Measures 150367 SEO Factors

148645 Built-In SEO Factors

139443 On-page SEO Factors

9202 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 2026-04     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Unique Variations Used   Diversity-0.2432675 %90 %
2Number of Unique LSI Words Used   Diversity-0.2389731079 %87 %
3Number of Top 50 Shared Factors Used   Diversity-0.23161293 %93 %
4Number of Top 200 Shared Factors Used   Diversity-0.23503796 %95 %
5Number of Top 100 Shared Factors Used   Diversity-0.23382895 %95 %
6Load Time Milliseconds   Performance-0.2314022147181 %93 %
7Number of Distinct Entities Used   Diversity-0.21602874 %95 %
8Entities in Title Tag   Relevancy-0.217362 %93 %
9Variations in H1, H2, and H3 Tags   Relevancy-0.2117555 %90 %
10Variations in H1 and H2 Tags   Relevancy-0.2110353 %91 %
11Variations in H1-H6 Tags   Relevancy-0.2128656 %90 %
12Search Result Domain is .com, .net, or .org   Other-0.21116 %79 %
13Variations in Body Tags   Relevancy-0.21111319272 %90 %
14Variations in Search Result Display URL   Relevancy-0.23275 %82 %
15Variations in Search Result Link Text   Relevancy-0.23275 %82 %
16Variations in HTML Tags   Relevancy-0.2111319172 %91 %
17Number of Factors Used   Diversity-0.226616895 %93 %
18Search Result Domain is .com   Other-0.2116 %78 %
19Variations in P Tags   Relevancy-0.22002658 %93 %
20Entities in the HTML Tag   Relevancy-0.245114668 %97 %
21Entities in Sentences   Relevancy-0.244914263 %97 %
22Term Frequency   Relevancy-0.24372 %89 %
23LSI Words in Sentences   Relevancy-0.2303381765 %95 %
24Variations in Sentences   Relevancy-0.21723265 %90 %
25Entities in H2 Tags-0.227747 %94 %
26Variations in Div Tags   Relevancy-0.24739368 %92 %
27LSI Words in Title Tag   Relevancy-0.1914770 %92 %
28Leading Variations in H1-H6 Tags   Relevancy-0.197237 %88 %
29Variations in the Title Tag   Relevancy-0.193159 %87 %
30Variations in H1 Tags   Relevancy-0.193147 %86 %
31Variations in Search Result Document File Name   Relevancy-0.193139 %88 %
32Entities in H1 Tags-0.195249 %91 %
33Variation Count in Top 30KB   Relevancy-0.19811858 %88 %
34Leading Variations in H1, H2, and H3 Tags   Relevancy-0.197135 %90 %
35LSI Words in H1 Tags   Relevancy-0.1914555 %93 %
36Word Count   Size-0.184223143681 %89 %
37Number of Includes   Technology-0.18492575 %79 %
38Unabridged Word Count   Size-0.188545205681 %89 %
39Variations in H2 Tags   Relevancy-0.189339 %90 %
40Variations in Meta Description   Relevancy-0.184249 %84 %
41Variations in LI Tags   Relevancy-0.18761656 %92 %
42Variations in A Tags   Relevancy-0.18911856 %91 %
43Entities in H3 Tags-0.1828739 %94 %
44Number of HTML Tags   Size-0.18271399381 %84 %
45Clean Text Kilobytes   Size-0.18491466 %88 %
46Variations in Search Result URL Path   Relevancy-0.183141 %87 %
47Variations in ALT Attributes   Relevancy-0.1853640 %83 %
48Number of Facebook Pages   Authority-0.186250 %86 %
49Variations in OpenGraph Title   Relevancy-0.182149 %82 %
50TF/IDF   Relevancy-0.171150 %87 %
51Clean Keyword Density in the HTML Tag   Relevancy-0.178363 %85 %
52LSI Words in H2 Tags   Relevancy-0.17962253 %93 %
53Number of CSS Includes   Technology-0.1718968 %82 %
54Variations in Script Tags   Relevancy-0.174776158 %84 %
55Number of P Tags   Size-0.17993765 %88 %
56Variations in the Canonical URL   Relevancy-0.176242 %90 %
57Number of Images with ALT Text   Size-0.17772062 %85 %
58Leading Variations in Title Tag   Relevancy-0.171126 %81 %
59Number of Heading Tags   Size-0.17532067 %87 %
60Variation Density in Top 30KB   Relevancy-0.177254 %85 %
61Entities in Meta Description Tag   Relevancy-0.178354 %89 %
62Variations in OpenGraph Description   Relevancy-0.173144 %84 %
