Measures 151298 SEO Factors

149576 Built-In SEO Factors

140359 On-page SEO Factors

9217 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]

1575 Technology Stack SEO Factors

[ Wappalyzer API ]

The Cora Shared Data contains over 300 million SEO factor measurements and grows hourly.

Google Maps and Bing Factors are not yet available for viewing but will be coming soon!
Aggregate SEO Weather Top SEO Factors - Aggregate SEO Weather

TOP SEO Factors for 2026-07     previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Unique LSI Words Used   Diversity-0.2669920476 %75 %
2Entities in Title Tag   Relevancy-0.236356 %96 %
3Number of Top 100 Shared Factors Used   Diversity-0.22372693 %93 %
4Number of Top 200 Shared Factors Used   Diversity-0.22493593 %93 %
5Number of Unique Variations Used   Diversity-0.22591070 %86 %
6Number of Top 50 Shared Factors Used   Diversity-0.21161193 %93 %
7Number of Distinct Entities Used   Diversity-0.21572770 %95 %
8Number of Facebook Pages   Authority-0.214242 %89 %
9Load Time Milliseconds   Performance-0.2112601187979 %90 %
10Entities in the HTML Tag   Relevancy-0.2169012965 %96 %
11Variations in H1-H6 Tags   Relevancy-0.21215949 %84 %
12Has JSON-LD Schema Markup   Relevancy-0.211141 %80 %
13Entities in Sentences   Relevancy-0.2167412460 %96 %
14Number of Includes   Technology-0.21602570 %86 %
15Number of CSS Includes   Technology-0.2125962 %76 %
16Variations in H1, H2, and H3 Tags   Relevancy-0.21188848 %86 %
17Number of Factors Used   Diversity-0.2128316093 %89 %
18Entities in H2 Tags-0.2128638 %92 %
19Variations in H1 and H2 Tags   Relevancy-0.2123546 %85 %
20Entities in H1 Tags-0.24242 %94 %
21Variations in Search Result Document File Name   Relevancy-0.27139 %87 %
22Number of P Tags   Size-0.21733163 %89 %
23Number of Referring Domains   Authority-0.25973331 %90 %
24Variations in P Tags   Relevancy-0.240147649 %91 %
25Number of Heading Tags   Size-0.2501765 %84 %
26Number of Backlinks   Authority-0.2197596212531 %91 %
27Word Count   Size-0.195390124578 %87 %
28Variations in Div Tags   Relevancy-0.192762350659 %89 %
29Variations in LI Tags   Relevancy-0.1915123450 %87 %
30Number of Do Follow Backlinks   Authority-0.19188984190128 %89 %
31Variation Count in Top 30KB   Relevancy-0.1946877855 %82 %
32Variations in H1 Tags   Relevancy-0.1911140 %83 %
33Unabridged Word Count   Size-0.1956122210478 %87 %
34Variations in Sentences   Relevancy-0.1933067357 %91 %
35Has Meta Charset   Technology-0.191165 %78 %
36Search Result Number of Dirs in Path   Other-0.193272 %76 %
37Variations in Body Tags   Relevancy-0.1990453149768 %88 %
38Flesch Kincaid Reading Grade Level   Other-0.196186 %90 %
39Clean Text Kilobytes   Size-0.192841364 %85 %
40Number of H2 Tags   Size-0.1914655 %83 %
41Has Entities in H1 Tags   Relevancy-0.191143 %87 %
42Variations in A Tags   Relevancy-0.1933766651 %82 %
43LSI Words in Sentences   Relevancy-0.19248147455 %93 %
44Clean Keyword Density in the HTML Tag   Relevancy-0.19195759 %80 %
45Variations in Search Result URL Path   Relevancy-0.198241 %86 %
46Variations in H2 Tags   Relevancy-0.19117432 %82 %
47Entities in H3 Tags-0.1937732 %97 %
48Number of H1 Tags   Size-0.192159 %85 %
49Entities in Meta Description Tag   Relevancy-0.1812345 %89 %
50Number of Instagram Pages   Authority-0.1813232 %81 %
51Variations in HTML Tags   Relevancy-0.1890453144865 %91 %
52Leading Variations in H1, H2, and H3 Tags   Relevancy-0.185231 %83 %
53Leading Variations in H1-H6 Tags   Relevancy-0.185234 %83 %
54Number of Social Pages   Authority-0.1816450 %86 %
55Number of Images   Size-0.181652364 %85 %
56Number of No Follow Backlinks   Authority-0.182191024820 %87 %
57Number of HTML Tags   Size-0.18347090779 %87 %
58Number of HTTPS Links   Authority-0.1839711871 %85 %
