[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]
[ Wappalyzer API ]
SEO Factor ClassSize ( 54554 )Relevancy ( 54182 ) Other ( 36744 ) Local ( 9045 ) 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 ( 54550 )Keywords ( 42079 ) Schema ( 36690 ) Local ( 9046 ) 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 H3 Tags Size | -0.39 | 17 | 12 | 50 % | 33 % |
| 2 | Number of No Follow Backlinks Authority | -0.34 | 1965 | 659 | 39 % | 67 % |
| 3 | Number of Backlinks Authority | -0.33 | 7728 | 2760 | 46 % | 83 % |
| 4 | Number of Referring Domains Authority | -0.33 | 255 | 74 | 46 % | 83 % |
| 5 | Number of Do Follow Backlinks Authority | -0.31 | 7597 | 2234 | 40 % | 83 % |
| 6 | Clean Text Kilobytes Size | -0.3 | 24 | 17 | 73 % | 67 % |
| 7 | Number of Unique LSI Words Used Diversity | -0.3 | 1063 | 921 | 84 % | 50 % |
| 8 | Word Count Size | -0.3 | 3111 | 2166 | 84 % | 67 % |
| 9 | Has US Phone Number Trust | -0.29 | 1 | 1 | 45 % | 67 % |
| 10 | Flesch Kincaid Reading Grade Level Other | -0.28 | 5 | 3 | 85 % | 83 % |
| 11 | Number of HTTPS Links Authority | -0.27 | 236 | 154 | 79 % | 67 % |
| 12 | Number of Links Authority | -0.27 | 239 | 154 | 79 % | 67 % |
| 13 | Number of Internal Links Authority | -0.26 | 210 | 136 | 78 % | 67 % |
| 14 | Has Copyright Trust | -0.26 | 1 | 1 | 81 % | 33 % |
| 15 | Entities in H1 Tags | -0.26 | 5 | 3 | 57 % | 83 % |
| 16 | Number of Distinct Entities Used Diversity | -0.25 | 51 | 35 | 80 % | 83 % |
| 17 | Number Of Claimed Brands Other | -0.25 | 21 | 8 | 37 % | 67 % |
| 18 | Number of Unique Variations Used Diversity | -0.25 | 19 | 11 | 64 % | 83 % |
| 19 | Has Entities in H1 Tags Relevancy | -0.25 | 1 | 1 | 62 % | 100 % |
| 20 | Load Time Milliseconds Performance | -0.25 | 2015 | 1470 | 82 % | 67 % |
| 21 | Unabridged Word Count Size | -0.24 | 4278 | 2960 | 80 % | 83 % |
| 22 | Number of Images Size | -0.24 | 46 | 30 | 78 % | 83 % |
| 23 | Number of Questions In H2 Tags Size | -0.24 | 4 | 2 | 38 % | 67 % |
| 24 | Uses Schema postalcode Other | -0.24 | 1 | 1 | 37 % | 67 % |
| 25 | Uses Microdata telephone Other | -0.23 | 1 | 1 | 3 % | 17 % |
| 26 | Uses JSON-LD name Other | -0.23 | 1 | 1 | 72 % | 50 % |
| 27 | Percentage of DoFollow Internal Links Authority | -0.23 | 82 | 80 | 82 % | 33 % |
| 28 | Entities in H2 Tags | -0.23 | 32 | 15 | 61 % | 100 % |
| 29 | Entities in H3 Tags | -0.23 | 23 | 10 | 40 % | 67 % |
| 30 | Variations in H1 and H2 Tags Relevancy | -0.22 | 12 | 7 | 67 % | 83 % |
| 31 | Has Contact Page Trust | -0.22 | 1 | 1 | 48 % | 67 % |
| 32 | Variations in Search Result Document File Name Relevancy | -0.22 | 2 | 1 | 45 % | 100 % |
| 33 | Number of H1 Tags Size | -0.22 | 2 | 1 | 70 % | 100 % |
| 34 | Number of US Phone Numbers Trust | -0.22 | 18 | 10 | 45 % | 67 % |
| 35 | Uses JSON-LD BreadcrumbList Other | -0.22 | 1 | 1 | 45 % | 67 % |
| 36 | Has Meta Viewport Technology | -0.22 | 1 | 1 | 74 % | 50 % |
| 37 | Has OpenGraph Type Relevancy | -0.22 | 1 | 1 | 61 % | 50 % |
| 38 | Has JSON-LD Schema Markup Relevancy | -0.22 | 1 | 1 | 71 % | 50 % |