63Has JSON-LD Schema Markup   Relevancy-0.171147 %84 %
64Variations in Span Tags   Relevancy-0.1742844 %89 %
65Has Entities in H1 Tags   Relevancy-0.171149 %88 %
66Number of H2 Tags   Size-0.1716760 %89 %
67Number of Images   Size-0.171032868 %87 %
68Variations in Absolute URLs   Relevancy-0.162344551 %92 %
69Number of HTTPS Links   Authority-0.1660013573 %88 %
70Variations in Search Result URL   Relevancy-0.163249 %84 %
71Number of Links   Authority-0.1660113773 %88 %
72LSI Words in Meta Description Tag   Relevancy-0.16301157 %90 %
73Variations in Main Tags   Relevancy-0.163064934 %88 %
74Number of DoFollow Links   Authority-0.1659213373 %88 %
75Leading Variations in H1 Tags   Relevancy-0.161122 %87 %
76Number of H1 Tags   Size-0.163162 %92 %
77Flesch Kincaid Reading Grade Level   Other-0.166192 %88 %
78Variations in A Tag HREF Attributes   Relevancy-0.161573250 %91 %
79Number of Internal Links   Authority-0.1659512372 %88 %
80Search Result Number of Dirs in Path   Other-0.163273 %79 %
81Variations in Distinct A Tag HREF Attributes   Relevancy-0.161162149 %91 %
82Percentage of DoFollow Internal Links   Authority-0.16946872 %87 %
83Variations in First 100 Words   Relevancy-0.1617558 %89 %
84Has Entities in H2 Tags   Relevancy-0.161148 %91 %
85Number of Questions In Headings   Size-0.1610232 %82 %
86Percentage of DoFollow Links   Authority-0.161007873 %89 %
87Number of Sentences   Size-0.1666013977 %82 %
88Variations in Nav Tags   Relevancy-0.161681939 %87 %
89Has Canonical URL   Authority-0.161165 %79 %
90Number of H3 Tags   Size-0.1628852 %83 %
91Average Words Per Sentence   Size-0.161493171 %83 %
92Variations in Section Tags   Relevancy-0.15621433 %87 %
93Search Result Domain Length   Size-0.15231681 %84 %
94Search Result Host Length   Size-0.15231681 %84 %
95Title Tag Has Entities   Relevancy-0.151162 %88 %
96Variations in H3 Tags   Relevancy-0.1511229 %85 %
97Search Result Uses HTTPS   Other-0.151180 %84 %
98Number of Absolute URLs   Authority-0.1592727179 %78 %
99Title Word Count   Size-0.1518878 %77 %
100Number Of JSON-LD Types   Relevancy-0.152291650 %89 %
101Number of DoFollow External Links   Authority-0.15291269 %84 %
102Title Length   Size-0.151075279 %76 %
103LSI Words in H3 Tags   Relevancy-0.151062245 %88 %
104Leading Variations in H2 Tags   Relevancy-0.154118 %86 %
105Number of External Links   Authority-0.15311469 %86 %
106Number of Referring Domains   Authority-0.15701912143 %75 %
107Number of Forms   Technology-0.159247 %77 %
108Has Meta Charset   Technology-0.151167 %81 %
109Number of HTML Comments   Size-0.154094763 %86 %
110Number of JavaScript Includes   Technology-0.15401776 %74 %
111Number of Facebook Accounts   Authority-0.153124 %78 %
112Number of Backlinks   Authority-0.1519454222417544 %77 %
113Has Privacy Policy   Trust-0.151154 %81 %
114Headings Has Question   Other-0.151131 %81 %
115Has Meta Viewport   Technology-0.151177 %79 %
116Has Meta Twitter Card   Authority-0.151149 %66 %
117Word Count in Meta Description   Size-0.15391962 %77 %
118Exact Matches in the HTML Tag   Relevancy-0.154321125 %86 %
119Uses Schema name   Other-0.151156 %70 %
120Meta Description Length   Size-0.1520711863 %76 %
121Uses JSON-LD name   Other-0.141147 %81 %
122Number of Do Follow Backlinks   Authority-0.1419453741596039 %74 %
123Has Entities in H3 Tags   Relevancy-0.141140 %85 %
124Number of Images without ALT Text   Size-0.1442952 %85 %
125Has OpenGraph Type   Relevancy-0.141157 %71 %
126Number of US Phone Numbers   Trust-0.141161037 %84 %
127Entities in H4 Tags-0.1414217 %91 %
128Has Schema Markup   Relevancy-0.141159 %76 %
129Has Form   Technology-0.141146 %76 %
130Number of No Follow Backlinks   Authority-0.1418513831031233 %68 %
