Measures 149338 SEO Factors

147616 Built-In SEO Factors

138444 On-page SEO Factors

9172 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-0.26115 %44 %
2Entities in Title Tag   Relevancy-0.255376 %94 %
3Search Result Domain is .com   Other-0.25114 %44 %
4Number of Unique Variations Used   Diversity-0.2310683 %84 %
5Variations in Search Result Document File Name   Relevancy-0.222147 %81 %
6Entities in H1 Tags-0.223263 %88 %
7Number of Top 100 Shared Factors Used   Diversity-0.21353199 %84 %
8Number of Top 200 Shared Factors Used   Diversity-0.21474199 %88 %
9Entities in Sentences   Relevancy-0.221312578 %91 %
10Variations in Search Result URL Path   Relevancy-0.22151 %88 %
11Entities in the HTML Tag   Relevancy-0.221712882 %91 %
12Number of Unique LSI Words Used   Diversity-0.255233086 %91 %
13Number of Distinct Entities Used   Diversity-0.19402885 %97 %
14LSI Words in Title Tag   Relevancy-0.199783 %91 %
15Variations in Search Result URL   Relevancy-0.192261 %81 %
16Variations in the Canonical URL   Relevancy-0.192259 %84 %
17Number of Do Follow Backlinks   Authority-0.1820608166638 %72 %
18Number of Factors Used   Diversity-0.1821818499 %81 %
19LSI Words in H1 Tags   Relevancy-0.1810670 %88 %
20Entities in Meta Description Tag   Relevancy-0.186363 %81 %
21Number of Top 50 Shared Factors Used   Diversity-0.18151399 %84 %
22LSI Words in Sentences   Relevancy-0.18122377980 %88 %
23Load Time Milliseconds   Performance-0.183922133986 %81 %
24Exact Matches in the HTML Tag   Relevancy-0.1878519 %88 %
25Variations in P Tags   Relevancy-0.18462971 %84 %
26Has Entities in H1 Tags   Relevancy-0.171165 %81 %
27LSI Words in Meta Description Tag   Relevancy-0.17171366 %81 %
28Entities in H3 Tags-0.1712747 %94 %
29Number of Backlinks   Authority-0.1720802172942 %72 %
30Variations in H1 and H2 Tags   Relevancy-0.176467 %75 %
31Variations in H1, H2, and H3 Tags   Relevancy-0.1710668 %81 %
32Variations in First 100 Words   Relevancy-0.1714776 %78 %
33Entities in H2 Tags-0.1710659 %84 %
34Title Tag Has Entities   Relevancy-0.171177 %84 %
35Variations in H1 Tags   Relevancy-0.172160 %84 %
36Number of CSS Includes   Technology-0.17191175 %72 %
37Leading Variations in H1-H6 Tags   Relevancy-0.173242 %84 %
38Variations in H1-H6 Tags   Relevancy-0.1711669 %81 %
39Leading Variations in Title Tag   Relevancy-0.171128 %84 %
40Number of Referring Domains   Authority-0.16126110341 %78 %
41Variations in Sentences   Relevancy-0.16523578 %94 %
42Number of P Tags   Size-0.16733876 %78 %
43Percentage of DoFollow Links   Authority-0.16938381 %84 %
44Search Result Number of Dirs in Path   Other-0.163275 %88 %
45Variations in Script Tags   Relevancy-0.163565665 %94 %
46Number of H1 Tags   Size-0.163273 %84 %
47Leading Variations in H1, H2, and H3 Tags   Relevancy-0.163239 %84 %
48Variations in the Title Tag   Relevancy-0.162272 %81 %
49Number of External Links   Authority-0.16211275 %88 %
50Variations in Absolute URLs   Relevancy-0.161285071 %81 %
51Variation Count in Top 30KB   Relevancy-0.16371869 %97 %
52Exact Matches in Sentences   Relevancy-0.1610213 %81 %
53Number of Facebook Pages   Authority-0.163261 %78 %
54Search Result URL Length   Size-0.16776599 %75 %
55Variations in LI Tags   Relevancy-0.16501970 %91 %
56Variations in Div Tags   Relevancy-0.162259578 %91 %
57Variations in H2 Tags   Relevancy-0.165353 %69 %
58Unabridged Word Count   Size-0.162798170886 %88 %
59Variations in Meta Description   Relevancy-0.162259 %78 %
60Term Frequency   Relevancy-0.164382 %91 %
61Word Count in Meta Description   Size-0.15221867 %72 %
62Percentage of DoFollow External Links   Authority-0.15191073 %78 %
63Uses Schema identifier   Other-0.15116 %25 %
