Measures 149350 SEO Factors

147628 Built-In SEO Factors

138453 On-page SEO Factors

9175 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-0.22117 %55 %
2Search Result Domain is .com   Other-0.22117 %54 %
3Entities in Title Tag   Relevancy-0.217373 %94 %
4Number of Unique Variations Used   Diversity-0.224784 %82 %
5Load Time Milliseconds   Performance-0.26185165486 %85 %
6Variations in Search Result Document File Name   Relevancy-0.23147 %74 %
7Number of Do Follow Backlinks   Authority-0.256794304543 %71 %
8Number of Backlinks   Authority-0.257894334548 %71 %
9Number of Referring Domains   Authority-0.2126112248 %72 %
10Number of Top 50 Shared Factors Used   Diversity-0.19161397 %89 %
11Number of Distinct Entities Used   Diversity-0.18533082 %91 %
12Entities in H1 Tags-0.186260 %86 %
13Number of Unique LSI Words Used   Diversity-0.1897835186 %81 %
14Variations in Search Result URL Path   Relevancy-0.183151 %77 %
15Number of Top 200 Shared Factors Used   Diversity-0.18514097 %89 %
16Number of Top 100 Shared Factors Used   Diversity-0.18393197 %88 %
17Variations in Search Result URL   Relevancy-0.183259 %70 %
18Entities in the HTML Tag   Relevancy-0.1740614479 %88 %
19Entities in Sentences   Relevancy-0.1740314175 %90 %
20Number of Factors Used   Diversity-0.1725818698 %80 %
21Number of No Follow Backlinks   Authority-0.17490926735 %70 %
22Entities in Meta Description Tag   Relevancy-0.178361 %80 %
23Variations in H1 and H2 Tags   Relevancy-0.1710466 %75 %
24Variations in the Canonical URL   Relevancy-0.163257 %79 %
25LSI Words in Title Tag   Relevancy-0.1614775 %91 %
26Entities in H2 Tags-0.1625757 %87 %
27Variations in P Tags   Relevancy-0.16893171 %78 %
28Variations in H1, H2, and H3 Tags   Relevancy-0.1616769 %82 %
29Variations in First 100 Words   Relevancy-0.1614775 %75 %
30Entities in H3 Tags-0.1631747 %95 %
31Variations in H1-H6 Tags   Relevancy-0.1617768 %79 %
32Exact Matches in the HTML Tag   Relevancy-0.1683725 %82 %
33Variations in H1 Tags   Relevancy-0.162159 %78 %
34Variations in H2 Tags   Relevancy-0.169353 %75 %
35Leading Variations in H1-H6 Tags   Relevancy-0.166244 %79 %
36Search Result Number of Dirs in Path   Other-0.153276 %81 %
37Variations in Meta Description   Relevancy-0.153261 %79 %
38Number of Facebook Pages   Authority-0.155259 %76 %
39LSI Words in Sentences   Relevancy-0.15362383072 %90 %
40Leading Variations in H1, H2, and H3 Tags   Relevancy-0.156241 %81 %
41Variation Count in Top 30KB   Relevancy-0.15411970 %82 %
42Variations in LI Tags   Relevancy-0.15602070 %89 %
43LSI Words in H1 Tags   Relevancy-0.1513563 %88 %
44Number of CSS Includes   Technology-0.15191175 %70 %
45Variations in Div Tags   Relevancy-0.1550511578 %90 %
46Number of P Tags   Size-0.151294176 %80 %
47Clean Keyword Density in the HTML Tag   Relevancy-0.155477 %73 %
48Variations in Sentences   Relevancy-0.151974077 %84 %
49Variations in A Tags   Relevancy-0.15872169 %85 %
50Variations in the Title Tag   Relevancy-0.152272 %77 %
51Variations in Body Tags   Relevancy-0.15144523482 %90 %
52Term Frequency   Relevancy-0.154381 %86 %
53Variations in Distinct A Tag HREF Attributes   Relevancy-0.151122966 %88 %
54LSI Words in Meta Description Tag   Relevancy-0.15201161 %80 %
55Variations in Absolute URLs   Relevancy-0.151645970 %85 %
56Variations in Search Result Display URL   Relevancy-0.153286 %84 %
57Variations in Search Result Link Text   Relevancy-0.153286 %84 %
58Variations in HTML Tags   Relevancy-0.15144523281 %91 %
59Number of Includes   Technology-0.15462882 %77 %
60Variations in A Tag HREF Attributes   Relevancy-0.151604366 %88 %
61Percentage of DoFollow Links   Authority-0.15998483 %82 %
62Search Result URL Length   Size-0.15776398 %64 %
