Measures 150044 SEO Factors

148322 Built-In SEO Factors

139125 On-page SEO Factors

9197 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 2026-03     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Load Time Milliseconds   Performance-0.2320717144982 %91 %
2Number of Unique LSI Words Used   Diversity-0.22121728479 %80 %
3Number of Unique Variations Used   Diversity-0.2219677 %91 %
4Number of Top 200 Shared Factors Used   Diversity-0.22513896 %93 %
5Number of Top 100 Shared Factors Used   Diversity-0.21382996 %93 %
6Number of Top 50 Shared Factors Used   Diversity-0.21171295 %93 %
7Search Result Domain is .com, .net, or .org   Other-0.21116 %68 %
8Entities in Title Tag   Relevancy-0.218364 %87 %
9Variations in Search Result Document File Name   Relevancy-0.25140 %86 %
10Variations in H1-H6 Tags   Relevancy-0.2128761 %91 %
11Variations in H1, H2, and H3 Tags   Relevancy-0.2119660 %91 %
12Variations in H1 and H2 Tags   Relevancy-0.240458 %90 %
13Number of Factors Used   Diversity-0.1927017396 %90 %
14Search Result Domain is .com   Other-0.19116 %67 %
15Number of Distinct Entities Used   Diversity-0.19632673 %88 %
16Variations in P Tags   Relevancy-0.198502664 %91 %
17Variations in Search Result URL Path   Relevancy-0.195142 %87 %
18Variations in Body Tags   Relevancy-0.196431124676 %90 %
19Variations in HTML Tags   Relevancy-0.196431124675 %90 %
20Entities in H1 Tags-0.1810251 %87 %
21Variations in Div Tags   Relevancy-0.182011910371 %91 %
22Entities in H2 Tags-0.1844749 %88 %
23Variations in Search Result URL   Relevancy-0.1817251 %84 %
24Variations in H1 Tags   Relevancy-0.188151 %87 %
25Variations in Sentences   Relevancy-0.1823293170 %90 %
26Term Frequency   Relevancy-0.184376 %90 %
27Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1811241 %87 %
28Variations in LI Tags   Relevancy-0.1815631962 %90 %
29Variations in the Title Tag   Relevancy-0.179263 %85 %
30Leading Variations in H1-H6 Tags   Relevancy-0.1712243 %87 %
31Variations in A Tags   Relevancy-0.1729372262 %88 %
32Variations in Search Result Link Text   Relevancy-0.1710278 %84 %
33Variations in Search Result Display URL   Relevancy-0.1710278 %84 %
34Variations in H2 Tags   Relevancy-0.1732344 %87 %
35Unabridged Word Count   Size-0.1714365173681 %90 %
36Word Count   Size-0.176869134381 %90 %
37LSI Words in Sentences   Relevancy-0.17422266662 %96 %
38Variation Count in Top 30KB   Relevancy-0.1741412464 %89 %
39Clean Text Kilobytes   Size-0.17761271 %90 %
40Variations in the Canonical URL   Relevancy-0.1722246 %86 %
41Number of P Tags   Size-0.171463570 %89 %
42Variations in First 100 Words   Relevancy-0.17118665 %88 %
43Entities in the HTML Tag   Relevancy-0.1757412165 %96 %
44Entities in Sentences   Relevancy-0.1748011861 %96 %
45Number of HTML Tags   Size-0.174502101382 %88 %
46TF/IDF   Relevancy-0.171156 %87 %
47Leading Variations in Title Tag   Relevancy-0.171131 %86 %
48Number of Images   Size-0.173223572 %89 %
49LSI Words in Title Tag   Relevancy-0.1614564 %91 %
50Number of H1 Tags   Size-0.164166 %89 %
51Number of Referring Domains   Authority-0.162360113742 %69 %
52Leading Variations in H1 Tags   Relevancy-0.162126 %86 %
53Number of Heading Tags   Size-0.16762072 %90 %
54Variations in Distinct A Tag HREF Attributes   Relevancy-0.1610692257 %88 %
55Number of Images with ALT Text   Size-0.162922666 %88 %
56Variations in Absolute URLs   Relevancy-0.1665735058 %89 %
57Variations in A Tag HREF Attributes   Relevancy-0.1616003557 %89 %
58Variations in Script Tags   Relevancy-0.16244758061 %85 %
59Number of Backlinks   Authority-0.16653492916542 %70 %
60Flesch Kincaid Reading Grade Level   Other-0.166192 %88 %
61Number of H2 Tags   Size-0.1624765 %91 %
62LSI Words in H1 Tags   Relevancy-0.1622454 %93 %
