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 Unique LSI Words Used Diversity | -0.27 | 748 | 273 | 82 % | 92 % |
| 2 | Exact Matches in H1-H6 Tags Relevancy | -0.24 | 2 | 1 | 22 % | 85 % |
| 3 | Number of Includes Technology | -0.24 | 35 | 25 | 72 % | 69 % |
| 4 | Number of Distinct Entities Used Diversity | -0.24 | 51 | 28 | 73 % | 100 % |
| 5 | Entities in Sentences Relevancy | -0.23 | 313 | 130 | 63 % | 100 % |
| 6 | Entities in the HTML Tag Relevancy | -0.23 | 327 | 135 | 70 % | 100 % |
| 7 | Number of CSS Includes Technology | -0.23 | 13 | 9 | 66 % | 69 % |
| 8 | Variations in H1-H6 Tags Relevancy | -0.23 | 17 | 7 | 61 % | 92 % |
| 9 | Number of Top 100 Shared Factors Used Diversity | -0.23 | 37 | 29 | 95 % | 100 % |
| 10 | Variations in P Tags Relevancy | -0.23 | 52 | 25 | 59 % | 100 % |
| 11 | Number of Top 200 Shared Factors Used Diversity | -0.22 | 49 | 39 | 95 % | 100 % |
| 12 | Entities in H1 Tags | -0.22 | 4 | 2 | 51 % | 100 % |
| 13 | Number of P Tags Size | -0.22 | 53 | 38 | 68 % | 92 % |
| 14 | LSI Words in Sentences Relevancy | -0.22 | 1665 | 650 | 67 % | 100 % |
| 15 | Number of Facebook Pages Authority | -0.22 | 4 | 2 | 55 % | 100 % |
| 16 | Number of HTML Tags Size | -0.22 | 1120 | 929 | 84 % | 92 % |
| 17 | Variations in Div Tags Relevancy | -0.21 | 235 | 120 | 72 % | 100 % |
| 18 | Exact Matches in H2 Tags Relevancy | -0.21 | 1 | 1 | 11 % | 69 % |
| 19 | Variations in H1, H2, and H3 Tags Relevancy | -0.21 | 14 | 6 | 60 % | 92 % |
| 20 | Number of Top 50 Shared Factors Used Diversity | -0.21 | 15 | 12 | 95 % | 100 % |
| 21 | Variations in H1 and H2 Tags Relevancy | -0.21 | 7 | 4 | 59 % | 92 % |
| 22 | Number of Do Follow Backlinks Authority | -0.21 | 862913 | 81506 | 33 % | 77 % |
| 23 | Exact Matches in Sentences Relevancy | -0.21 | 12 | 3 | 23 % | 92 % |
| 24 | Unabridged Word Count Size | -0.21 | 2352 | 1671 | 83 % | 92 % |
| 25 | Word Count Size | -0.21 | 1931 | 1338 | 83 % | 92 % |
| 26 | Clean Text Kilobytes Size | -0.21 | 18 | 11 | 69 % | 92 % |
| 27 | LSI Words in H1 Tags Relevancy | -0.21 | 8 | 5 | 60 % | 92 % |
| 28 | Number of HTTPS Links Authority | -0.2 | 160 | 110 | 75 % | 92 % |
| 29 | Number of Links Authority | -0.2 | 161 | 113 | 76 % | 92 % |
| 30 | Number of Internal Links Authority | -0.2 | 153 | 102 | 75 % | 92 % |
| 31 | Exact Matches in Title Tag Relevancy | -0.2 | 1 | 1 | 23 % | 92 % |
| 32 | Variations in Span Tags Relevancy | -0.2 | 23 | 9 | 53 % | 85 % |
| 33 | Number of DoFollow Links Authority | -0.2 | 157 | 110 | 76 % | 92 % |
| 34 | Uses JSON-LD duration Other | -0.2 | 1 | 1 | 2 % | 15 % |
| 35 | Variations in A Tag HREF Attributes Relevancy | -0.2 | 87 | 45 | 60 % | 92 % |
| 36 | Leading Variations in H1-H6 Tags Relevancy | -0.2 | 5 | 2 | 40 % | 92 % |
| 37 | Variations in Distinct A Tag HREF Attributes Relevancy | -0.2 | 51 | 29 | 60 % | 92 % |
| 38 | Variations in A Tags Relevancy | -0.2 | 53 | 24 | 57 % | 92 % |
| 39 | Variations in Body Tags Relevancy | -0.2 | 555 | 246 | 78 % | 100 % |