59Term Frequency   Relevancy-0.186365 %89 %
60Number of Links   Authority-0.1839911971 %85 %
61Variations in OpenGraph Description   Relevancy-0.1829239 %80 %
62Search Result Domain is .com, .net, or .org   Other-0.18118 %85 %
63Search Result Domain is .com   Other-0.18117 %83 %
64Variations in OpenGraph Title   Relevancy-0.189144 %80 %
65Number of DoFollow Links   Authority-0.1839811671 %86 %
66Number of LinkedIn Pages   Authority-0.183123 %82 %
67Number Of JSON-LD Types   Relevancy-0.18701145 %84 %
68Variations in Absolute URLs   Relevancy-0.18439910650 %86 %
69Variations in Distinct A Tag HREF Attributes   Relevancy-0.1813453947 %85 %
70Variations in First 100 Words   Relevancy-0.18172856 %83 %
71Has Entities in H2 Tags   Relevancy-0.181140 %87 %
72Number of Internal Links   Authority-0.1837910570 %86 %
73Percentage of DoFollow Links   Authority-0.18997769 %84 %
74Variations in Search Result Display URL   Relevancy-0.1814269 %82 %
75Variations in Search Result Link Text   Relevancy-0.1814269 %82 %
76Title Tag Has Entities   Relevancy-0.181155 %85 %
77Number of Images with ALT Text   Size-0.18551459 %86 %
78Number of External Links   Authority-0.181351365 %89 %
79Variations in A Tag HREF Attributes   Relevancy-0.1722066047 %86 %
80Is Article Page   Other-0.171133 %73 %
81Average Words Per Sentence   Size-0.172873368 %83 %
82LSI Words in Title Tag   Relevancy-0.1710456 %93 %
83Has Meta Viewport   Technology-0.171173 %80 %
84Variations in the Canonical URL   Relevancy-0.1737242 %87 %
85Number of Facebook Accounts   Authority-0.172120 %82 %
86Number of HTML Comments   Size-0.172574562 %84 %
87Variations in Meta Description   Relevancy-0.1729244 %80 %
88Variations in Script Tags   Relevancy-0.172198634953 %85 %
89Number of Sentences   Size-0.1764411775 %85 %
90Search Result Uses HTTPS   Other-0.171176 %75 %
91Number of DoFollow External Links   Authority-0.171341264 %89 %
92Variations in Search Result URL   Relevancy-0.1723250 %80 %
93Uses JSON-LD name   Other-0.171142 %80 %
94Variations in the Title Tag   Relevancy-0.1711253 %85 %
95Variations in Footer Tags   Relevancy-0.1748965031 %79 %
96Number of Images without ALT Text   Size-0.17113947 %82 %
97Variation Density in Top 30KB   Relevancy-0.17303653 %80 %
98Variations in ALT Attributes   Relevancy-0.17170835 %76 %
99Page Size Kilobytes   Size-0.1785430675 %70 %
100Number of Questions In Headings   Size-0.176225 %83 %
101Variations in Span Tags   Relevancy-0.175231639 %86 %
102LSI Words in H1 Tags   Relevancy-0.178344 %91 %
103LSI Words in H2 Tags   Relevancy-0.17651341 %90 %
104Variations in Nav Tags   Relevancy-0.171181611537 %86 %
105Inline CSS Kilobytes   Size-0.171335659 %85 %
106Number of H3 Tags   Size-0.1737746 %90 %
107Variations in H3 Tags   Relevancy-0.1665426 %82 %
108Headings Has Question   Other-0.161125 %79 %
109Has FavIcon   Technology-0.161163 %74 %
110Number of JavaScript Includes   Technology-0.16431772 %83 %
111Has Canonical URL   Authority-0.161161 %72 %
112Variations in Main Tags   Relevancy-0.161021417329 %86 %
113Uses Schema organization   Other-0.161127 %71 %
114Variations in Search Result Summary   Relevancy-0.1648370 %78 %
115Number of Absolute URLs   Authority-0.16122122876 %76 %
116Uses JSON-LD description   Other-0.161133 %76 %
117Uses JSON-LD datePublished   Other-0.161125 %76 %
118Uses JSON-LD url   Other-0.161138 %80 %
119Search Result Domain Length   Size-0.16211678 %80 %
120Search Result Host Length   Size-0.16211678 %80 %
121Variations in Section Tags   Relevancy-0.1616062928 %90 %
122Uses JSON-LD ImageObject   Other-0.161124 %77 %
123Number of Social Accounts   Authority-0.164131 %87 %
124Uses Schema datemodified   Other-0.161123 %73 %
125Uses JSON-LD Organization   Other-0.161125 %73 %
126Number of US Phone Numbers   Trust-0.16212936 %84 %