63Variations in Meta Description   Relevancy-0.1623253 %85 %
64Variations in Span Tags   Relevancy-0.16582847 %88 %
65Clean Keyword Density in the HTML Tag   Relevancy-0.16136468 %83 %
66Number of HTTPS Links   Authority-0.16191914676 %87 %
67Percentage of DoFollow Links   Authority-0.16988177 %89 %
68Number of DoFollow Links   Authority-0.16191814376 %88 %
69Number of Links   Authority-0.16192014776 %87 %
70Variations in ALT Attributes   Relevancy-0.16861743 %87 %
71Number of Facebook Pages   Authority-0.1610254 %84 %
72Exact Matches in the HTML Tag   Relevancy-0.16271924 %87 %
73Number of Includes   Technology-0.16522578 %83 %
74Has Entities in H1 Tags   Relevancy-0.161152 %84 %
75LSI Words in H2 Tags   Relevancy-0.161172053 %94 %
76Search Result Number of Dirs in Path   Other-0.165268 %79 %
77Variation Density in Top 30KB   Relevancy-0.16192259 %83 %
78Number of Internal Links   Authority-0.1674313175 %88 %
79Number of Do Follow Backlinks   Authority-0.16653204784738 %69 %
80Number of Sentences   Size-0.1654012279 %85 %
81Entities in H3 Tags-0.1635641 %87 %
82Variations in OpenGraph Title   Relevancy-0.156152 %83 %
83Has Meta Charset   Technology-0.151169 %83 %
84Has JSON-LD Schema Markup   Relevancy-0.151151 %82 %
85Entities in Meta Description Tag   Relevancy-0.159354 %84 %
86Number Of JSON-LD Types   Relevancy-0.151331453 %86 %
87Variations in Nav Tags   Relevancy-0.1514502044 %87 %
88Percentage of DoFollow Internal Links   Authority-0.15907075 %86 %
89Inline CSS Kilobytes   Size-0.151996163 %83 %
90Variations in Main Tags   Relevancy-0.15109155336 %86 %
91Variations in H3 Tags   Relevancy-0.1580333 %89 %
92Has Meta Viewport   Technology-0.151178 %85 %
93Search Result Uses HTTPS   Other-0.151181 %83 %
94Has Entities in H2 Tags   Relevancy-0.151150 %85 %
95Average Words Per Sentence   Size-0.151943073 %83 %
96Number of No Follow Backlinks   Authority-0.15299474140331 %64 %
97Number of HTML Comments   Size-0.1510574967 %85 %
98Number of DoFollow External Links   Authority-0.1516031371 %87 %
99Number of H3 Tags   Size-0.1540956 %88 %
100Number of JavaScript Includes   Technology-0.15351678 %82 %
101Variations in OpenGraph Description   Relevancy-0.1421247 %84 %
102Number of External Links   Authority-0.1416041572 %86 %
103Number of Images without ALT Text   Size-0.1469954 %86 %
104Number of Absolute URLs   Authority-0.14209728580 %80 %
105Search Result Domain Length   Size-0.14251781 %82 %
106Search Result Host Length   Size-0.14251781 %82 %
107Number of LinkedIn Pages   Authority-0.146129 %85 %
108Number of US Phone Numbers   Trust-0.147021643 %80 %
109Number of Social Pages   Authority-0.1424459 %84 %
110Title Tag Has Entities   Relevancy-0.141163 %81 %
111Leading Variations in H2 Tags   Relevancy-0.144121 %83 %
112Variations in Section Tags   Relevancy-0.145611736 %86 %
113LSI Words in Meta Description Tag   Relevancy-0.14321053 %90 %
114Variations making whole H1-H6 Tags   Relevancy-0.142115 %84 %
115Number of Forms   Technology-0.1414249 %82 %
116Uses JSON-LD name   Other-0.141150 %81 %
117Number of Questions In Headings   Size-0.148235 %86 %
118Variations making whole H1, H2, and H3 Tags   Relevancy-0.141113 %84 %
119Has Canonical URL   Authority-0.141167 %79 %
120Number of Email Addresses   Trust-0.14128440 %82 %
121Page Size Kilobytes   Size-0.1490830780 %75 %
122Percentage of DoFollow External Links   Authority-0.14321169 %81 %
123Number of CSS Includes   Technology-0.1419970 %79 %
124Number of Questions   Size-0.142371265 %79 %
125LSI Words in H3 Tags   Relevancy-0.142052046 %93 %
126Variations in Strong Tags   Relevancy-0.1327225 %85 %
127Has US Phone Number   Trust-0.131143 %75 %
128Number of Instagram Pages   Authority-0.1320239 %81 %
