Measures 146795 SEO Factors

145073 Built-In SEO Factors

135925 On-page SEO Factors

9148 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 2025-12     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of No Follow Backlinks   Authority-0.245871140740 %70 %
2LSI Words in H1 Tags   Relevancy-0.238683 %90 %
3Number of Do Follow Backlinks   Authority-0.22465161302444 %80 %
4Entities in H1 Tags-0.225381 %90 %
5Number of Backlinks   Authority-0.21521571427649 %80 %
6Number of Referring Domains   Authority-0.257214649 %80 %
7Uses JSON-LD RoofingContractor   Other-0.191110 %20 %
8Uses Schema roofingcontractor   Other-0.191110 %20 %
9Variations in Search Result URL   Relevancy-0.193281 %50 %
10Uses Microdata mainEntityOfPage   Other-0.19111 %30 %
11Variations in Absolute URLs   Relevancy-0.181549084 %50 %
12Variations in the Canonical URL   Relevancy-0.183274 %50 %
13Number of Top 100 Shared Factors Used   Diversity-0.18383597 %60 %
14Has JSON-LD Schema Markup   Relevancy-0.181171 %40 %
15LSI Words in Title Tag   Relevancy-0.1811891 %80 %
16Exact Matches in the HTML Tag   Relevancy-0.1816648 %50 %
17Uses Microdata logo   Other-0.18111 %40 %
18LSI Words in Meta Description Tag   Relevancy-0.18181581 %80 %
19Uses Microdata Collection   Other-0.18111 %20 %
20Uses Schema collection   Other-0.18111 %20 %
21Uses Schema description   Other-0.181165 %30 %
22Is Home Page   Other-0.171122 %50 %
23Uses Microdata dateModified   Other-0.17113 %30 %
24Variations in Search Result URL Path   Relevancy-0.173275 %50 %
25Variations in Footer Tags   Relevancy-0.1713861 %30 %
26Variations in ALT Attributes   Relevancy-0.1713659 %70 %
27Search Result Domain is .com, .net, or .org   Other-0.16115 %70 %
28Uses JSON-LD name   Other-0.161168 %50 %
29Variations in TITLE Attributes   Relevancy-0.169547 %70 %
30Number of Distinct Entities Used   Diversity-0.16604091 %100 %
31Meta Description Length   Size-0.1615214386 %50 %
32Entities in Meta Description Tag   Relevancy-0.168581 %100 %
33Leading Variations in H1-H6 Tags   Relevancy-0.162256 %50 %
34Load Time Milliseconds   Performance-0.162951142492 %90 %
35Uses JSON-LD Country   Other-0.16112 %40 %
36Exact Matches in Sentences   Relevancy-0.166234 %50 %
37Number of Top 200 Shared Factors Used   Diversity-0.15514697 %70 %
38Uses JSON-LD BusinessEvent   Other-0.15112 %20 %
39Uses JSON-LD representativeOfPage   Other-0.15112 %20 %
40Uses Schema businessevent   Other-0.15112 %20 %
41Uses Schema representativeofpage   Other-0.15112 %20 %
42Uses Schema value   Other-0.15112 %20 %
43Uses JSON-LD areaServed   Other-0.15114 %70 %
44Entities in Title Tag   Relevancy-0.157588 %100 %
45Entities in the HTML Tag   Relevancy-0.1546628391 %90 %
46Uses Schema areaserved   Other-0.15114 %70 %
47Variations in Body Tags   Relevancy-0.1534324593 %70 %
48Variations in HTML Tags   Relevancy-0.1534324593 %70 %
49Has Meta Description   Relevancy-0.151182 %40 %
50Variations in A Tag HREF Attributes   Relevancy-0.151205278 %70 %
51Variations making whole A Tags   Relevancy-0.153239 %70 %
52Number of Facebook Share Links   Authority-0.15214 %70 %
53Number of Social Share Links   Authority-0.15214 %70 %
54LSI Words in Sentences   Relevancy-0.142328132390 %90 %
55Number of Unique Variations Used   Diversity-0.14131091 %50 %
56Number of DoFollow External Links   Authority-0.14231485 %80 %
57Entities in Sentences   Relevancy-0.1446127888 %90 %
58Uses JSON-LD url   Other-0.141165 %50 %
59Uses Microdata url   Other-0.14118 %20 %
60Uses JSON-LD ReadAction   Other-0.141131 %40 %
61Uses Schema readaction   Other-0.141131 %40 %
