[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]
[ Wappalyzer API ]
SEO Factor ClassSize ( 54327 )Relevancy ( 53933 ) Other ( 32594 ) Local ( 8979 ) 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 ( 54323 )Keywords ( 41835 ) Schema ( 32540 ) Local ( 8980 ) LSI ( 8508 ) 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 | -0.3 | 73 | 27 | 91 % | 67 % |
| 2 | Number of Top 50 Shared Factors Used Diversity | -0.29 | 42 | 27 | 99 % | 15 % |
| 3 | Number of Top 100 Shared Factors Used Diversity | -0.28 | 77 | 52 | 99 % | 15 % |
| 4 | Number of Factors Used Diversity | -0.27 | 206 | 129 | 94 % | 90 % |
| 5 | Number of Top 200 Shared Factors Used Diversity | -0.24 | 128 | 92 | 99 % | 15 % |
| 6 | Variations in HTML Tags Relevancy | -0.24 | 38262 | 233 | 88 % | 96 % |
| 7 | Variations in Body Tags Relevancy | -0.23 | 29334 | 199 | 82 % | 96 % |
| 8 | Variations in Div Tags Relevancy | -0.23 | 22922 | 154 | 87 % | 95 % |
| 9 | Term Frequency Relevancy | -0.23 | 12 | 5 | 88 % | 94 % |
| 10 | LSI Words in Sentences Relevancy | -0.22 | 2583 | 519 | 81 % | 97 % |
| 11 | Variations in A Tags Relevancy | -0.22 | 5159 | 38 | 80 % | 95 % |
| 12 | Entities in Title Tag Relevancy | -0.22 | 7 | 3 | 75 % | 63 % |
| 13 | Variations in H1-H6 Tags Relevancy | -0.21 | 151 | 8 | 80 % | 94 % |
| 14 | Variations in P Tags Relevancy | -0.21 | 2187 | 34 | 77 % | 93 % |
| 15 | Variations in H1, H2, and H3 Tags Relevancy | -0.21 | 104 | 7 | 79 % | 94 % |
| 16 | Variations in Search Result Display URL Relevancy | -0.21 | 8 | 2 | 87 % | 81 % |
| 17 | Variations in Search Result Link Text Relevancy | -0.21 | 8 | 2 | 87 % | 81 % |
| 18 | Entities in H2 Tags | -0.21 | 31 | 6 | 53 % | 65 % |
| 19 | Variations in Distinct A Tag HREF Attributes Relevancy | -0.21 | 1702 | 38 | 76 % | 85 % |
| 20 | Variations in LI Tags Relevancy | -0.21 | 971 | 19 | 71 % | 95 % |
| 21 | Ahrefs NoFollow Backlinks Authority | -0.21 | 128259 | 2299 | 50 % | 16 % |
| 22 | Variations in A Tag HREF Attributes Relevancy | -0.21 | 2434 | 54 | 77 % | 94 % |
| 23 | Variations in H1 and H2 Tags Relevancy | -0.2 | 43 | 4 | 76 % | 92 % |
| 24 | Variations in Sentences Relevancy | -0.2 | 143 | 22 | 77 % | 90 % |
| 25 | Body Tag Size Kilobytes Size | -0.2 | 307 | 86 | 79 % | 92 % |
| 26 | Ahrefs Referring Class C Addresses Authority | -0.2 | 1261 | 60 | 55 % | 16 % |
| 27 | Clean Keyword Density in the HTML Tag Relevancy | -0.2 | 204 | 5 | 85 % | 81 % |
| 28 | Ahrefs Referring Domains Authority | -0.2 | 2776 | 98 | 55 % | 16 % |
| 29 | Ahrefs Referring IP Addresses Authority | -0.2 | 2252 | 89 | 55 % | 16 % |