129Inline JavaScript Kilobytes   Size-0.1346311977 %71 %
130Uses Schema name   Other-0.131158 %75 %
131Has FavIcon   Technology-0.131172 %77 %
132Variations in Footer Tags   Relevancy-0.139311034 %85 %
133Variations making whole A Tags   Relevancy-0.1313126 %82 %
134Variations Making Whole Span Tags   Relevancy-0.1311118 %83 %
135Has Schema Markup   Relevancy-0.131161 %75 %
136Title Word Count   Size-0.1315880 %73 %
137Number of Prices   Size-0.1310318265 %79 %
138Has Form   Technology-0.131148 %79 %
139Uses JSON-LD BreadcrumbList   Other-0.131132 %77 %
140Variations Making Whole LI Tags   Relevancy-0.135122 %82 %
141Number of Social Accounts   Authority-0.1314239 %82 %
142Title Length   Size-0.131115080 %75 %
143Meta Description Length   Size-0.1330011664 %76 %
144Uses JSON-LD ListItem   Other-0.131133 %77 %
145Number of H4 Tags   Size-0.1323333 %82 %
146Headings Has Question   Other-0.131135 %81 %
147Uses JSON-LD url   Other-0.131144 %81 %
148Has Email   Trust-0.131140 %73 %
149Number of Questions In H2 Tags   Size-0.134123 %83 %
150Word Count in Meta Description   Size-0.13481965 %77 %
151Uses Schema url   Other-0.131154 %72 %
152Variations in the last 100 words   Relevancy-0.13116348 %77 %
153Exact Matches in H1-H6 Tags   Relevancy-0.1311115 %88 %
154Variations in TITLE Attributes   Relevancy-0.12260536 %81 %
155Is Store Page   Other-0.121143 %70 %
156Has Meta Description   Relevancy-0.121164 %74 %
157Number Of Claimed Brands   Other-0.1243223 %83 %
158Has Contact Page   Trust-0.121157 %77 %
159Has Entities in H3 Tags   Relevancy-0.121142 %81 %
160Exact Matches in Top 30KB   Relevancy-0.1226214 %84 %
161Variations in I Tags   Relevancy-0.12293423 %81 %
162Number of Facebook Accounts   Authority-0.123126 %78 %
163Uses JSON-LD description   Other-0.121139 %74 %
164Has Privacy Policy   Trust-0.121153 %77 %
165Has OpenGraph Type   Relevancy-0.121158 %73 %
166Entities in H4 Tags-0.1225219 %83 %
167Is Article Page   Other-0.121141 %74 %
168Uses Schema breadcrumblist   Other-0.121139 %70 %
169Uses Schema postaladdress   Other-0.121120 %69 %
170Uses Schema addresslocality   Other-0.121120 %69 %
171Uses Microdata potentialAction   Other-0.12114 %18 %
172Uses Schema listitem   Other-0.121140 %70 %
173Variations making whole H1 Tags   Relevancy-0.12118 %83 %
174Variations in Article Tags   Relevancy-0.122561122 %80 %
175Uses JSON-LD PostalAddress   Other-0.121119 %70 %
176Number of Questions In H3 Tags   Size-0.125116 %80 %
177Uses Microdata target   Other-0.12113 %19 %
178Uses Schema postalcode   Other-0.121119 %69 %
179Has Apple Touch Icon   Technology-0.121148 %74 %
180Uses Schema webpage   Other-0.121133 %72 %
181Uses Schema streetaddress   Other-0.121118 %70 %
182Uses Microdata SearchAction   Other-0.12113 %19 %
183Exact Matches in Title Tag   Relevancy-0.122113 %84 %
184Uses JSON-LD addressLocality   Other-0.121119 %70 %
185Uses JSON-LD postalCode   Other-0.121117 %69 %
186Is OpenGraph Type Article   Technology-0.121130 %68 %
187Leading Variations in H3 Tags   Relevancy-0.127115 %80 %
188Meta Description Tag Has Entities   Relevancy-0.121154 %76 %
189Uses JSON-LD streetAddress   Other-0.121117 %69 %
190Number of Twitter Accounts   Authority-0.1213122 %78 %
191Variations in H4-H6 Tags   Relevancy-0.1210117 %79 %
192Uses Schema potentialaction   Other-0.12114 %18 %
193Uses JSON-LD item   Other-0.121120 %73 %
194Has OpenGraph Image   Relevancy-0.121151 %71 %
195Uses JSON-LD ImageObject   Other-0.121129 %73 %
196Uses Schema organization   Other-0.121133 %71 %
197Uses Schema website   Other-0.121133 %71 %
198Has Meta Twitter Card   Authority-0.121151 %67 %
199Search Result Summary Length   Size-0.1217315395 %78 %
200Uses Schema addressregion   Other-0.121120 %64 %