Measures 149724 SEO Factors

148002 Built-In SEO Factors

138825 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-0.23115 %67 %
2Search Result Domain is .com   Other-0.22115 %66 %
3Number of Top 50 Shared Factors Used   Diversity-0.21161294 %92 %
4Number of Unique LSI Words Used   Diversity-0.21127332281 %78 %
5Load Time Milliseconds   Performance-0.210602147882 %88 %
6Variations in Search Result Document File Name   Relevancy-0.235243 %83 %
7Number of Top 100 Shared Factors Used   Diversity-0.2392994 %92 %
8Number of Top 200 Shared Factors Used   Diversity-0.2523894 %93 %
9Number of Unique Variations Used   Diversity-0.249778 %89 %
10Entities in Title Tag   Relevancy-0.197360 %95 %
11Variations in Search Result URL Path   Relevancy-0.1953246 %82 %
12Number of Factors Used   Diversity-0.1858218095 %86 %
13Variations in Search Result Link Text   Relevancy-0.183279 %82 %
14Variations in P Tags   Relevancy-0.185662965 %86 %
15Variations in Search Result Display URL   Relevancy-0.1853279 %83 %
16Variations in Search Result URL   Relevancy-0.18151255 %79 %
17Variations in H1, H2, and H3 Tags   Relevancy-0.1837662 %88 %
18Number of Backlinks   Authority-0.18203862748447 %30 %
19Variations in H1-H6 Tags   Relevancy-0.1837763 %87 %
20Variations in H1 and H2 Tags   Relevancy-0.1812459 %88 %
21Number of Referring Domains   Authority-0.182865833247 %30 %
22Variations in Div Tags   Relevancy-0.17222210472 %90 %
23Number of Do Follow Backlinks   Authority-0.17339517887442 %29 %
24Variations in Body Tags   Relevancy-0.17436420576 %90 %
25Variations in HTML Tags   Relevancy-0.17436420576 %91 %
26Variations in First 100 Words   Relevancy-0.1714331667 %82 %
27Variations in Sentences   Relevancy-0.174313471 %88 %
28Variations in H1 Tags   Relevancy-0.173152 %84 %
29Variation Count in Top 30KB   Relevancy-0.174917434265 %87 %
30Number of Distinct Entities Used   Diversity-0.17612569 %93 %
31Entities in H1 Tags-0.176249 %91 %
32Variations in the Title Tag   Relevancy-0.173265 %84 %
33Variations in the Canonical URL   Relevancy-0.17499450 %85 %
34Term Frequency   Relevancy-0.174377 %89 %
35Leading Variations in H1-H6 Tags   Relevancy-0.169243 %85 %
36Variations in Absolute URLs   Relevancy-0.1613489091862 %86 %
37Clean Keyword Density in the HTML Tag   Relevancy-0.1610369 %78 %
38Variations in Meta Description   Relevancy-0.163254 %85 %
39Leading Variations in H1, H2, and H3 Tags   Relevancy-0.168240 %86 %
40Variations in A Tags   Relevancy-0.162601963 %84 %
41Leading Variations in H1 Tags   Relevancy-0.162125 %81 %
42Variations in H2 Tags   Relevancy-0.1611346 %86 %
43Variations in LI Tags   Relevancy-0.168622063 %88 %
44Number of No Follow Backlinks   Authority-0.162619981836 %29 %
45Search Result Number of Dirs in Path   Other-0.163271 %77 %
46LSI Words in Title Tag   Relevancy-0.1614663 %93 %
47Clean Text Kilobytes   Size-0.16671272 %83 %
48Variations in Distinct A Tag HREF Attributes   Relevancy-0.161262360 %87 %
49Variations in A Tag HREF Attributes   Relevancy-0.161803560 %88 %
50Entities in Sentences   Relevancy-0.1655511760 %91 %
51Entities in the HTML Tag   Relevancy-0.1655712064 %91 %
52Variations in ALT Attributes   Relevancy-0.1683644 %83 %
53Unabridged Word Count   Size-0.1612283180182 %86 %
54Leading Variations in Title Tag   Relevancy-0.161129 %83 %
55Word Count   Size-0.164962137582 %86 %
56Variation Density in Top 30KB   Relevancy-0.1526242161 %82 %
57Number of Facebook Pages   Authority-0.158254 %82 %
58TF/IDF   Relevancy-0.151160 %84 %
59Number of Images with ALT Text   Size-0.153622367 %85 %
60Variations in Script Tags   Relevancy-0.157875963 %86 %
61Number of Images   Size-0.153683173 %85 %
62Entities in H2 Tags-0.1534647 %92 %