64Uses Microdata description   Other-0.15118 %28 %
65Number of DoFollow External Links   Authority-0.15201174 %91 %
66Uses Microdata genre   Other-0.15115 %25 %
67Uses Microdata regionsAllowed   Other-0.15115 %25 %
68Uses Microdata requiresSubscription   Other-0.15115 %25 %
69Uses Schema regionsallowed   Other-0.15115 %25 %
70Uses Schema requiressubscription   Other-0.15115 %25 %
71Variations in A Tags   Relevancy-0.15502067 %88 %
72Uses Microdata identifier   Other-0.15116 %25 %
73Uses Microdata playerType   Other-0.15115 %25 %
74Uses Schema playertype   Other-0.15115 %25 %
75Flesch Kincaid Reading Grade Level   Other-0.153196 %81 %
76Has Form   Technology-0.151150 %75 %
77Uses Microdata thumbnail   Other-0.15115 %25 %
78Uses Schema thumbnail   Other-0.15115 %25 %
79Exact Matches in H1-H6 Tags   Relevancy-0.153111 %81 %
80Uses JSON-LD table   Other-0.15112 %19 %
81Uses JSON-LD temporalCoverage   Other-0.15112 %19 %
82Uses Schema table   Other-0.15112 %19 %
83Uses Schema temporalcoverage   Other-0.15112 %19 %
84Variations in Body Tags   Relevancy-0.1547417482 %94 %
85Variations in HTML Tags   Relevancy-0.1547417482 %94 %
86Clean Text Kilobytes   Size-0.15171177 %88 %
87Variations in TITLE Attributes   Relevancy-0.1512547 %91 %
88Variations in OpenGraph Description   Relevancy-0.152257 %75 %
89Number of Images with ALT Text   Size-0.15291572 %81 %
90Uses Microdata sameAs   Other-0.15113 %16 %
91Variations making whole H1, H2, and H3 Tags   Relevancy-0.151114 %81 %
92Clean Keyword Density in the HTML Tag   Relevancy-0.155476 %81 %
93Has Meta Viewport   Technology-0.151184 %78 %
94Uses JSON-LD totalTime   Other-0.15111 %13 %
95Uses Schema totaltime   Other-0.15111 %13 %
96Leading Variations in H1 Tags   Relevancy-0.151124 %84 %
97Uses Microdata height   Other-0.15115 %25 %
98Uses Microdata width   Other-0.15115 %25 %
99Title Length   Size-0.15615286 %75 %
100Has US Phone Number   Trust-0.151144 %50 %
101Number of HTML Comments   Size-0.153984973 %78 %
102Number of Includes   Technology-0.14412984 %78 %
103Variations making whole H1 Tags   Relevancy-0.14116 %94 %
104Uses Schema mpn   Other-0.14111 %25 %
105Number of Questions   Size-0.14251173 %91 %
106Variations in Search Result Display URL   Relevancy-0.142288 %94 %
107Variations in Search Result Link Text   Relevancy-0.142288 %94 %
108Word Count   Size-0.142313123686 %88 %
109Number of HTTPS Links   Authority-0.1426012481 %84 %
110Number of DoFollow Links   Authority-0.1426312281 %84 %
111Variations in Strong Tags   Relevancy-0.145230 %84 %
112Variations in Distinct A Tag HREF Attributes   Relevancy-0.14992864 %88 %
113Variations in Figure Tags   Relevancy-0.1412412 %59 %
114TF/IDF   Relevancy-0.141166 %84 %
115Exact Matches in Top 30KB   Relevancy-0.146111 %81 %
116Number of Links   Authority-0.1427112581 %84 %
117Is OpenGraph Type Article   Technology-0.141141 %69 %
118Number of Internal Links   Authority-0.1425811581 %81 %
119Meta Description Length   Size-0.1413011167 %72 %
120Uses Microdata duration   Other-0.14115 %25 %
121Uses Microdata isFamilyFriendly   Other-0.14115 %28 %
122Has Meta Charset   Technology-0.141175 %75 %
123Variation Density in Top 30KB   Relevancy-0.143266 %81 %
124Variations in ALT Attributes   Relevancy-0.147449 %78 %
125Variations in OpenGraph Title   Relevancy-0.142262 %81 %
126Number of Email Addresses   Trust-0.149343 %75 %
127Variations in Span Tags   Relevancy-0.1417751 %78 %
128Exact Matches in Title Tag   Relevancy-0.14118 %78 %
129Uses Schema genre   Other-0.14115 %28 %
130Search Result Not .com .net or .org   Other-0.141195 %50 %
131Number of Sentences   Size-0.1419612285 %88 %
132Number of Social Pages   Authority-0.148465 %81 %