62Variations in OpenGraph Site Name   Relevancy-0.141122 %50 %
63Variations in H1, H2, and H3 Tags   Relevancy-0.1412780 %60 %
64Clean Keyword Density in the HTML Tag   Relevancy-0.145488 %40 %
65Variations in Meta Description   Relevancy-0.143273 %50 %
66Number of Top 50 Shared Factors Used   Diversity-0.14161495 %70 %
67Meta Description Tag Has Entities   Relevancy-0.141180 %50 %
68Uses JSON-LD Language-0.14111 %20 %
69Uses Schema about   Other-0.14111 %30 %
70Uses Schema language   Other-0.14111 %20 %
71Variations in H1 Tags   Relevancy-0.142267 %60 %
72Uses Microdata publisher   Other-0.14113 %40 %
73Variations in Distinct A Tag HREF Attributes   Relevancy-0.14663682 %80 %
74Term Frequency   Relevancy-0.144490 %80 %
75Uses JSON-LD encoding   Other-0.14111 %30 %
76Uses Schema encoding   Other-0.14111 %30 %
77Has Entities in H2 Tags   Relevancy-0.141174 %70 %
78Number of Heading Tags   Size-0.14342490 %80 %
79Has Canonical URL   Authority-0.141186 %50 %
80Uses JSON-LD specialty   Other-0.14112 %20 %
81Uses Schema specialty   Other-0.14112 %20 %
82Number of HTML Tags   Size-0.141570117094 %60 %
83Uses JSON-LD CreativeWork   Other-0.14111 %20 %
84Uses Microdata MedicalBusiness   Other-0.14111 %20 %
85Entities in H2 Tags-0.13301477 %100 %
86Entities in H3 Tags-0.1319963 %90 %
87TF/IDF   Relevancy-0.131175 %70 %
88Uses JSON-LD EntryPoint   Other-0.131136 %40 %
89Uses JSON-LD urlTemplate   Other-0.131136 %40 %
90Uses Schema entrypoint   Other-0.131136 %40 %
91Uses Schema urltemplate   Other-0.131136 %40 %
92Uses JSON-LD Audience-0.13112 %50 %
93Uses Schema audience   Other-0.13112 %50 %
94Variations in Main Tags   Relevancy-0.13895046 %90 %
95Leading Variations in H1, H2, and H3 Tags   Relevancy-0.132257 %60 %
96Variations in H1-H6 Tags   Relevancy-0.1313881 %60 %
97Has Schema Markup   Relevancy-0.131177 %50 %
98Percentage of DoFollow Links   Authority-0.13999391 %70 %
99Variations in Div Tags   Relevancy-0.1321413188 %70 %
100Uses JSON-LD thumbnailUrl   Other-0.131118 %40 %
101Uses Microdata addressRegion   Other-0.13111 %30 %
102Uses Microdata WebSite   Other-0.13112 %20 %
103Number of Unique LSI Words Used   Diversity-0.1395747091 %100 %
104Uses Schema url   Other-0.131169 %50 %
105Variation Count in Top 30KB   Relevancy-0.13251882 %80 %
106Uses JSON-LD value   Other-0.13112 %30 %
107Uses Schema country   Other-0.13112 %40 %
108Variations in Search Result Display URL   Relevancy-0.133289 %60 %
109Variations in Search Result Link Text   Relevancy-0.133289 %60 %
110Variations in Host Citations   Relevancy-0.13726 %80 %
111Variations in Span Tags   Relevancy-0.13181170 %60 %
112Uses Microdata height   Other-0.13111 %20 %
113Uses Microdata width   Other-0.13111 %20 %
114Variation Density in Top 30KB   Relevancy-0.134275 %70 %
115Variations in Search Result Document File Name   Relevancy-0.133266 %50 %
116Variations in First 100 Words   Relevancy-0.1310886 %60 %
117Variations in LI Tags   Relevancy-0.13593384 %80 %
118Uses JSON-LD about   Other-0.13111 %20 %
119Uses JSON-LD PropertyValueSpecification   Other-0.131127 %30 %
120Uses JSON-LD valueName   Other-0.131127 %30 %
121Uses Schema propertyvaluespecification   Other-0.131127 %30 %
122Uses Schema valuename   Other-0.131127 %30 %
123Number of Facebook Accounts   Authority-0.122133 %80 %
124Has US Phone Number   Trust-0.121164 %50 %
125Word Count in Meta Description   Size-0.12262383 %50 %
126Uses JSON-LD CollectionPage   Other-0.12112 %40 %
127Uses Schema collectionpage   Other-0.12112 %40 %
128Number of Nofollow Links   Authority-0.129429 %80 %
129Variations in Strong Tags   Relevancy-0.124232 %50 %