| 40 | Variations in HTML Tags Relevancy | -0.2 | 555 | 248 | 78 % | 100 % |
| 41 | Number of LinkedIn Pages Authority | -0.2 | 2 | 1 | 27 % | 77 % |
| 42 | Variations in Search Result Document File Name Relevancy | -0.19 | 2 | 1 | 40 % | 85 % |
| 43 | Variations in the Canonical URL Relevancy | -0.19 | 3 | 2 | 50 % | 100 % |
| 44 | Entities in H3 Tags | -0.19 | 11 | 6 | 39 % | 100 % |
| 45 | Entities in H2 Tags | -0.19 | 19 | 6 | 46 % | 100 % |
| 46 | Number of Referring Domains Authority | -0.19 | 364 | 48 | 35 % | 92 % |
| 47 | Number of Nofollow Links Authority | -0.19 | 8 | 3 | 18 % | 77 % |
| 48 | Number of Instagram Pages Authority | -0.19 | 8 | 3 | 44 % | 92 % |
| 49 | Number of Backlinks Authority | -0.19 | 863775 | 68159 | 35 % | 92 % |
| 50 | Number of Heading Tags Size | -0.18 | 29 | 21 | 68 % | 100 % |
| 51 | Load Time Milliseconds Performance | -0.18 | 4874 | 2020 | 84 % | 85 % |
| 52 | Number of US Phone Numbers Trust | -0.18 | 9 | 3 | 35 % | 85 % |
| 53 | Variations in ALT Attributes Relevancy | -0.18 | 31 | 10 | 48 % | 92 % |
| 54 | Variations in LI Tags Relevancy | -0.18 | 30 | 18 | 62 % | 92 % |
| 55 | Leading Variations in H1, H2, and H3 Tags Relevancy | -0.18 | 4 | 2 | 37 % | 92 % |
| 56 | Number of No Follow Backlinks Authority | -0.18 | 862 | 136 | 25 % | 62 % |
| 57 | Variations in Absolute URLs Relevancy | -0.18 | 208 | 81 | 61 % | 100 % |
| 58 | Number of Factors Used Diversity | -0.18 | 257 | 184 | 95 % | 100 % |
| 59 | Variations in H1 Tags Relevancy | -0.18 | 2 | 2 | 52 % | 92 % |
| 60 | Number of Unique Variations Used Diversity | -0.18 | 15 | 7 | 79 % | 100 % |
| 61 | Uses RDFa BreadcrumbList Other | -0.18 | 1 | 1 | 2 % | 31 % |
| 62 | Variations making whole H1-H6 Tags Relevancy | -0.18 | 1 | 1 | 13 % | 77 % |
| 63 | Number of H2 Tags Size | -0.18 | 9 | 6 | 61 % | 100 % |
| 64 | Number of Absolute URLs Authority | -0.18 | 322 | 272 | 80 % | 69 % |
| 65 | Number of Images with ALT Text Size | -0.18 | 30 | 19 | 65 % | 100 % |
| 66 | Number of Facebook Accounts Authority | -0.18 | 2 | 1 | 26 % | 85 % |
| 67 | Exact Matches in the HTML Tag Relevancy | -0.17 | 21 | 7 | 35 % | 100 % |
| 68 | LSI Words in H3 Tags Relevancy | -0.17 | 43 | 19 | 50 % | 85 % |
| 69 | Has Entities in H1 Tags Relevancy | -0.17 | 1 | 1 | 52 % | 100 % |
| 70 | Percentage of NoFollow Links Authority | -0.17 | 5 | 2 | 17 % | 77 % |
| 71 | Variations in H2 Tags Relevancy | -0.17 | 6 | 3 | 42 % | 92 % |
| 72 | Has JSON-LD Schema Markup Relevancy | -0.17 | 1 | 1 | 48 % | 92 % |
| 73 | Variations making whole H1 Tags Relevancy | -0.17 | 1 | 1 | 7 % | 69 % |
| 74 | LSI Words in H2 Tags Relevancy | -0.17 | 57 | 18 | 54 % | 100 % |
| 75 | Flesch Kincaid Reading Grade Level Other | -0.17 | 5 | 2 | 89 % | 85 % |
| 76 | Number of Images Size | -0.17 | 41 | 28 | 69 % | 100 % |
| 77 | Entities in H4 Tags | -0.17 | 5 | 3 | 23 % | 100 % |
| 78 | Has Entities in H3 Tags Relevancy | -0.17 | 1 | 1 | 40 % | 92 % |