63Variations in OpenGraph Description   Relevancy-0.153249 %83 %
64Number of H1 Tags   Size-0.154267 %85 %
65LSI Words in Sentences   Relevancy-0.15706570060 %91 %
66Entities in Meta Description Tag   Relevancy-0.158351 %90 %
67Percentage of DoFollow Links   Authority-0.15998277 %87 %
68Number of P Tags   Size-0.151353871 %86 %
69Number Of JSON-LD Types   Relevancy-0.151551453 %82 %
70Variations in OpenGraph Title   Relevancy-0.153154 %83 %
71Percentage of DoFollow Internal Links   Authority-0.15937277 %81 %
72Flesch Kincaid Reading Grade Level   Other-0.156291 %86 %
73Exact Matches in the HTML Tag   Relevancy-0.153651027 %86 %
74Number of HTML Tags   Size-0.15241692483 %86 %
75Number of HTML Comments   Size-0.153984568 %84 %
76Number of Heading Tags   Size-0.15572172 %83 %
77Variations in Span Tags   Relevancy-0.1579848 %83 %
78Number of Includes   Technology-0.15502679 %81 %
79Number of HTTPS Links   Authority-0.1540012777 %82 %
80LSI Words in H1 Tags   Relevancy-0.1421552 %91 %
81Has Meta Charset   Technology-0.141171 %81 %
82Number of DoFollow Links   Authority-0.1439412577 %83 %
83Number of Internal Links   Authority-0.1438411576 %82 %
84Number of H2 Tags   Size-0.1431765 %82 %
85Has JSON-LD Schema Markup   Relevancy-0.141151 %79 %
86Search Result Not .com .net or .org   Other-0.141189 %20 %
87Variations in Section Tags   Relevancy-0.14551637 %82 %
88Entities in H3 Tags-0.1431639 %93 %
89Number of CSS Includes   Technology-0.14191071 %76 %
90Variations in H3 Tags   Relevancy-0.1435335 %85 %
91Average Words Per Sentence   Size-0.141552975 %82 %
92Number of Links   Authority-0.1439612577 %83 %
93Search Result Domain Length   Size-0.14241782 %76 %
94Number of DoFollow External Links   Authority-0.14441271 %81 %
95Variations in Main Tags   Relevancy-0.145105437 %84 %
96Number of Images without ALT Text   Size-0.141481054 %83 %
97Number of External Links   Authority-0.14451472 %81 %
98Search Result Host Length   Size-0.14241782 %76 %
99Search Result URL Length   Size-0.14896095 %64 %
100Inline CSS Kilobytes   Size-0.142456265 %83 %
101Percentage of DoFollow External Links   Authority-0.14271170 %77 %
102Search Result Uses HTTPS   Other-0.141181 %77 %
103Leading Variations in H2 Tags   Relevancy-0.144121 %79 %
104Number of LinkedIn Pages   Authority-0.146130 %78 %
105LSI Words in Meta Description Tag   Relevancy-0.14221052 %90 %
106Variations in Nav Tags   Relevancy-0.133132145 %87 %
107Variations in Footer Tags   Relevancy-0.13549937 %80 %
108Number of Sentences   Size-0.1345812380 %85 %
109Number of H3 Tags   Size-0.1340857 %84 %
110Has Canonical URL   Authority-0.131169 %77 %
111Number of Email Addresses   Trust-0.1398440 %79 %
112Variations in the last 100 words   Relevancy-0.1314481450 %78 %
113Has Entities in H1 Tags   Relevancy-0.131149 %87 %
114Number of Social Pages   Authority-0.1323459 %78 %
115Number of Questions In Headings   Size-0.137235 %81 %
116Has Meta Viewport   Technology-0.131180 %78 %
117Uses JSON-LD name   Other-0.131151 %76 %
118Variations making whole H1-H6 Tags   Relevancy-0.132114 %76 %
119Has FavIcon   Technology-0.131174 %74 %
120Variations in Strong Tags   Relevancy-0.1321226 %79 %
121Number of Instagram Pages   Authority-0.1319242 %74 %
122Number of Absolute URLs   Authority-0.1381827181 %83 %
123LSI Words in H2 Tags   Relevancy-0.13982151 %90 %
124Exact Matches in H1-H6 Tags   Relevancy-0.137116 %84 %
125Number of JavaScript Includes   Technology-0.13431779 %80 %
126Variations making whole A Tags   Relevancy-0.136126 %79 %
127Has Meta Description   Relevancy-0.131165 %78 %
128Number of US Phone Numbers   Trust-0.138331642 %81 %
129Meta Description Length   Size-0.1333911765 %79 %