| 30 | Variations in Script Tags Relevancy | -0.2 | 5798 | 52 | 65 % | 93 % |
| 31 | Ahrefs Text Backlinks Authority | -0.2 | 260054 | 6516 | 54 % | 16 % |
| 32 | Ahrefs Backlinks Authority | -0.19 | 260347 | 6625 | 55 % | 16 % |
| 33 | Ahrefs Referring Pages Authority | -0.19 | 260347 | 6625 | 55 % | 16 % |
| 34 | Ahrefs Rank Authority | -0.19 | 35 | 14 | 72 % | 14 % |
| 35 | Variations in the Title Tag Relevancy | -0.19 | 8 | 2 | 81 % | 80 % |
| 36 | Page Size Kilobytes Size | -0.19 | 411 | 152 | 93 % | 85 % |
| 37 | Entities in H3 Tags | -0.19 | 36 | 6 | 45 % | 65 % |
| 38 | Keywords in pages top 10 most used phrases | -0.19 | 23 | 2 | 68 % | 86 % |
| 39 | Leading Variations in H1-H6 Tags Relevancy | -0.19 | 31 | 2 | 52 % | 90 % |
| 40 | Variation Density in Top 30KB Relevancy | -0.19 | 340 | 4 | 76 % | 78 % |
| 41 | LSI Words in Title Tag Relevancy | -0.19 | 14 | 5 | 77 % | 90 % |
| 42 | Variations in Search Result URL Path Relevancy | -0.18 | 15 | 2 | 62 % | 78 % |
| 43 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.18 | 23 | 2 | 48 % | 90 % |
| 44 | Variations in H2 Tags Relevancy | -0.18 | 50 | 3 | 49 % | 91 % |
| 45 | Number of HTML Tags Size | -0.18 | 2582 | 883 | 94 % | 86 % |
| 46 | Clean Text Kilobytes Size | -0.18 | 29 | 11 | 89 % | 88 % |
| 47 | Entities in Sentences Relevancy | -0.18 | 563 | 81 | 62 % | 98 % |
| 48 | Unabridged Word Count Size | -0.18 | 4577 | 1635 | 93 % | 88 % |
| 49 | Keywords in pages top 5 most used phrases | -0.18 | 11 | 2 | 59 % | 85 % |
| 50 | Word Count Size | -0.18 | 3696 | 1278 | 92 % | 86 % |
| 51 | Variations in ALT Attributes Relevancy | -0.18 | 215 | 8 | 52 % | 91 % |
| 52 | Variations in the Canonical URL Relevancy | -0.18 | 5 | 2 | 61 % | 83 % |
| 53 | Variations in Meta Description Relevancy | -0.17 | 93 | 2 | 60 % | 84 % |
| 54 | Exact Matches in Body Tag Relevancy | -0.17 | 214 | 14 | 37 % | 90 % |
| 55 | Variations in Span Tags Relevancy | -0.17 | 426 | 10 | 59 % | 91 % |
| 56 | Ahrefs Dofollow Backlinks Authority | -0.17 | 132172 | 3943 | 45 % | 16 % |
| 57 | Variations in First 100 Words Relevancy | -0.17 | 207 | 8 | 71 % | 80 % |
| 58 | Entities in Meta Description Tag Relevancy | -0.17 | 108 | 3 | 60 % | 59 % |
| 59 | Variations in Absolute URLs Relevancy | -0.17 | 9072 | 64 | 68 % | 90 % |
| 60 | Entities in the HTML Tag Relevancy | -0.17 | 2057 | 293 | 64 % | 97 % |
| 61 | Exact Matches in the HTML Tag Relevancy | -0.17 | 254 | 11 | 40 % | 83 % |
| 62 | LSI Words in H2 Tags Relevancy | -0.17 | 64 | 14 | 60 % | 93 % |
| 63 | Variations in Search Result URL Relevancy | -0.17 | 22 | 2 | 64 % | 79 % |
