Measures 149729 SEO Factors

148007 Built-In SEO Factors

138830 On-page SEO Factors

9177 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 2026-02     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Search Result Domain is .com, .net, or .org   Other-0.22115 %66 %
2Search Result Domain is .com   Other-0.21115 %65 %
3Number of Top 50 Shared Factors Used   Diversity-0.2161294 %91 %
4Load Time Milliseconds   Performance-0.210602148082 %87 %
5Number of Unique LSI Words Used   Diversity-0.2127332382 %77 %
6Variations in Search Result Document File Name   Relevancy-0.1935243 %82 %
7Number of Top 200 Shared Factors Used   Diversity-0.19523894 %92 %
8Number of Top 100 Shared Factors Used   Diversity-0.19392994 %92 %
9Number of Unique Variations Used   Diversity-0.1949779 %88 %
10Variations in Search Result URL Path   Relevancy-0.1953246 %81 %
11Entities in Title Tag   Relevancy-0.187361 %95 %
12Number of Backlinks   Authority-0.18203862748447 %27 %
13Number of Factors Used   Diversity-0.1858218095 %87 %
14Number of Referring Domains   Authority-0.182865833247 %27 %
15Variations in Search Result Link Text   Relevancy-0.183280 %83 %
16Variations in Search Result URL   Relevancy-0.18151255 %80 %
17Variations in Search Result Display URL   Relevancy-0.1753280 %83 %
18Variations in P Tags   Relevancy-0.175662966 %86 %
19Variations in H1, H2, and H3 Tags   Relevancy-0.1737663 %87 %
20Number of Do Follow Backlinks   Authority-0.17339517887442 %27 %
21Variations in H1-H6 Tags   Relevancy-0.1737763 %86 %
22Variations in H1 and H2 Tags   Relevancy-0.1712460 %87 %
23Variations in Div Tags   Relevancy-0.17222210672 %89 %
24Variations in Body Tags   Relevancy-0.17436420877 %89 %
25Variations in HTML Tags   Relevancy-0.17436420877 %89 %
26Variations in H1 Tags   Relevancy-0.173153 %84 %
27Variations in First 100 Words   Relevancy-0.1714331668 %82 %
28Number of Distinct Entities Used   Diversity-0.17612469 %93 %
29Variations in Sentences   Relevancy-0.174313472 %88 %
30Variations in the Canonical URL   Relevancy-0.17499451 %85 %
31Variation Count in Top 30KB   Relevancy-0.174917430965 %87 %
32Term Frequency   Relevancy-0.164377 %88 %
33Entities in H1 Tags-0.167250 %91 %
34Variations in the Title Tag   Relevancy-0.163266 %84 %
35Search Result Not .com .net or .org   Other-0.161190 %23 %
36Leading Variations in H1-H6 Tags   Relevancy-0.169243 %85 %
37Number of No Follow Backlinks   Authority-0.162619981836 %26 %
38Variations in Absolute URLs   Relevancy-0.1613489082063 %86 %
39Variations in LI Tags   Relevancy-0.168621964 %87 %
40Variations in A Tags   Relevancy-0.162601964 %84 %
41Leading Variations in H1 Tags   Relevancy-0.162126 %81 %
42Variations in Meta Description   Relevancy-0.163255 %85 %
43Leading Variations in H1, H2, and H3 Tags   Relevancy-0.168241 %86 %
44Clean Keyword Density in the HTML Tag   Relevancy-0.1610470 %78 %
45Variations in H2 Tags   Relevancy-0.1611347 %86 %
46LSI Words in Title Tag   Relevancy-0.1614664 %93 %
47Variations in A Tag HREF Attributes   Relevancy-0.151803660 %87 %
48Search Result Number of Dirs in Path   Other-0.153270 %77 %
49Variations in Distinct A Tag HREF Attributes   Relevancy-0.151262360 %87 %
50Clean Text Kilobytes   Size-0.15671272 %83 %
51Variations in Script Tags   Relevancy-0.157875964 %85 %
52Number of Images with ALT Text   Size-0.153622368 %85 %
53Leading Variations in Title Tag   Relevancy-0.151130 %84 %
54Entities in Sentences   Relevancy-0.1555511361 %90 %
55Entities in the HTML Tag   Relevancy-0.1555711664 %91 %
56Unabridged Word Count   Size-0.1512283176282 %85 %
57TF/IDF   Relevancy-0.151160 %84 %
58Word Count   Size-0.154962134983 %85 %
59Variations in ALT Attributes   Relevancy-0.1583745 %82 %
60Number of Images   Size-0.153683173 %84 %