63Title Tag Has Entities   Relevancy-0.141174 %85 %
64Variations in OpenGraph Description   Relevancy-0.143256 %70 %
65Unabridged Word Count   Size-0.146243184286 %84 %
66Number of Images with ALT Text   Size-0.14701973 %80 %
67Has Meta Charset   Technology-0.141176 %73 %
68Variations in Script Tags   Relevancy-0.147877867 %84 %
69Is Home Page   Other-0.141122 %33 %
70Number of Images   Size-0.141042978 %82 %
71Leading Variations in Title Tag   Relevancy-0.141129 %84 %
72Variation Density in Top 30KB   Relevancy-0.143267 %74 %
73Clean Text Kilobytes   Size-0.14341277 %82 %
74Variations making whole A Tags   Relevancy-0.143127 %80 %
75Exact Matches in Sentences   Relevancy-0.1416217 %81 %
76Number of DoFollow Links   Authority-0.1430212781 %81 %
77Number of H1 Tags   Size-0.143272 %79 %
78Word Count   Size-0.144094141787 %84 %
79Number of Links   Authority-0.1431413081 %81 %
80Has Entities in H1 Tags   Relevancy-0.141160 %80 %
81Variations in ALT Attributes   Relevancy-0.1483648 %74 %
82Number of HTTPS Links   Authority-0.1431412981 %82 %
83Number of Questions   Size-0.14681371 %78 %
84Leading Variations in H1 Tags   Relevancy-0.141124 %75 %
85TF/IDF   Relevancy-0.141165 %75 %
86Variations making whole H1-H6 Tags   Relevancy-0.141115 %74 %
87Number of Internal Links   Authority-0.1429811781 %81 %
88Number of HTML Comments   Size-0.143984874 %82 %
89Exact Matches in H1-H6 Tags   Relevancy-0.147116 %80 %
90Uses JSON-LD unitCode   Other-0.14112 %11 %
91Uses Schema unitcode   Other-0.14112 %11 %
92Number of HTML Tags   Size-0.13227295987 %87 %
93Has Meta Viewport   Technology-0.131184 %75 %
94Variations in OpenGraph Title   Relevancy-0.132262 %74 %
95Variations in Strong Tags   Relevancy-0.136230 %76 %
96Word Count in Meta Description   Size-0.13251969 %74 %
97Has OpenGraph Type   Relevancy-0.131166 %66 %
98Number of Sentences   Size-0.1345814085 %80 %
99Variations making whole H1, H2, and H3 Tags   Relevancy-0.131113 %75 %
100Has JSON-LD Schema Markup   Relevancy-0.131155 %74 %
101Variations in TITLE Attributes   Relevancy-0.1325542 %75 %
102Percentage of DoFollow Internal Links   Authority-0.13897482 %86 %
103Variations Making Whole Span Tags   Relevancy-0.133119 %67 %
104Number of DoFollow External Links   Authority-0.13301276 %80 %
105Has Meta Description   Relevancy-0.131169 %70 %
106Exact Matches in Title Tag   Relevancy-0.131113 %75 %
107Has Meta Twitter Card   Authority-0.131156 %56 %
108Inline CSS Kilobytes   Size-0.131456769 %80 %
109Leading Variations in H2 Tags   Relevancy-0.133121 %76 %
110Variations in H3 Tags   Relevancy-0.137340 %84 %
111Variations in Section Tags   Relevancy-0.13461838 %71 %
112Number of External Links   Authority-0.13371478 %84 %
113Number of Questions In Headings   Size-0.137239 %80 %
114Number of Heading Tags   Size-0.13572277 %77 %
115Number of LinkedIn Pages   Authority-0.133130 %71 %
116Variations in Nav Tags   Relevancy-0.131212148 %82 %
117Variations making whole H1 Tags   Relevancy-0.13116 %81 %
118Meta Description Length   Size-0.1315911970 %71 %
119Flesch Kincaid Reading Grade Level   Other-0.135295 %82 %
120Number of Images without ALT Text   Size-0.13361059 %78 %
121Variations in Style Tags   Relevancy-0.1398412 %79 %
122LSI Words in H2 Tags   Relevancy-0.13632362 %84 %
123Number of JavaScript Includes   Technology-0.13311883 %78 %
124Number of H3 Tags   Size-0.1317861 %82 %
125Has Form   Technology-0.131151 %73 %
126Average Words Per Sentence   Size-0.13752881 %84 %
127Number of Social Pages   Authority-0.1323566 %73 %
128Number of H2 Tags   Size-0.1310769 %74 %
129Page Size Kilobytes   Size-0.1378231986 %76 %
130Is OpenGraph Type Article   Technology-0.131139 %63 %