| 64 | Number of HTTPS Links Authority | -0.17 | 516 | 149 | 89 % | 84 % |
| 65 | Entities in H1 Tags | -0.17 | 6 | 2 | 59 % | 58 % |
| 66 | Variations in Nav Tags Relevancy | -0.17 | 6455 | 33 | 47 % | 90 % |
| 67 | Variations in H1 Tags Relevancy | -0.17 | 14 | 2 | 66 % | 79 % |
| 68 | Search Result Summary Length Size | -0.17 | 413 | 157 | 95 % | 84 % |
| 69 | Variations in Search Result Summary Relevancy | -0.17 | 22 | 3 | 91 % | 78 % |
| 70 | Variation Count in Top 30KB Relevancy | -0.17 | 7753 | 65 | 84 % | 73 % |
| 71 | Keywords in pages top 3 most used phrases | -0.17 | 7 | 1 | 50 % | 84 % |
| 72 | DomDetailer Majestic Referring Subnets Authority | -0.17 | 73439 | 13956 | 85 % | 30 % |
| 73 | DomDetailer Moz DA Authority | -0.17 | 87 | 39 | 85 % | 27 % |
| 74 | Number of Sentences Size | -0.16 | 202 | 50 | 90 % | 81 % |
| 75 | DomDetailer Majestic Referring Domains Authority | -0.16 | 1844589 | 330812 | 85 % | 30 % |
| 76 | DomDetailer Majestic IPs Authority | -0.16 | 289381 | 51941 | 85 % | 30 % |
| 77 | Number of Internal Links Authority | -0.16 | 502 | 136 | 90 % | 84 % |
| 78 | DomDetailer Facebook Shares Authority | -0.16 | 11122822 | 561981 | 79 % | 29 % |
| 79 | DomDetailer Moz PA Authority | -0.16 | 73 | 39 | 85 % | 28 % |
| 80 | DomDetailer Majestic CF Authority | -0.16 | 65 | 34 | 85 % | 30 % |
| 81 | Number of Links Authority | -0.16 | 518 | 154 | 91 % | 84 % |
| 82 | Number of DoFollow Links Authority | -0.16 | 505 | 148 | 91 % | 84 % |
| 83 | TF/IDF Relevancy | -0.16 | 2 | 1 | 68 % | 81 % |
| 84 | DomDetailer Majestic TF Authority | -0.16 | 67 | 26 | 78 % | 29 % |
| 85 | LSI Words in Meta Description Tag Relevancy | -0.16 | 349 | 9 | 60 % | 89 % |
| 86 | Number of P Tags Size | -0.16 | 129 | 35 | 87 % | 85 % |
| 87 | Variations in H3 Tags Relevancy | -0.16 | 82 | 3 | 36 % | 90 % |
| 88 | Entities in H4 Tags | -0.16 | 14 | 3 | 24 % | 62 % |
| 89 | Variations in OpenGraph Description Relevancy | -0.16 | 93 | 2 | 50 % | 79 % |
| 90 | Leading Variations in H1 Tags Relevancy | -0.16 | 2 | 1 | 31 % | 78 % |
| 91 | Variations in OpenGraph Title Relevancy | -0.16 | 11 | 2 | 57 % | 76 % |
| 92 | Has Entities in H2 Tags Relevancy | -0.15 | 1 | 1 | 57 % | 57 % |
| 93 | Variations in Main Tags Relevancy | -0.15 | 15491 | 85 | 34 % | 87 % |
| 94 | DomDetailer Majestic Links Authority | -0.15 | 162172840 | 10251550 | 85 % | 30 % |
| 95 | Inline JavaScript Kilobytes Size | -0.15 | 158 | 35 | 88 % | 81 % |
| 96 | Leading Variations in Title Tag Relevancy | -0.15 | 1 | 1 | 36 % | 76 % |
| 97 | Number of Heading Tags Size | -0.15 | 66 | 21 | 89 % | 84 % |