131Page Size Kilobytes   Size-0.14103734979 %68 %
132Has US Phone Number   Trust-0.141137 %75 %
133Number of Questions   Size-0.14651263 %78 %
134Number of H4 Tags   Size-0.1427430 %80 %
135Has Meta Description   Relevancy-0.141162 %77 %
136Meta Description Tag Has Entities   Relevancy-0.141154 %83 %
137Variations in Footer Tags   Relevancy-0.1462631 %87 %
138Has Contact Page   Trust-0.141157 %77 %
139Variations in Strong Tags   Relevancy-0.1410223 %82 %
140Variations Making Whole LI Tags   Relevancy-0.144119 %82 %
141Inline CSS Kilobytes   Size-0.142075662 %85 %
142Has OpenGraph Image   Relevancy-0.141153 %70 %
143Uses Schema url   Other-0.141151 %69 %
144Uses JSON-LD url   Other-0.141140 %80 %
145Number of Questions In H2 Tags   Size-0.144120 %80 %
146Variations making whole H1-H6 Tags   Relevancy-0.142112 %79 %
147Variations making whole A Tags   Relevancy-0.144124 %84 %
148Number of LinkedIn Pages   Authority-0.143127 %82 %
149Number of Instagram Pages   Authority-0.1417240 %77 %
150Number of Social Pages   Authority-0.1320558 %80 %
151Number of Social Accounts   Authority-0.137237 %86 %
152Percentage of DoFollow External Links   Authority-0.13241168 %84 %
153Is OpenGraph Type Article   Technology-0.131129 %66 %
154Uses JSON-LD description   Other-0.131138 %76 %
155Variations Making Whole Span Tags   Relevancy-0.139116 %85 %
156Is Article Page   Other-0.131139 %71 %
157Uses JSON-LD datePublished   Other-0.131129 %67 %
158Variations in Meta Twitter Description   Relevancy-0.132122 %73 %
159Has FavIcon   Technology-0.131170 %70 %
160Number of Email Addresses   Trust-0.1358437 %80 %
161Number of Prices   Size-0.1339110365 %79 %
162Variations in Meta Twitter Content   Relevancy-0.132124 %71 %
163Inline JavaScript Kilobytes   Size-0.1352416475 %69 %
164Uses JSON-LD ListItem   Other-0.131131 %77 %
165Number of Questions In H3 Tags   Size-0.137116 %78 %
166Uses Schema description   Other-0.131145 %69 %
167Variations making whole H1, H2, and H3 Tags   Relevancy-0.132110 %81 %
168Uses Schema datemodified   Other-0.131128 %63 %
169Uses Schema listitem   Other-0.131138 %68 %
170Uses JSON-LD ImageObject   Other-0.131128 %68 %
171Uses Schema website   Other-0.131128 %65 %
172Exact Matches in Sentences   Relevancy-0.1341319 %87 %
173Uses JSON-LD BreadcrumbList   Other-0.131130 %76 %
174Uses JSON-LD dateModified   Other-0.131126 %66 %
175LSI Words in H4 Tags   Relevancy-0.1353726 %84 %
176Uses Schema imageobject   Other-0.131135 %58 %
177Number Of Claimed Brands   Other-0.1315221 %77 %
178Number of Nofollow Links   Authority-0.1318422 %81 %
179Variations in the last 100 words   Relevancy-0.139340 %82 %
180Uses Schema breadcrumblist   Other-0.131138 %68 %
181Variations in TITLE Attributes   Relevancy-0.1337533 %81 %
182Variations in Article Tags   Relevancy-0.13561021 %82 %
183Has Terms of Service   Trust-0.121138 %70 %
184Variations in I Tags   Relevancy-0.1214318 %81 %
185Is Purchase Page   Other-0.121147 %58 %
186Variations in Button Tags   Relevancy-0.121729 %79 %
187Has Meta Robots   Other-0.121123 %75 %
188Has Entities in H4 Tags   Relevancy-0.121118 %79 %
189Uses Schema item   Other-0.121128 %58 %
190Percentage of NoFollow Links   Authority-0.1215220 %76 %
191Uses Schema webpage   Other-0.121130 %66 %
192Number of Twitter Accounts   Authority-0.122120 %78 %
193Leading Variations in H3 Tags   Relevancy-0.123112 %78 %
194Uses JSON-LD WebPage   Other-0.121128 %67 %
195Search Result URL Length   Size-0.12946495 %59 %
196Has Email   Trust-0.121137 %73 %
197Uses JSON-LD WebSite   Other-0.121125 %73 %
198Uses JSON-LD inLanguage   Other-0.121124 %65 %
199Uses Schema inlanguage   Other-0.121124 %62 %
200Number of Meta Generator Tags   Technology-0.122128 %64 %