| 79 | Uses Microdata Offer Other | -0.17 | 1 | 1 | 1 % | 31 % |
| 80 | Uses Microdata offers Other | -0.17 | 1 | 1 | 1 % | 31 % |
| 81 | Number of H3 Tags Size | -0.17 | 11 | 8 | 57 % | 85 % |
| 82 | Variation Count in Top 30KB Relevancy | -0.17 | 51 | 27 | 68 % | 85 % |
| 83 | Exact Matches in H1 Tags Relevancy | -0.17 | 1 | 1 | 18 % | 92 % |
| 84 | Search Result Domain is .com, .net, or .org Other | -0.17 | 1 | 1 | 4 % | 85 % |
| 85 | Term Frequency Relevancy | -0.17 | 4 | 3 | 78 % | 100 % |
| 86 | Has Meta Twitter Site Authority | -0.17 | 1 | 1 | 22 % | 38 % |
| 87 | Number of Sentences Size | -0.17 | 197 | 125 | 82 % | 92 % |
| 88 | Uses Microdata Review | -0.17 | 1 | 1 | 2 % | 15 % |
| 89 | Uses Microdata reviewBody Other | -0.17 | 1 | 1 | 2 % | 15 % |
| 90 | Uses Microdata price Other | -0.17 | 1 | 1 | 2 % | 31 % |
| 91 | Exact Matches in A Tags Relevancy | -0.16 | 9 | 3 | 22 % | 69 % |
| 92 | Page Size Kilobytes Size | -0.16 | 530 | 338 | 79 % | 54 % |
| 93 | Variations in Figure Tags Relevancy | -0.16 | 14 | 5 | 12 % | 77 % |
| 94 | Variations Making Whole Span Tags Relevancy | -0.16 | 1 | 1 | 16 % | 92 % |
| 95 | TF/IDF Relevancy | -0.16 | 1 | 1 | 59 % | 100 % |
| 96 | Number of Questions In Headings Size | -0.16 | 4 | 2 | 30 % | 77 % |
| 97 | Exact Matches in Top 30KB Relevancy | -0.16 | 3 | 2 | 21 % | 85 % |
| 98 | Exact Matches making whole H1-H6 Tags Relevancy | -0.16 | 1 | 1 | 5 % | 92 % |
| 99 | Leading Variations in Title Tag Relevancy | -0.16 | 1 | 1 | 31 % | 77 % |
| 100 | Variations in H3 Tags Relevancy | -0.16 | 7 | 3 | 35 % | 85 % |
| 101 | Variations in Sentences Relevancy | -0.16 | 61 | 30 | 68 % | 100 % |
| 102 | Uses Schema author Other | -0.16 | 1 | 1 | 8 % | 15 % |
| 103 | Search Result Domain Length Size | -0.16 | 22 | 18 | 83 % | 85 % |
| 104 | Search Result Host Length Size | -0.16 | 22 | 18 | 83 % | 85 % |
| 105 | Entities in Title Tag Relevancy | -0.16 | 6 | 3 | 66 % | 92 % |
| 106 | Variations making whole H1, H2, and H3 Tags Relevancy | -0.16 | 1 | 1 | 11 % | 77 % |
| 107 | Number of Social Pages Authority | -0.16 | 11 | 5 | 62 % | 85 % |
| 108 | Exact Matches making whole H1, H2, and H3 Tags Relevancy | -0.16 | 1 | 1 | 5 % | 92 % |
| 109 | Variations in Search Result URL Path Relevancy | -0.16 | 2 | 2 | 45 % | 92 % |
| 110 | Uses JSON-LD disambiguatingDescription | -0.16 | 1 | 1 | 2 % | 23 % |
| 111 | Uses Schema disambiguatingdescription Other | -0.16 | 1 | 1 | 2 % | 23 % |
| 112 | Has Email Trust | -0.16 | 1 | 1 | 38 % | 77 % |
| 113 | Number of Prices Size | -0.16 | 100 | 66 | 70 % | 77 % |
| 114 | Is Pagination Page Other | -0.16 | 1 | 1 | 15 % | 69 % |
| 115 | Search Result Domain is .com Other | -0.16 | 1 | 1 | 3 % | 85 % |
| 116 | Has Google Verify Technology | -0.16 | 1 | 1 | 16 % | 62 % |
| 117 | Uses JSON-LD model Other | -0.16 | 1 | 1 | 1 % | 15 % |
| 118 | Uses Schema model Other | -0.16 | 1 | 1 | 1 % | 15 % |
| 119 | Variations in TITLE Attributes Relevancy | -0.15 | 18 | 7 | 41 % | 69 % |