| 98 | Ahrefs Has Dofollow Backlinks Authority | -0.15 | 1 | 1 | 44 % | 15 % |
| 99 | Title Tag Has Entities Relevancy | -0.15 | 1 | 1 | 78 % | 52 % |
| 100 | LSI Words in H1 Tags Relevancy | -0.15 | 17 | 4 | 65 % | 87 % |
| 101 | Ahrefs Has NoFollow Backlinks Authority | -0.15 | 1 | 1 | 49 % | 16 % |
| 102 | Exact Matches in H1-H6 Tags Relevancy | -0.15 | 12 | 2 | 28 % | 88 % |
| 103 | Number of Questions In Headings Size | -0.15 | 7 | 2 | 34 % | 42 % |
| 104 | Number of Images Size | -0.15 | 141 | 29 | 88 % | 84 % |
| 105 | Variations making whole A Tags Relevancy | -0.15 | 5 | 1 | 33 % | 85 % |
| 106 | DomDetailer Moz Rank Authority | -0.15 | 9 | 5 | 83 % | 26 % |
| 107 | Variations in Search Result Document File Name Relevancy | -0.15 | 13 | 2 | 60 % | 70 % |
| 108 | Leading Variations in H2 Tags Relevancy | -0.15 | 9 | 1 | 23 % | 86 % |
| 109 | Number of Questions Size | -0.15 | 17 | 5 | 60 % | 78 % |
| 110 | LSI Words in H3 Tags Relevancy | -0.15 | 176 | 14 | 53 % | 92 % |
| 111 | Variations Making Whole Span Tags Relevancy | -0.15 | 8 | 1 | 21 % | 84 % |
| 112 | Variations Making Whole LI Tags Relevancy | -0.14 | 6 | 1 | 27 % | 82 % |
| 113 | Ahrefs Has Text Backlinks Authority | -0.14 | 1 | 1 | 52 % | 16 % |
| 114 | Variations in Section Tags Relevancy | -0.14 | 891 | 15 | 37 % | 86 % |
| 115 | Number of Absolute URLs Authority | -0.14 | 446 | 142 | 91 % | 80 % |
| 116 | Variations in the last 100 words Relevancy | -0.14 | 202 | 4 | 58 % | 80 % |
| 117 | Number of Images with ALT Text Size | -0.14 | 118 | 19 | 81 % | 84 % |
| 118 | Has Entities in H1 Tags Relevancy | -0.14 | 1 | 1 | 63 % | 53 % |
| 119 | Exact Matches in Top 30KB Relevancy | -0.14 | 36 | 3 | 31 % | 66 % |
| 120 | Ahrefs Has Backlinks Authority | -0.14 | 1 | 1 | 53 % | 16 % |
| 121 | Ahrefs Word Count Size | -0.14 | 3560 | 1096 | 54 % | 12 % |
| 122 | Variations making whole H1-H6 Tags Relevancy | -0.14 | 3 | 1 | 16 % | 77 % |
| 123 | Number Of JSON-LD Types Relevancy | -0.14 | 121 | 10 | 53 % | 73 % |
| 124 | Variations in TITLE Attributes Relevancy | -0.14 | 263 | 9 | 38 % | 86 % |
| 125 | DomDetailer Moz Links Authority | -0.14 | 113944228 | 15900428 | 84 % | 29 % |
| 126 | Variations in Footer Tags Relevancy | -0.14 | 3809 | 13 | 35 % | 86 % |
| 127 | Ahrefs Image Backlinks | -0.14 | 119751 | 2181 | 22 % | 15 % |
| 128 | Number of H2 Tags Size | -0.14 | 16 | 7 | 74 % | 85 % |
| 129 | Has Entities in H3 Tags Relevancy | -0.14 | 1 | 1 | 47 % | 55 % |
| 130 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.14 | 3 | 1 | 15 % | 75 % |