| 39 | Uses Schema addresslocality Other | -0.22 | 1 | 1 | 38 % | 67 % |
| 40 | Uses Schema addressregion Other | -0.21 | 1 | 1 | 31 % | 83 % |
| 41 | Number of Images with ALT Text Size | -0.21 | 38 | 19 | 68 % | 100 % |
| 42 | Entities in the HTML Tag Relevancy | -0.21 | 577 | 269 | 78 % | 100 % |
| 43 | Number of Meta Generator Tags Technology | -0.21 | 2 | 2 | 40 % | 67 % |
| 44 | Has Entities in H2 Tags Relevancy | -0.21 | 1 | 1 | 67 % | 83 % |
| 45 | Uses Schema website Other | -0.21 | 1 | 1 | 35 % | 67 % |
| 46 | Percentage of DoFollow External Links Authority | -0.21 | 18 | 13 | 73 % | 83 % |
| 47 | Uses JSON-LD address Other | -0.21 | 1 | 1 | 3 % | 17 % |
| 48 | Uses JSON-LD ListItem Other | -0.21 | 1 | 1 | 46 % | 67 % |
| 49 | Uses Microdata LegalService Other | -0.21 | 1 | 1 | 2 % | 17 % |
| 50 | Variations in H1, H2, and H3 Tags Relevancy | -0.21 | 19 | 10 | 68 % | 67 % |
| 51 | Inline CSS Kilobytes Size | -0.21 | 91 | 75 | 67 % | 67 % |
| 52 | Variations making whole H1 Tags Relevancy | -0.2 | 1 | 1 | 16 % | 83 % |
| 53 | Variations in H2 Tags Relevancy | -0.2 | 11 | 6 | 59 % | 83 % |
| 54 | Entities in Sentences Relevancy | -0.2 | 572 | 264 | 75 % | 100 % |
| 55 | Leading Variations in H1-H6 Tags Relevancy | -0.2 | 3 | 2 | 57 % | 83 % |
| 56 | Number of Factors Used Diversity | -0.2 | 279 | 230 | 91 % | 83 % |
| 57 | Uses Schema breadcrumblist Other | -0.2 | 1 | 1 | 48 % | 67 % |
| 58 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.2 | 3 | 2 | 57 % | 83 % |
| 59 | Exact Matches in the HTML Tag Relevancy | -0.2 | 9 | 4 | 34 % | 100 % |
| 60 | Variations in H1-H6 Tags Relevancy | -0.2 | 22 | 11 | 69 % | 67 % |
| 61 | Variations in LI Tags Relevancy | -0.19 | 75 | 38 | 70 % | 83 % |
| 62 | Has Canonical URL Authority | -0.19 | 1 | 1 | 65 % | 50 % |
| 63 | Search Result Domain Length Size | -0.19 | 19 | 17 | 82 % | 100 % |
| 64 | Search Result Host Length Size | -0.19 | 19 | 17 | 82 % | 100 % |
| 65 | Uses JSON-LD SearchAction Other | -0.19 | 1 | 1 | 32 % | 67 % |
| 66 | Uses Schema streetaddress Other | -0.19 | 1 | 1 | 38 % | 67 % |
| 67 | Variations in A Tags Relevancy | -0.19 | 79 | 34 | 68 % | 83 % |
| 68 | Entities in Title Tag Relevancy | -0.19 | 8 | 5 | 75 % | 83 % |
| 69 | Number of Top 200 Shared Factors Used Diversity | -0.19 | 49 | 39 | 90 % | 100 % |
| 70 | Search Result Uses HTTPS Other | -0.19 | 1 | 1 | 79 % | 67 % |
| 71 | Has FavIcon Technology | -0.19 | 1 | 1 | 68 % | 50 % |
| 72 | Number of External Links Authority | -0.19 | 30 | 19 | 73 % | 100 % |
| 73 | Uses JSON-LD contactOption Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 74 | Uses Microdata addressCountry Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 75 | Uses Microdata geo Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 76 | Uses Microdata GeoCoordinates Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 77 | Uses Microdata latitude Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 78 | Uses Microdata longitude Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 79 | Headings Has Question Other | -0.19 | 1 | 1 | 39 % | 83 % |