131Number Of JSON-LD Types   Relevancy-0.13341357 %81 %
132Number of Questions In H2 Tags   Size-0.134125 %78 %
133Number of Forms   Technology-0.135250 %76 %
134Title Length   Size-0.13805386 %76 %
135Variations Making Whole LI Tags   Relevancy-0.123124 %74 %
136Exact Matches in Top 30KB   Relevancy-0.126114 %79 %
137Number of Facebook Accounts   Authority-0.122129 %74 %
138Search Result Not .com .net or .org   Other-0.121194 %29 %
139Number of Email Addresses   Trust-0.1298544 %73 %
140Variations in Span Tags   Relevancy-0.1229953 %77 %
141Variations in Footer Tags   Relevancy-0.1253841 %79 %
142Variations in Aside Tags   Relevancy-0.1225410 %70 %
143Has Canonical URL   Authority-0.121174 %75 %
144Meta Description Tag Has Entities   Relevancy-0.121162 %74 %
145Search Result Summary Length   Size-0.1215915498 %71 %
146Search Result Uses HTTPS   Other-0.121186 %75 %
147Is Article Page   Other-0.121147 %67 %
148Uses JSON-LD headline   Other-0.121116 %46 %
149Inline JavaScript Kilobytes   Size-0.1242112082 %71 %
150Percentage of DoFollow External Links   Authority-0.12191076 %69 %
151Has Entities in H3 Tags   Relevancy-0.121147 %79 %
152LSI Words in H3 Tags   Relevancy-0.12762554 %89 %
153Number of Instagram Pages   Authority-0.1219246 %72 %
154Entities in H4 Tags-0.128220 %80 %
155Uses JSON-LD Review   Other-0.12116 %42 %
156Variations in the last 100 words   Relevancy-0.1211457 %74 %
157Has Entities in H2 Tags   Relevancy-0.121157 %77 %
158Number of Meta Generator Tags   Technology-0.122142 %56 %
159Has HREF Lang   Technology-0.12119 %72 %
160Exact Matches in H1 Tags   Relevancy-0.121110 %73 %
161Has Privacy Policy   Trust-0.121157 %75 %
162Variations in I Tags   Relevancy-0.1212427 %75 %
163Has US Phone Number   Trust-0.121149 %62 %
164Uses Schema aggregaterating   Other-0.121111 %55 %
165Uses Schema homeandconstructionbusiness   Other-0.12112 %24 %
166Number of Social Accounts   Authority-0.124244 %80 %
167Number of Prices   Size-0.124166671 %77 %
168Percentage of NoFollow Internal Links   Authority-0.123112 %64 %
169Number of Nofollow Links   Authority-0.1213425 %74 %
170Uses Microdata priceRange   Other-0.12112 %12 %
171Number of US Phone Numbers   Trust-0.12351046 %79 %
172Variations in Figure Tags   Relevancy-0.1229514 %71 %
173Uses Schema name   Other-0.121163 %66 %
174Search Result Domain Length   Size-0.12241887 %74 %
175Search Result Host Length   Size-0.12241887 %74 %
176Variations in Main Tags   Relevancy-0.123525838 %84 %
177Uses Schema publishingprinciples   Other-0.12113 %13 %
178Title Word Count   Size-0.1212886 %77 %
179Leading Variations in H3 Tags   Relevancy-0.124116 %76 %
180Variations in Em Tags   Relevancy-0.12217 %76 %
181Uses JSON-LD CollectionPage   Other-0.12113 %29 %
182Uses Schema collectionpage   Other-0.12113 %29 %
183Uses JSON-LD interactionType   Other-0.12112 %13 %
184Uses JSON-LD AggregateRating   Other-0.12119 %60 %
185Variations in ID Attributes   Relevancy-0.127213 %77 %
186Is Store Page   Other-0.121146 %68 %
187Uses JSON-LD publishingPrinciples   Other-0.12113 %15 %
188Uses Microdata FAQPage   Other-0.11112 %23 %
189Uses Microdata playerType   Other-0.11115 %20 %
190Uses Schema playertype   Other-0.11115 %20 %
191Number of Questions In H3 Tags   Size-0.113117 %79 %
192Has FavIcon   Technology-0.111178 %76 %
193Percentage of NoFollow Links   Authority-0.116223 %69 %
194Uses Schema telephone   Other-0.111119 %56 %
195Headings Has Question   Other-0.111139 %72 %
196Uses JSON-LD BreadcrumbList   Other-0.111137 %66 %
197Exact Matches in H2 Tags   Relevancy-0.114110 %81 %
198Uses JSON-LD mainEntity   Other-0.11111 %15 %
199Variations in Class Attributes   Relevancy-0.1135418 %72 %
200Uses JSON-LD temporalCoverage   Other-0.11111 %13 %