| 131 | Exact Matches in Title Tag Relevancy | -0.14 | 2 | 1 | 25 % | 81 % |
| 132 | Ahrefs Has Image Backlinks Authority | -0.14 | 1 | 1 | 20 % | 14 % |
| 133 | Variations in H4-H6 Tags Relevancy | -0.14 | 43 | 2 | 22 % | 85 % |
| 134 | Head Size Kilobytes Size | -0.13 | 120 | 41 | 89 % | 72 % |
| 135 | Variations in Strong Tags Relevancy | -0.13 | 114 | 3 | 30 % | 80 % |
| 136 | Number of H3 Tags Size | -0.13 | 56 | 8 | 66 % | 83 % |
| 137 | Meta Description Tag Has Entities Relevancy | -0.13 | 1 | 1 | 62 % | 51 % |
| 138 | Variations in H4 Tags Relevancy | -0.13 | 35 | 1 | 17 % | 84 % |
| 139 | Percentage of DoFollow Internal Links Authority | -0.13 | 98 | 77 | 89 % | 75 % |
| 140 | Leading Variations in H3 Tags Relevancy | -0.13 | 14 | 1 | 16 % | 84 % |
| 141 | Load Time Milliseconds Performance | -0.13 | 35955 | 2377 | 94 % | 69 % |
| 142 | Exact Matches in A Tags Relevancy | -0.13 | 65 | 3 | 23 % | 87 % |
| 143 | Variations in Article Tags Relevancy | -0.13 | 1491 | 21 | 32 % | 77 % |
| 144 | Number of External Links Authority | -0.13 | 73 | 18 | 85 % | 70 % |
| 145 | Keywords in pages most used phrase | -0.13 | 3 | 1 | 25 % | 76 % |
| 146 | Ahrefs Internal Links Authority | -0.13 | 385 | 86 | 59 % | 16 % |
| 147 | Inline CSS Kilobytes Size | -0.13 | 91 | 28 | 59 % | 76 % |
| 148 | Ahrefs Page Size Size | -0.13 | 81049 | 24094 | 55 % | 11 % |
| 149 | Headings Has Question Other | -0.13 | 1 | 1 | 32 % | 72 % |
| 150 | DomDetailer Majestic GOV Backlinks Authority | -0.13 | 20976584 | 3357500 | 40 % | 27 % |
| 151 | Number of H4 Tags Size | -0.12 | 31 | 5 | 43 % | 76 % |
| 152 | Ahrefs External Links Authority | -0.12 | 74 | 17 | 55 % | 16 % |
| 153 | Exact Matches in Sentences Relevancy | -0.12 | 25 | 2 | 23 % | 87 % |
| 154 | Search Result Number of Dirs in Path Other | -0.12 | 4 | 2 | 78 % | 61 % |
| 155 | Has FavIcon Technology | -0.12 | 1 | 1 | 76 % | 69 % |
| 156 | Variations in I Tags Relevancy | -0.12 | 80 | 3 | 22 % | 79 % |
| 157 | Has Schema Markup Relevancy | -0.12 | 1 | 1 | 61 % | 69 % |
| 158 | Number of Images without ALT Text Size | -0.12 | 34 | 10 | 66 % | 74 % |
| 159 | Number of Nofollow Links Authority | -0.12 | 34 | 6 | 35 % | 79 % |
| 160 | Variations in Class Attributes Relevancy | -0.12 | 6492 | 21 | 26 % | 77 % |
| 161 | Has Entities in H4 Tags Relevancy | -0.12 | 1 | 1 | 27 % | 51 % |
| 162 | Number of US Phone Numbers Trust | -0.12 | 142 | 7 | 39 % | 75 % |
| 163 | LSI Words in H4 Tags Relevancy | -0.12 | 46 | 6 | 33 % | 85 % |
| 164 | Number of DoFollow External Links Authority | -0.12 | 70 | 15 | 82 % | 67 % |
| 165 | Number of Questions In H2 Tags Size | -0.12 | 3 | 1 | 18 % | 76 % |