61Number of Facebook Pages   Authority-0.158255 %82 %
62Variation Density in Top 30KB   Relevancy-0.1526241962 %81 %
63Number of H1 Tags   Size-0.154268 %84 %
64Exact Matches in the HTML Tag   Relevancy-0.15365927 %85 %
65Variations in OpenGraph Description   Relevancy-0.153250 %84 %
66Entities in H2 Tags-0.1534647 %92 %
67Number of P Tags   Size-0.151353871 %85 %
68Percentage of DoFollow Links   Authority-0.15998278 %87 %
69Number Of JSON-LD Types   Relevancy-0.151551454 %82 %
70Percentage of DoFollow Internal Links   Authority-0.15937177 %81 %
71Number of HTTPS Links   Authority-0.1440012477 %82 %
72Variations in OpenGraph Title   Relevancy-0.143155 %84 %
73Entities in Meta Description Tag   Relevancy-0.148351 %89 %
74Flesch Kincaid Reading Grade Level   Other-0.146292 %85 %
75Number of Heading Tags   Size-0.14572173 %83 %
76Number of Internal Links   Authority-0.1438411276 %82 %
77Number of DoFollow Links   Authority-0.1439412277 %83 %
78Number of HTML Tags   Size-0.14241691783 %85 %
79Number of Includes   Technology-0.14502579 %80 %
80Variations in Span Tags   Relevancy-0.1479849 %83 %
81LSI Words in Sentences   Relevancy-0.14706569861 %91 %
82Number of HTML Comments   Size-0.143984669 %84 %
83Has JSON-LD Schema Markup   Relevancy-0.141151 %78 %
84LSI Words in H1 Tags   Relevancy-0.1421553 %90 %
85Has Meta Charset   Technology-0.141171 %80 %
86Variations in Section Tags   Relevancy-0.14601737 %81 %
87Number of H2 Tags   Size-0.1431765 %82 %
88Search Result Domain Length   Size-0.14241782 %74 %
89Number of Links   Authority-0.1439612177 %82 %
90Average Words Per Sentence   Size-0.141552875 %81 %
91Entities in H3 Tags-0.1431639 %93 %
92Number of CSS Includes   Technology-0.1419971 %76 %
93Variations in H3 Tags   Relevancy-0.1435335 %85 %
94Variations in Main Tags   Relevancy-0.145105537 %84 %
95Search Result Host Length   Size-0.14241782 %74 %
96Number of DoFollow External Links   Authority-0.14441272 %81 %
97Search Result Uses HTTPS   Other-0.141181 %75 %
98Number of Images without ALT Text   Size-0.131481055 %82 %
99Number of External Links   Authority-0.13451473 %81 %
100Inline CSS Kilobytes   Size-0.132456665 %82 %
101Number of Email Addresses   Trust-0.1398541 %77 %
102Search Result URL Length   Size-0.13896095 %63 %
103Variations in Nav Tags   Relevancy-0.133132146 %86 %
104Variations in Footer Tags   Relevancy-0.13549939 %80 %
105Number of Sentences   Size-0.1345812280 %85 %
106Number of LinkedIn Pages   Authority-0.136128 %78 %
107Leading Variations in H2 Tags   Relevancy-0.134122 %79 %
108Has FavIcon   Technology-0.131174 %74 %
109Number of H3 Tags   Size-0.1340857 %84 %
110Percentage of DoFollow External Links   Authority-0.13271271 %77 %
111Number of Absolute URLs   Authority-0.1381827181 %82 %
112Variations in the last 100 words   Relevancy-0.1314481352 %78 %
113Has Canonical URL   Authority-0.131170 %77 %
114LSI Words in Meta Description Tag   Relevancy-0.13221152 %90 %
115Uses JSON-LD name   Other-0.131151 %75 %
116Number of Questions In Headings   Size-0.137235 %82 %
117Number of Instagram Pages   Authority-0.1319244 %75 %
118Has Meta Viewport   Technology-0.131180 %77 %
119Variations making whole H1-H6 Tags   Relevancy-0.132115 %77 %
120Number of JavaScript Includes   Technology-0.13431779 %80 %
121Number of Social Pages   Authority-0.1323560 %79 %
122Exact Matches in H1-H6 Tags   Relevancy-0.137116 %84 %
123Has Entities in H1 Tags   Relevancy-0.131149 %86 %
124Exact Matches in Sentences   Relevancy-0.1338218 %82 %
125Variations making whole A Tags   Relevancy-0.136126 %78 %
126LSI Words in H2 Tags   Relevancy-0.13982252 %90 %
127Variations in Strong Tags   Relevancy-0.1321226 %80 %
128Has Meta Description   Relevancy-0.131165 %76 %