130Is Search Result Page   Other-0.12116 %60 %
131Has Contact Page   Trust-0.121173 %40 %
132Word Count   Size-0.122719192994 %80 %
133LSI Words in H6 Tags   Relevancy-0.12329 %40 %
134Has Entities in H1 Tags   Relevancy-0.121178 %60 %
135Uses Schema name   Other-0.121172 %50 %
136Uses Schema publisher   Other-0.12113 %50 %
137Uses Schema logo   Other-0.121113 %60 %
138Search Result Domain is .com   Other-0.12114 %70 %
139Uses JSON-LD CollegeOrUniversity   Other-0.12111 %40 %
140Uses JSON-LD currenciesAccepted   Other-0.12111 %40 %
141Uses JSON-LD duns   Other-0.12112 %20 %
142Uses Microdata breadcrumb-0.12112 %20 %
143Uses Schema collegeoruniversity   Other-0.12111 %40 %
144Uses Schema currenciesaccepted   Other-0.12111 %40 %
145Uses Schema duns   Other-0.12112 %20 %
146Leading Variations in H1 Tags   Relevancy-0.121133 %70 %
147Has Apple Touch Icon   Technology-0.121162 %40 %
148Number of External Links   Authority-0.12301786 %80 %
149Has Entities in H4 Tags   Relevancy-0.121131 %40 %
150Is Article Page   Other-0.121174 %40 %
151Uses Schema organization   Other-0.121147 %50 %
152Uses Schema transcript   Other-0.12111 %30 %
153Percentage of NoFollow Links   Authority-0.123226 %70 %
154Uses Schema telephone   Other-0.121134 %70 %
155Variations in H1 and H2 Tags   Relevancy-0.128578 %70 %
156Number Of JSON-LD Types   Relevancy-0.12352374 %70 %
157Uses JSON-LD foundingDate   Other-0.12113 %60 %
158Uses Schema foundingdate   Other-0.12113 %60 %
159Uses JSON-LD ItemList   Other-0.12114 %40 %
160Variations in A Tags   Relevancy-0.12432784 %90 %
161Uses JSON-LD GeoShape-0.12111 %40 %
162Uses JSON-LD legalName   Other-0.12114 %40 %
163Uses Schema geoshape   Other-0.12111 %40 %
164Uses Schema legalname   Other-0.12114 %40 %
165Variations in Blockquote Tags   Relevancy-0.12215 %70 %
166Variations in H3 Tags   Relevancy-0.124346 %70 %
167Has XMLRPC   Technology-0.121142 %30 %
168Variations in Section Tags   Relevancy-0.12402451 %60 %
169Variations in Value Attributes   Relevancy-0.121114 %30 %
170Unabridged Word Count   Size-0.123297225493 %90 %
171Number of H1 Tags   Size-0.122281 %60 %
172Uses Microdata LocalBusiness   Other-0.12112 %30 %
173Uses Microdata transcript   Other-0.12111 %20 %
174Uses Microdata video   Other-0.12111 %20 %
175Uses Schema professionalservice   Other-0.12111 %30 %
176Uses Schema video   Other-0.12111 %20 %
177Uses JSON-LD contactOption   Other-0.12111 %40 %
178Uses Schema contactoption   Other-0.12111 %40 %
179LSI Words in H3 Tags   Relevancy-0.12653172 %90 %
180Title Tag Has Entities   Relevancy-0.121188 %60 %
181Uses JSON-LD dayOfWeek   Other-0.12112 %50 %
182Uses Schema dayofweek   Other-0.12112 %50 %
183Uses Microdata AggregateRating   Other-0.12112 %20 %
184Number of Factors Used   Diversity-0.1127022797 %70 %
185Number of H2 Tags   Size-0.1113982 %100 %
186Uses JSON-LD disambiguatingDescription   Other-0.11112 %50 %
187Number of Social Pages   Authority-0.1114675 %70 %
188Uses JSON-LD sameAs   Other-0.11114 %70 %
189Clean Text Kilobytes   Size-0.11211588 %90 %
190Has Entities in H3 Tags   Relevancy-0.111160 %60 %
191Uses JSON-LD AggregateRating-0.11117 %60 %
192Uses JSON-LD Organization   Other-0.111143 %60 %
193Is Pagination Page   Other-0.111112 %70 %
194Uses Microdata address   Other-0.11112 %40 %
195Uses Microdata addressLocality   Other-0.11112 %40 %
196Uses Microdata PostalAddress   Other-0.11112 %40 %
197Is WordPress Website   Technology-0.111122 %40 %
198Uses JSON-LD PropertyValue   Other-0.11113 %40 %
199Uses Schema itemlist   Other-0.11114 %40 %
200Uses Schema propertyvalue   Other-0.11113 %40 %