130Uses Schema aggregaterating   Other-0.131111 %57 %
131Number of Social Accounts   Authority-0.1313240 %79 %
132Number of Facebook Accounts   Authority-0.134127 %76 %
133Has Contact Page   Trust-0.131158 %73 %
134Title Word Count   Size-0.1312881 %80 %
135Has Email   Trust-0.131140 %69 %
136Has OpenGraph Type   Relevancy-0.131160 %72 %
137Word Count in Meta Description   Size-0.13551965 %81 %
138Variations in Meta Twitter Description   Relevancy-0.132123 %71 %
139Title Tag Has Entities   Relevancy-0.131160 %88 %
140Number of Forms   Technology-0.1310246 %78 %
141Uses JSON-LD url   Other-0.131144 %72 %
142Variations making whole H1, H2, and H3 Tags   Relevancy-0.132112 %77 %
143Title Length   Size-0.13885181 %81 %
144Exact Matches in Sentences   Relevancy-0.1338218 %83 %
145Variations in TITLE Attributes   Relevancy-0.1258538 %78 %
146Uses Schema name   Other-0.121158 %70 %
147Has Schema Markup   Relevancy-0.121162 %72 %
148Has Form   Technology-0.121146 %75 %
149Variations Making Whole Span Tags   Relevancy-0.1215117 %75 %
150Is Home Page   Other-0.121119 %45 %
151Uses Schema operatingsystem   Other-0.12114 %14 %
152Has US Phone Number   Trust-0.121142 %72 %
153Uses Schema product   Other-0.12117 %48 %
154Uses Schema applicationcategory   Other-0.12114 %15 %
155Is OpenGraph Type Article   Technology-0.121133 %66 %
156Is Article Page   Other-0.121143 %72 %
157Uses JSON-LD BreadcrumbList   Other-0.121133 %71 %
158Number of Questions   Size-0.12681165 %80 %
159Headings Has Question   Other-0.121135 %73 %
160Uses JSON-LD AggregateRating   Other-0.12119 %60 %
161Page Size Kilobytes   Size-0.1297430381 %75 %
162Uses Schema image   Other-0.121121 %68 %
163Uses JSON-LD description   Other-0.121141 %72 %
164Search Result Summary Length   Size-0.1219415494 %74 %
165Uses JSON-LD image   Other-0.121117 %69 %
166Number Of Claimed Brands   Other-0.1224223 %76 %
167Exact Matches in Top 30KB   Relevancy-0.1221215 %82 %
168Number of Questions In H2 Tags   Size-0.124123 %78 %
169Leading Variations in H3 Tags   Relevancy-0.126115 %77 %
170Number of Prices   Size-0.126207366 %80 %
171Exact Matches in Title Tag   Relevancy-0.122114 %81 %
172Uses JSON-LD ListItem   Other-0.121133 %71 %
173Uses JSON-LD operatingSystem   Other-0.12114 %14 %
174Uses JSON-LD applicationCategory   Other-0.12114 %14 %
175Variations in Meta Twitter Content   Relevancy-0.122125 %70 %
176Uses JSON-LD Product   Other-0.12116 %50 %
177Variations in I Tags   Relevancy-0.1214323 %76 %
178Inline JavaScript Kilobytes   Size-0.1251111678 %72 %
179Number of HREF Lang Tags   Size-0.1232210 %72 %
180Number of H4 Tags   Size-0.1222334 %78 %
181Has Privacy Policy   Trust-0.121153 %79 %
182Has Meta Twitter Card   Authority-0.121152 %65 %
183Uses Schema ratingvalue   Other-0.121111 %55 %
184Variations Making Whole LI Tags   Relevancy-0.128122 %77 %
185Has OpenGraph Image   Relevancy-0.121151 %72 %
186Uses JSON-LD currency   Other-0.12112 %11 %
187Percentage of NoFollow Internal Links   Authority-0.1212111 %70 %
188Variations in Button Tags   Relevancy-0.124528 %75 %
189Uses Schema url   Other-0.121154 %68 %
190Number of Twitter Accounts   Authority-0.123122 %74 %
191Uses Schema pricecurrency   Other-0.12115 %49 %
192Uses JSON-LD item   Other-0.121123 %67 %
193Uses Schema organization   Other-0.121133 %69 %
194Variations making whole H1 Tags   Relevancy-0.11117 %82 %
195Uses Microdata price   Other-0.11112 %16 %
196Uses Schema website   Other-0.111135 %64 %
197Has HREF Lang   Technology-0.111111 %64 %
198Variations in Class Attributes   Relevancy-0.111314716 %79 %
199LSI Words in H3 Tags   Relevancy-0.111341944 %90 %
200Has Entities in H2 Tags   Relevancy-0.111147 %86 %