| 80 | Uses Schema attorney Other | -0.19 | 1 | 1 | 7 % | 50 % |
| 81 | Uses Schema contactoption Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 82 | Uses Schema geo Other | -0.19 | 1 | 1 | 2 % | 17 % |
| 83 | Uses Schema listitem Other | -0.19 | 1 | 1 | 48 % | 67 % |
| 84 | Variations in Search Result URL Path Relevancy | -0.19 | 2 | 1 | 46 % | 100 % |
| 85 | Has Meta Charset Technology | -0.19 | 1 | 1 | 74 % | 67 % |
| 86 | Uses JSON-LD streetAddress Other | -0.19 | 1 | 1 | 37 % | 67 % |
| 87 | Number of H2 Tags Size | -0.19 | 14 | 9 | 69 % | 100 % |
| 88 | Uses Schema name Other | -0.19 | 1 | 1 | 76 % | 50 % |
| 89 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.19 | 1 | 1 | 23 % | 83 % |
| 90 | Uses JSON-LD postalCode Other | -0.19 | 1 | 1 | 35 % | 83 % |
| 91 | Number of Heading Tags Size | -0.19 | 38 | 23 | 69 % | 83 % |
| 92 | Is Home Page Other | -0.19 | 1 | 1 | 10 % | 67 % |
| 93 | Variations making whole H1-H6 Tags Relevancy | -0.18 | 1 | 1 | 24 % | 83 % |
| 94 | Number of DoFollow Links Authority | -0.18 | 237 | 131 | 77 % | 100 % |
| 95 | Uses Schema legalservice Other | -0.18 | 1 | 1 | 38 % | 50 % |
| 96 | Has Privacy Policy Trust | -0.18 | 1 | 1 | 57 % | 67 % |
| 97 | Variations in the Title Tag Relevancy | -0.18 | 2 | 2 | 70 % | 67 % |
| 98 | Search Result Summary Length Size | -0.18 | 153 | 149 | 90 % | 83 % |
| 99 | Number of Images without ALT Text Size | -0.18 | 20 | 9 | 51 % | 83 % |
| 100 | Number of DoFollow External Links Authority | -0.18 | 30 | 18 | 72 % | 100 % |
| 101 | Number of Top 100 Shared Factors Used Diversity | -0.18 | 37 | 29 | 90 % | 100 % |
| 102 | Uses JSON-LD Campground Other | -0.18 | 1 | 1 | 1 % | 17 % |
| 103 | Uses JSON-LD mainEntity Other | -0.18 | 1 | 1 | 1 % | 17 % |
| 104 | Uses Microdata logo Other | -0.18 | 1 | 1 | 2 % | 33 % |
| 105 | Uses Schema campground Other | -0.18 | 1 | 1 | 1 % | 17 % |
| 106 | Uses Schema servicetype Other | -0.18 | 1 | 1 | 6 % | 33 % |
| 107 | Uses JSON-LD Attorney Other | -0.18 | 1 | 1 | 6 % | 50 % |
| 108 | Uses Schema telephone Other | -0.18 | 1 | 1 | 41 % | 67 % |
| 109 | Uses Schema postaladdress Other | -0.18 | 1 | 1 | 32 % | 83 % |
| 110 | Average Words Per Sentence Size | -0.18 | 45 | 26 | 76 % | 100 % |
| 111 | Uses JSON-LD addressRegion Other | -0.18 | 1 | 1 | 29 % | 100 % |
| 112 | Uses Schema url Other | -0.18 | 1 | 1 | 59 % | 50 % |
| 113 | Exact Matches in Sentences Relevancy | -0.18 | 3 | 2 | 28 % | 83 % |
| 114 | Uses JSON-LD PostalAddress Other | -0.18 | 1 | 1 | 31 % | 83 % |
| 115 | Search Result URL Length Size | -0.18 | 79 | 64 | 89 % | 33 % |
| 116 | Leading Variations in H1 Tags Relevancy | -0.18 | 1 | 1 | 37 % | 100 % |
| 117 | Number of P Tags Size | -0.18 | 72 | 51 | 71 % | 100 % |
| 118 | TF/IDF Relevancy | -0.17 | 1 | 1 | 52 % | 83 % |
| 119 | Uses JSON-LD LegalService | -0.17 | 1 | 1 | 38 % | 50 % |
| 120 | Is Article Page Other | -0.17 | 1 | 1 | 54 % | 67 % |
| 121 | Uses Schema pricerange Other | -0.17 | 1 | 1 | 27 % | 67 % |
| 122 | Number of Forms Technology | -0.17 | 2 | 2 | 56 % | 83 % |