129Has Email   Trust-0.131141 %67 %
130Number of US Phone Numbers   Trust-0.138331544 %79 %
131Number of Facebook Accounts   Authority-0.134128 %75 %
132Meta Description Length   Size-0.1333911865 %79 %
133Number of Social Accounts   Authority-0.1313240 %79 %
134Uses Schema name   Other-0.121159 %70 %
135Variations in TITLE Attributes   Relevancy-0.1258537 %77 %
136Uses Schema aggregaterating   Other-0.121110 %56 %
137Uses JSON-LD url   Other-0.121145 %72 %
138Has OpenGraph Type   Relevancy-0.121160 %72 %
139Variations making whole H1, H2, and H3 Tags   Relevancy-0.122113 %79 %
140Has Schema Markup   Relevancy-0.121162 %72 %
141Is Home Page   Other-0.121121 %46 %
142Title Word Count   Size-0.1212881 %78 %
143Uses Schema applicationcategory   Other-0.12113 %15 %
144Has Contact Page   Trust-0.121158 %74 %
145Word Count in Meta Description   Size-0.12551965 %80 %
146Variations in Meta Twitter Description   Relevancy-0.122125 %72 %
147Number of Forms   Technology-0.1210246 %78 %
148Uses JSON-LD BreadcrumbList   Other-0.121132 %70 %
149Page Size Kilobytes   Size-0.1297430882 %75 %
150Exact Matches in Title Tag   Relevancy-0.122114 %81 %
151Title Length   Size-0.12885181 %80 %
152Is OpenGraph Type Article   Technology-0.121132 %65 %
153Is Article Page   Other-0.121143 %71 %
154Has Form   Technology-0.121146 %74 %
155Uses Schema operatingsystem   Other-0.12113 %13 %
156Number of Questions   Size-0.12681165 %80 %
157Title Tag Has Entities   Relevancy-0.121160 %88 %
158Variations Making Whole Span Tags   Relevancy-0.1215118 %76 %
159Uses JSON-LD image   Other-0.121117 %69 %
160Uses JSON-LD applicationCategory   Other-0.12113 %14 %
161Has US Phone Number   Trust-0.121144 %71 %
162Uses Schema product   Other-0.12117 %48 %
163Uses Schema image   Other-0.121121 %67 %
164Exact Matches in Top 30KB   Relevancy-0.1221215 %82 %
165Headings Has Question   Other-0.121135 %73 %
166Number of Prices   Size-0.126207466 %80 %
167Uses JSON-LD ListItem   Other-0.121132 %70 %
168Search Result Summary Length   Size-0.1219415494 %75 %
169Number of HREF Lang Tags   Size-0.123229 %72 %
170Uses JSON-LD AggregateRating   Other-0.12119 %59 %
171Uses JSON-LD description   Other-0.121140 %72 %
172Has Meta Twitter Card   Authority-0.121152 %65 %
173Uses JSON-LD operatingSystem   Other-0.12113 %14 %
174Number of Questions In H2 Tags   Size-0.124122 %78 %
175Inline JavaScript Kilobytes   Size-0.1251111878 %72 %
176Number Of Claimed Brands   Other-0.1224223 %76 %
177Variations in Meta Twitter Content   Relevancy-0.122127 %71 %
178Has OpenGraph Image   Relevancy-0.121152 %72 %
179Uses Schema url   Other-0.121154 %68 %
180Leading Variations in H3 Tags   Relevancy-0.126116 %77 %
181Variations Making Whole LI Tags   Relevancy-0.128122 %78 %
182Variations making whole H1 Tags   Relevancy-0.12117 %82 %
183Number of Twitter Accounts   Authority-0.123122 %74 %
184Uses JSON-LD item   Other-0.121122 %66 %
185Percentage of NoFollow Internal Links   Authority-0.1212111 %69 %
186Has Privacy Policy   Trust-0.121152 %79 %
187Uses Schema ratingvalue   Other-0.111110 %56 %
188Uses JSON-LD Product   Other-0.11116 %49 %
189Number of H4 Tags   Size-0.1122334 %77 %
190Has HREF Lang   Technology-0.111110 %64 %
191Variations in Button Tags   Relevancy-0.114529 %76 %
192Number of Questions In H3 Tags   Size-0.114115 %80 %
193Variations in Class Attributes   Relevancy-0.111314617 %79 %
194Exact Matches in H1 Tags   Relevancy-0.111111 %83 %
195Variations in I Tags   Relevancy-0.1114323 %76 %
196Uses Schema website   Other-0.111136 %65 %
197Has Apple Touch Icon   Technology-0.111149 %69 %
198Uses Schema listitem   Other-0.111139 %64 %
199Uses Schema description   Other-0.111147 %65 %
200Uses Schema organization   Other-0.111133 %69 %