of Social Accounts Authority | -0.11 | 3 | 2 | 43 % | 69 % |
| 192 | Ahrefs Has Linked Root Domains Authority | -0.11 | 1 | 1 | 51 % | 16 % |
| 193 | Number of Twitter Accounts Authority | -0.11 | 2 | 1 | 33 % | 63 % |
| 194 | Number of US Phone Numbers Trust | -0.11 | 162 | 6 | 31 % | 73 % |
| 195 | Variations in Option Tags Relevancy | -0.11 | 58 | 2 | 6 % | 74 % |
| 196 | Variations in Figure Tags Relevancy | -0.11 | 113 | 8 | 14 % | 76 % |
| 197 | Number of Social Pages Authority | -0.11 | 12 | 1 | 38 % | 69 % |
| 198 | Keywords in pages most used phrase | -0.11 | 1 | 1 | 17 % | 79 % |
| 199 | Number of Questions In H4 Tags Size | -0.11 | 2 | 1 | 6 % | 64 % |
| 200 | Ahrefs Has Image Backlinks Authority | -0.11 | 1 | 1 | 14 % | 13 % |