| 120 | Has Entities in H2 Tags Relevancy | -0.15 | 1 | 1 | 47 % | 100 % |
| 121 | Number of H4 Tags Size | -0.15 | 9 | 5 | 36 % | 100 % |
| 122 | Search Result Uses HTTPS Other | -0.15 | 1 | 1 | 81 % | 77 % |
| 123 | Variations in OpenGraph Description Relevancy | -0.15 | 3 | 2 | 49 % | 62 % |
| 124 | Has Meta Twitter Card Authority | -0.15 | 1 | 1 | 53 % | 38 % |
| 125 | Entities in Meta Description Tag Relevancy | -0.15 | 6 | 3 | 54 % | 85 % |
| 126 | Has Entities in H4 Tags Relevancy | -0.15 | 1 | 1 | 24 % | 92 % |
| 127 | Variations in Search Result URL Relevancy | -0.15 | 2 | 2 | 54 % | 77 % |
| 128 | Variations in H4-H6 Tags Relevancy | -0.15 | 3 | 2 | 20 % | 85 % |
| 129 | Leading Variations in H1 Tags Relevancy | -0.15 | 1 | 1 | 24 % | 92 % |
| 130 | Number of NoFollow External Links Authority | -0.15 | 3 | 2 | 13 % | 85 % |
| 131 | Uses JSON-LD serviceType Other | -0.15 | 1 | 1 | 4 % | 38 % |
| 132 | Uses Microdata availability Other | -0.15 | 1 | 1 | 1 % | 23 % |
| 133 | Uses Microdata bestRating Other | -0.15 | 1 | 1 | 2 % | 23 % |
| 134 | Uses Microdata priceCurrency Other | -0.15 | 1 | 1 | 1 % | 23 % |
| 135 | Uses Schema availability Other | -0.15 | 1 | 1 | 3 % | 46 % |
| 136 | Uses Schema servicetype Other | -0.15 | 1 | 1 | 5 % | 38 % |
| 137 | Number of Meta Generator Tags Technology | -0.15 | 1 | 1 | 31 % | 69 % |
| 138 | Number of Email Addresses Trust | -0.15 | 7 | 3 | 40 % | 92 % |
| 139 | Uses RDFa item Other | -0.15 | 1 | 1 | 2 % | 46 % |
| 140 | Uses RDFa itemListElement Other | -0.15 | 1 | 1 | 2 % | 46 % |
| 141 | Uses RDFa ListItem Other | -0.15 | 1 | 1 | 2 % | 46 % |
| 142 | Uses RDFa position Other | -0.15 | 1 | 1 | 2 % | 46 % |
| 143 | Leading Variations in H2 Tags Relevancy | -0.15 | 3 | 1 | 18 % | 92 % |
| 144 | Variations in H4 Tags Relevancy | -0.15 | 3 | 2 | 15 % | 92 % |
| 145 | Percentage of NoFollow Internal Links Authority | -0.15 | 4 | 1 | 10 % | 69 % |
| 146 | Number of H1 Tags Size | -0.15 | 2 | 1 | 65 % | 92 % |
| 147 | Number of HTML Comments Size | -0.15 | 129 | 39 | 65 % | 85 % |
| 148 | Uses Schema offers Other | -0.15 | 1 | 1 | 1 % | 38 % |
| 149 | Variations in Script Tags Relevancy | -0.15 | 171 | 73 | 65 % | 69 % |
| 150 | Variations in First 100 Words Relevancy | -0.15 | 15 | 7 | 68 % | 100 % |
| 151 | Uses Microdata openingHours Other | -0.15 | 1 | 1 | 1 % | 15 % |
| 152 | Uses Schema thing Other | -0.15 | 1 | 1 | 12 % | 15 % |
| 153 | Number of External Links Authority | -0.15 | 18 | 11 | 73 % | 92 % |
| 154 | Uses JSON-LD height Other | -0.15 | 1 | 1 | 7 % | 31 % |
| 155 | Uses JSON-LD width Other | -0.15 | 1 | 1 | 7 % | 31 % |
| 156 | Percentage of NoFollow External Links Authority | -0.14 | 2 | 1 | 12 % | 85 % |
| 157 | Uses Microdata Product Other | -0.14 | 1 | 1 | 3 % | 38 % |
| 158 | Variations in Nav Tags Relevancy | -0.14 | 68 | 22 | 42 % | 100 % |
| 159 | Inline CSS Kilobytes Size | -0.14 | 109 | 60 | 66 % | 85 % |