133Has Entities in H3 Tags   Relevancy-0.141149 %78 %
134Inline JavaScript Kilobytes   Size-0.1421311883 %88 %
135Page Size Kilobytes   Size-0.1439729585 %75 %
136Uses JSON-LD disambiguatingDescription-0.14112 %25 %
137Uses Schema disambiguatingdescription   Other-0.14112 %25 %
138Variations in Section Tags   Relevancy-0.13461635 %75 %
139Meta Description Tag Has Entities   Relevancy-0.131164 %72 %
140Number of Images   Size-0.13452477 %84 %
141Percentage of DoFollow Internal Links   Authority-0.13877481 %88 %
142Number of LinkedIn Pages   Authority-0.131122 %75 %
143Number of Heading Tags   Size-0.13331978 %78 %
144Variations making whole H1-H6 Tags   Relevancy-0.131115 %88 %
145Variations in A Tag HREF Attributes   Relevancy-0.131213964 %91 %
146Uses Schema homeandconstructionbusiness   Other-0.13112 %28 %
147Is Article Page   Other-0.131150 %72 %
148Uses JSON-LD InteractionCounter   Other-0.13113 %16 %
149LSI Words in H2 Tags   Relevancy-0.13412270 %78 %
150Uses Microdata VideoObject   Other-0.13114 %44 %
151Number of Facebook Accounts   Authority-0.131129 %84 %
152Uses Schema telephone   Other-0.131117 %56 %
153Uses JSON-LD headline   Other-0.131116 %53 %
154Has Privacy Policy   Trust-0.131155 %81 %
155Number of HTML Tags   Size-0.13165988787 %88 %
156Title Word Count   Size-0.1311885 %78 %
157Variations in Em Tags   Relevancy-0.13116 %84 %
158Uses Microdata uploadDate   Other-0.13115 %31 %
159Variations Making Whole Span Tags   Relevancy-0.131118 %69 %
160Uses Microdata LocalBusiness   Other-0.13114 %19 %
161Has Meta Description   Relevancy-0.131167 %75 %
162Has FavIcon   Technology-0.131178 %75 %
163Uses JSON-LD cssSelector   Other-0.13111 %22 %
164Uses Schema cssselector   Other-0.13111 %22 %
165Number of Social Accounts   Authority-0.132241 %88 %
166Uses Microdata thumbnailUrl   Other-0.13114 %44 %
167Search Result Uses HTTPS   Other-0.131187 %78 %
168Uses JSON-LD Dataset   Other-0.13112 %22 %
169Uses Schema dataset   Other-0.13112 %22 %
170Number of No Follow Backlinks   Authority-0.133726430 %75 %
171Exact Matches in A Tags   Relevancy-0.13719 %81 %
172Uses JSON-LD PropertyValueSpecification   Other-0.131120 %53 %
173Uses JSON-LD valueName   Other-0.131120 %53 %
174Uses Schema propertyvaluespecification   Other-0.131120 %53 %
175Uses Schema valuename   Other-0.131120 %53 %
176Uses Microdata InteractionCounter   Other-0.13117 %34 %
177Uses Microdata interactionStatistic   Other-0.13117 %34 %
178Uses Microdata interactionType   Other-0.13117 %34 %
179Uses Microdata userInteractionCount   Other-0.13117 %34 %
180Uses Schema interactionstatistic   Other-0.13117 %34 %
181Uses Schema videoobject   Other-0.13114 %59 %
182Variations making whole A Tags   Relevancy-0.133129 %81 %
183Has Entities in H2 Tags   Relevancy-0.131159 %72 %
184Uses JSON-LD price   Other-0.13114 %47 %
185Exact Matches in H1 Tags   Relevancy-0.13118 %81 %
186Uses JSON-LD itemCondition   Other-0.13112 %19 %
187Uses JSON-LD priceValidUntil   Other-0.13112 %19 %
188Uses Microdata video   Other-0.13111 %19 %
189Uses Schema itemcondition   Other-0.13112 %19 %
190Uses Schema pricevaliduntil   Other-0.13112 %19 %
191Uses Schema video   Other-0.13111 %19 %
192Variations Making Whole LI Tags   Relevancy-0.132124 %66 %
193Number of JavaScript Includes   Technology-0.13241983 %81 %
194LSI Words in H3 Tags   Relevancy-0.13522458 %91 %
195Search Result Summary Length   Size-0.1315915498 %78 %
196Uses Schema uploaddate   Other-0.13114 %56 %
197Has OpenGraph Type   Relevancy-0.131167 %78 %
198Has Canonical URL   Authority-0.131174 %81 %
199Variations in H3 Tags   Relevancy-0.135337 %91 %
200Uses Microdata acceptedAnswer   Other-0.13112 %19 %