| 123 | Variations in Form Tags Relevancy | -0.17 | 3 | 2 | 23 % | 83 % |
| 124 | Uses JSON-LD addressLocality Other | -0.17 | 1 | 1 | 36 % | 83 % |
| 125 | Uses JSON-LD description Other | -0.17 | 1 | 1 | 48 % | 83 % |
| 126 | Has Entities in H3 Tags Relevancy | -0.17 | 1 | 1 | 46 % | 83 % |
| 127 | Uses JSON-LD award Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 128 | Uses JSON-LD NewsArticle Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 129 | Uses JSON-LD OrganizationRole Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 130 | Uses JSON-LD SearchResultsPage Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 131 | Uses JSON-LD specialty Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 132 | Uses Microdata CompleteDataFeed Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 133 | Uses Microdata dataFeedElement Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 134 | Uses Microdata DataFeedItem Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 135 | Uses Schema award Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 136 | Uses Schema completedatafeed Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 137 | Uses Schema datafeedelement Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 138 | Uses Schema datafeeditem Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 139 | Uses Schema newsarticle Other | -0.17 | 1 | 1 | 1 % | 17 % |
| 140 | Uses Schema organizationrole Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 141 | Uses Schema searchresultspage Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 142 | Uses Schema specialty Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 143 | Number of Top 50 Shared Factors Used Diversity | -0.17 | 15 | 12 | 90 % | 100 % |
| 144 | Uses JSON-LD ProfessionalService Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 145 | Uses Schema professionalservice Other | -0.17 | 1 | 1 | 1 % | 33 % |
| 146 | Uses JSON-LD priceRange Other | -0.17 | 1 | 1 | 27 % | 67 % |
| 147 | Leading Variations in H2 Tags Relevancy | -0.16 | 1 | 1 | 28 % | 83 % |
| 148 | Number Of JSON-LD Types Relevancy | -0.16 | 54 | 34 | 72 % | 50 % |
| 149 | Uses Schema image Other | -0.16 | 1 | 1 | 39 % | 50 % |
| 150 | Title Tag Has Entities Relevancy | -0.16 | 1 | 1 | 74 % | 67 % |
| 151 | Variations in OpenGraph Title Relevancy | -0.16 | 2 | 2 | 61 % | 67 % |
| 152 | Term Frequency Relevancy | -0.16 | 4 | 3 | 67 % | 100 % |
| 153 | Leading Variations in Title Tag Relevancy | -0.16 | 1 | 1 | 42 % | 100 % |
| 154 | Variations in Class Attributes Relevancy | -0.16 | 9 | 3 | 16 % | 100 % |
| 155 | Variations in H1 Tags Relevancy | -0.16 | 2 | 1 | 49 % | 83 % |
| 156 | Variations in Section Tags Relevancy | -0.16 | 62 | 28 | 40 % | 100 % |
| 157 | Uses JSON-LD ScholarlyArticle Other | -0.16 | 1 | 1 | 1 % | 17 % |
| 158 | Uses JSON-LD telePhone Other | -0.16 | 1 | 1 | 32 % | 67 % |
| 159 | Uses Microdata dateCreated Other | -0.16 | 1 | 1 | 1 % | 33 % |
| 160 | Uses Schema scholarlyarticle Other | -0.16 | 1 | 1 | 1 % | 17 % |
| 161 | Uses Schema searchaction Other | -0.16 | 1 | 1 | 33 % | 83 % |