| 160 | Variations in B Tags Relevancy | -0.14 | 5 | 2 | 10 % | 92 % |
| 161 | Leading Variations in H4 Tags Relevancy | -0.14 | 1 | 1 | 9 % | 69 % |
| 162 | LSI Words in Meta Description Tag Relevancy | -0.14 | 20 | 11 | 63 % | 100 % |
| 163 | Uses Schema name Other | -0.14 | 1 | 1 | 62 % | 62 % |
| 164 | LSI Words in H4 Tags Relevancy | -0.14 | 16 | 8 | 32 % | 100 % |
| 165 | Uses JSON-LD Answer Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 166 | Uses JSON-LD Question Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 167 | Uses Schema answer Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 168 | Uses Schema question Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 169 | LSI Words in Title Tag Relevancy | -0.14 | 13 | 7 | 74 % | 92 % |
| 170 | Uses JSON-LD category Other | -0.14 | 1 | 1 | 2 % | 38 % |
| 171 | Uses JSON-LD FAQPage Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 172 | Uses JSON-LD slogan Other | -0.14 | 1 | 1 | 2 % | 23 % |
| 173 | Uses Schema category Other | -0.14 | 1 | 1 | 2 % | 38 % |
| 174 | Uses Schema faqpage Other | -0.14 | 1 | 1 | 9 % | 54 % |
| 175 | Uses Schema slogan Other | -0.14 | 1 | 1 | 2 % | 23 % |
| 176 | Number of Questions In H3 Tags Size | -0.14 | 2 | 1 | 13 % | 77 % |
| 177 | Has Privacy Policy Trust | -0.14 | 1 | 1 | 58 % | 62 % |
| 178 | Number of Images without ALT Text Size | -0.14 | 18 | 10 | 55 % | 100 % |
| 179 | Variations in Button Tags Relevancy | -0.14 | 7 | 3 | 10 % | 85 % |
| 180 | Has Meta Charset Technology | -0.14 | 1 | 1 | 70 % | 100 % |
| 181 | Exact Matches in Meta Description Relevancy | -0.14 | 1 | 1 | 14 % | 92 % |
| 182 | Has US Phone Number Trust | -0.14 | 1 | 1 | 38 % | 85 % |
| 183 | Percentage of DoFollow Links Authority | -0.14 | 94 | 82 | 77 % | 85 % |
| 184 | Number of Questions Size | -0.14 | 14 | 10 | 64 % | 85 % |
| 185 | Uses JSON-LD availability Other | -0.14 | 1 | 1 | 3 % | 46 % |
| 186 | Exact Matches making whole H1 Tags Relevancy | -0.14 | 1 | 1 | 4 % | 92 % |
| 187 | Leading Variations in H4-H6 Tags Relevancy | -0.14 | 1 | 1 | 13 % | 77 % |
| 188 | Has OpenGraph Type Relevancy | -0.14 | 1 | 1 | 65 % | 62 % |
| 189 | Uses Schema duration Other | -0.14 | 1 | 1 | 9 % | 15 % |
| 190 | Uses Schema localbusiness Other | -0.14 | 1 | 1 | 8 % | 62 % |
| 191 | Uses JSON-LD CreativeWorkSeries Other | -0.14 | 1 | 1 | 1 % | 15 % |
| 192 | Uses Microdata ImageObject Other | -0.14 | 1 | 1 | 8 % | 15 % |
| 193 | Uses Schema creativeworkseries Other | -0.14 | 1 | 1 | 1 % | 15 % |
| 194 | Variations in Main Tags Relevancy | -0.13 | 88 | 45 | 31 % | 100 % |
| 195 | Has Schema Markup Relevancy | -0.13 | 1 | 1 | 67 % | 69 % |
| 196 | Uses Schema breadcrumblist Other | -0.13 | 1 | 1 | 45 % | 62 % |
| 197 | Number of Forms Technology | -0.13 | 3 | 2 | 47 % | 69 % |
| 198 | Uses Schema jobtitle Other | -0.13 | 1 | 1 | 1 % | 23 % |
| 199 | Number of Questions In H2 Tags Size | -0.13 | 2 | 1 | 19 % | 69 % |
| 200 | Uses Schema ratingvalue Other | -0.13 | 1 | 1 | 6 % | 62 % |