| 166 | Number of HREF Lang Tags Size | -0.12 | 22 | 2 | 10 % | 74 % |
| 167 | Variations making whole H1 Tags Relevancy | -0.12 | 1 | 1 | 10 % | 74 % |
| 168 | Variations in ID Attributes Relevancy | -0.12 | 717 | 3 | 13 % | 83 % |
| 169 | Ahrefs Linked Root Domains Authority | -0.12 | 21 | 6 | 58 % | 16 % |
| 170 | Number of Questions In H3 Tags Size | -0.12 | 3 | 1 | 13 % | 75 % |
| 171 | Title Has Sentiment Words Other | -0.12 | 1 | 1 | 15 % | 66 % |
| 172 | Meta Description Length Size | -0.12 | 3815 | 125 | 69 % | 71 % |
| 173 | Leading Variations in H4-H6 Tags Relevancy | -0.12 | 9 | 1 | 10 % | 78 % |
| 174 | Ahrefs Domain Rating Authority | -0.12 | 78 | 33 | 67 % | 13 % |
| 175 | Number of JavaScript Includes Technology | -0.12 | 28 | 14 | 86 % | 70 % |
| 176 | Title Has Sales Words Other | -0.12 | 1 | 1 | 14 % | 66 % |
| 177 | Has JSON-LD Answer | -0.12 | 1 | 1 | 4 % | 56 % |
| 178 | Has JSON-LD Question | -0.12 | 1 | 1 | 4 % | 56 % |
| 179 | Has JSON-LD AggregateRating | -0.12 | 1 | 1 | 6 % | 63 % |
| 180 | Number of NoFollow External Links Authority | -0.12 | 27 | 3 | 24 % | 78 % |
| 181 | Word Count in Meta Description Size | -0.12 | 602 | 21 | 69 % | 72 % |
| 182 | Exact Matches in H2 Tags Relevancy | -0.12 | 5 | 1 | 13 % | 86 % |
| 183 | Exact Matches in H1 Tags Relevancy | -0.12 | 2 | 1 | 19 % | 79 % |
| 184 | Average Words Per Sentence Size | -0.12 | 232 | 42 | 90 % | 70 % |
| 185 | Number of Social Pages Authority | -0.12 | 16 | 3 | 64 % | 71 % |
| 186 | Bytes To First P Tag Size | -0.11 | 84450 | 52816 | 99 % | 55 % |
| 187 | Variations in Button Tags Relevancy | -0.11 | 411 | 2 | 6 % | 81 % |
| 188 | Number of Forms Technology | -0.11 | 18 | 3 | 68 % | 66 % |
| 189 | Flesch Kincaid Reading Grade Level Other | -0.11 | 8 | 4 | 95 % | 34 % |
| 190 | Number of Facebook Accounts Authority | -0.11 | 4 | 1 | 33 % | 69 % |
| 191 | Number of Prices Size | -0.11 | 148 | 31 | 69 % | 11 % |
| 192 | Number Of Claimed Brands Other | -0.11 | 8 | 2 | 18 % | 59 % |
| 193 | Has US Phone Number Trust | -0.11 | 1 | 1 | 38 % | 61 % |
| 194 | Ahrefs Pages Size | -0.11 | 5 | 2 | 59 % | 16 % |
| 195 | Has Privacy Policy Trust | -0.11 | 1 | 1 | 55 % | 71 % |
| 196 | Has Apple Touch Icon Technology | -0.11 | 1 | 1 | 46 % | 63 % |
| 197 | Number of Social Accounts Authority | -0.11 | 7 | 2 | 48 % | 67 % |
| 198 | Variations in Aside Tags Relevancy | -0.11 | 1794 | 9 | 15 % | 76 % |
| 199 | Number of Instagram Pages Authority | -0.11 | 12 | 2 | 40 % | 72 % |
| 200 | Variations in Figure Tags Relevancy | -0.11 | 6549 | 17 | 13 % | 75 % |