| 162 | Number of CSS Includes Technology | -0.16 | 12 | 9 | 75 % | 67 % |
| 163 | Percentage of NoFollow Links Authority | -0.16 | 3 | 2 | 21 % | 67 % |
| 164 | Variations in ALT Attributes Relevancy | -0.16 | 12 | 6 | 42 % | 100 % |
| 165 | Has DocType Tag Technology | -0.16 | 1 | 1 | 71 % | 50 % |
| 166 | Has Meta Twitter Card Authority | -0.16 | 1 | 1 | 51 % | 67 % |
| 167 | Uses JSON-LD url Other | -0.16 | 1 | 1 | 59 % | 67 % |
| 168 | Uses Schema organization Other | -0.16 | 1 | 1 | 43 % | 67 % |
| 169 | Uses JSON-LD Article Other | -0.15 | 1 | 1 | 7 % | 50 % |
| 170 | Number of Facebook Pages Authority | -0.15 | 3 | 2 | 56 % | 67 % |
| 171 | Number of NoFollow External Links Authority | -0.15 | 2 | 2 | 18 % | 67 % |
| 172 | Uses Schema hasmap Other | -0.15 | 1 | 1 | 16 % | 67 % |
| 173 | Has Google Verify Technology | -0.15 | 1 | 1 | 22 % | 83 % |
| 174 | Variations in Strong Tags Relevancy | -0.15 | 5 | 3 | 27 % | 83 % |
| 175 | Number of Questions In Headings Size | -0.15 | 7 | 3 | 39 % | 83 % |
| 176 | Variations in I Tags Relevancy | -0.15 | 7 | 4 | 20 % | 100 % |
| 177 | Uses JSON-LD WebSite Other | -0.15 | 1 | 1 | 20 % | 83 % |
| 178 | Variations in the Canonical URL Relevancy | -0.15 | 3 | 2 | 45 % | 83 % |
| 179 | Uses JSON-LD ContactPoint Other | -0.15 | 1 | 1 | 8 % | 67 % |
| 180 | Uses JSON-LD Hotel Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 181 | Uses JSON-LD image Other | -0.15 | 1 | 1 | 27 % | 50 % |
| 182 | Uses JSON-LD QuantitativeValue Other | -0.15 | 1 | 1 | 2 % | 33 % |
| 183 | Uses Microdata additionalName Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 184 | Uses Microdata agentInteractionStatistic Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 185 | Uses Microdata alternateName Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 186 | Uses Microdata Collection Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 187 | Uses Microdata commentCount Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 188 | Uses Microdata EntryPoint Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 189 | Uses Microdata hasPart Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 190 | Uses Microdata homeLocation Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 191 | Uses Microdata isPartOf Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 192 | Uses Microdata owns Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 193 | Uses Microdata Place Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 194 | Uses Microdata potentialAction Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 195 | Uses Microdata ProfilePage Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 196 | Uses Microdata relatedLink Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 197 | Uses Microdata SearchAction Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 198 | Uses Microdata sharedContent Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 199 | Uses Microdata SocialMediaPosting Other | -0.15 | 1 | 1 | 1 % | 17 % |
| 200 | Uses Microdata target Other | -0.15 | 1 | 1 | 1 % | 17 % |