127Uses JSON-LD dateModified   Other-0.161122 %75 %
128Percentage of DoFollow Internal Links   Authority-0.16886769 %81 %
129Is OpenGraph Type Article   Technology-0.161124 %73 %
130Has Apple Touch Icon   Technology-0.161138 %74 %
131Has US Phone Number   Trust-0.161136 %78 %
132Has Entities in H3 Tags   Relevancy-0.161132 %89 %
133Percentage of DoFollow External Links   Authority-0.15251161 %82 %
134Has Meta Description   Relevancy-0.151154 %67 %
135Leading Variations in H1 Tags   Relevancy-0.151120 %77 %
136TF/IDF   Relevancy-0.151146 %82 %
137Uses Schema name   Other-0.151148 %73 %
138Number of Questions   Size-0.15391053 %76 %
139Variations in the last 100 words   Relevancy-0.15177644 %77 %
140LSI Words in Meta Description Tag   Relevancy-0.1520745 %91 %
141Number of Forms   Technology-0.159244 %75 %
142Leading Variations in Title Tag   Relevancy-0.151124 %79 %
143Uses Schema url   Other-0.151144 %73 %
144Uses Schema datepublished   Other-0.151127 %65 %
145Uses Schema imageobject   Other-0.151128 %67 %
146Uses Schema description   Other-0.151137 %67 %
147Title Length   Size-0.151075074 %79 %
148LSI Words in H3 Tags   Relevancy-0.15651535 %93 %
149Uses Schema website   Other-0.151126 %67 %
150Number of Twitter Accounts   Authority-0.152115 %83 %
151Word Count in Meta Description   Size-0.15361754 %79 %
152Variations in Strong Tags   Relevancy-0.15129319 %84 %
153Uses JSON-LD WebPage   Other-0.151124 %75 %
154Has Form   Technology-0.151143 %72 %
155Uses JSON-LD headline   Other-0.151114 %73 %
156Uses Schema webpage   Other-0.151125 %74 %
157Inline JavaScript Kilobytes   Size-0.1556113470 %75 %
158Uses JSON-LD ListItem   Other-0.151127 %75 %
159Uses JSON-LD BreadcrumbList   Other-0.151127 %75 %
160Meta Description Length   Size-0.1523810654 %80 %
161Uses Schema headline   Other-0.151115 %70 %
162Has OpenGraph Type   Relevancy-0.151152 %75 %
163Variations making whole A Tags   Relevancy-0.155122 %81 %
164Title Word Count   Size-0.1516874 %78 %
165Has Schema Markup   Relevancy-0.141153 %71 %
166Meta Description Tag Has Entities   Relevancy-0.141143 %80 %
167Search Result Summary Length   Size-0.1416115091 %77 %
168Variations in Article Tags   Relevancy-0.1411512019 %82 %
169Variations Making Whole Span Tags   Relevancy-0.143115 %77 %
170Has OpenGraph Image   Relevancy-0.141146 %76 %
171Has Meta Twitter Card   Authority-0.141145 %75 %
172Leading Variations in H2 Tags   Relevancy-0.142117 %79 %
173Number of Questions In H2 Tags   Size-0.144116 %80 %
174Number of H4 Tags   Size-0.1410328 %81 %
175Uses Schema inlanguage   Other-0.141123 %70 %
176Has Contact Page   Trust-0.141153 %75 %
177Uses JSON-LD inLanguage   Other-0.141123 %72 %
178Variations Making Whole LI Tags   Relevancy-0.145120 %77 %
179Number of Email Addresses   Trust-0.1412437 %83 %
180Uses JSON-LD item   Other-0.141120 %72 %
181Number Of Claimed Brands   Other-0.1423217 %77 %
182Uses JSON-LD WebSite   Other-0.141123 %70 %
183Uses Schema item   Other-0.141124 %61 %
184Uses Schema listitem   Other-0.141131 %65 %
185Has Privacy Policy   Trust-0.141146 %75 %
186Number of Prices   Size-0.14373813060 %75 %
187Uses Schema breadcrumblist   Other-0.141131 %65 %
188Has Copyright   Trust-0.141153 %64 %
189Number of Meta Generator Tags   Technology-0.142126 %73 %
190Uses JSON-LD SearchAction   Other-0.141117 %70 %
191Entities in H4 Tags-0.139215 %94 %
192Uses JSON-LD caption   Other-0.131116 %70 %
193Uses JSON-LD ReadAction   Other-0.131113 %70 %
194Uses Schema searchaction   Other-0.131117 %67 %
195Uses Schema contenturl   Other-0.131117 %69 %
196Uses Schema readaction   Other-0.131113 %68 %
197Uses JSON-LD EntryPoint   Other-0.131114 %73 %
198Uses Schema caption   Other-0.131116 %68 %
199Has Google Verify   Technology-0.131115 %67 %
200Uses JSON-LD urlTemplate   Other-0.131114 %72 %