Measures 150086 SEO Factors

148364 Built-In SEO Factors

139166 On-page SEO Factors

9198 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-0.2323402147982 %92 %
2Number of Unique LSI Words Used   Diversity-0.22121729280 %80 %
3Number of Unique Variations Used   Diversity-0.2223678 %90 %
4Search Result Domain is .com, .net, or .org   Other-0.21116 %69 %
5Number of Top 200 Shared Factors Used   Diversity-0.21523896 %93 %
6Number of Top 100 Shared Factors Used   Diversity-0.21392996 %93 %
7Number of Top 50 Shared Factors Used   Diversity-0.21171295 %92 %
8Search Result Domain is .com   Other-0.2116 %69 %
9Entities in Title Tag   Relevancy-0.28362 %88 %
10Variations in Search Result Document File Name   Relevancy-0.27140 %86 %
11Variations in H1-H6 Tags   Relevancy-0.2309761 %91 %
12Variations in H1 and H2 Tags   Relevancy-0.19168458 %90 %
13Variations in H1, H2, and H3 Tags   Relevancy-0.19299660 %91 %
14Number of Factors Used   Diversity-0.1939517396 %90 %
15Number of Distinct Entities Used   Diversity-0.19632672 %89 %
16Variations in P Tags   Relevancy-0.1994073463 %91 %
17Variations in Body Tags   Relevancy-0.1917421238075 %90 %
18Variations in HTML Tags   Relevancy-0.1917421238075 %90 %
19Variations in Search Result URL Path   Relevancy-0.1912142 %87 %
20Variations in Div Tags   Relevancy-0.184812015971 %91 %
21Entities in H1 Tags-0.1810250 %88 %
22Variations in Sentences   Relevancy-0.1845773669 %90 %
23Variations in H1 Tags   Relevancy-0.1841150 %87 %
24Term Frequency   Relevancy-0.185375 %90 %
25Variations in Search Result URL   Relevancy-0.1824251 %84 %
26Entities in H2 Tags-0.1844648 %89 %
27Variations in LI Tags   Relevancy-0.1844662261 %90 %
28Word Count   Size-0.1813622137981 %90 %
29Unabridged Word Count   Size-0.1832037180982 %90 %
30Variations in A Tags   Relevancy-0.1755072961 %88 %
31Variations in Search Result Link Text   Relevancy-0.1720278 %83 %
32Variations in Search Result Display URL   Relevancy-0.1720278 %84 %
33Variations in the Title Tag   Relevancy-0.1719263 %85 %
34Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1716240 %87 %
35Leading Variations in H1-H6 Tags   Relevancy-0.1721242 %88 %
36LSI Words in Sentences   Relevancy-0.17540668762 %96 %
37Variations in H2 Tags   Relevancy-0.17127344 %87 %
38Variation Count in Top 30KB   Relevancy-0.1751472863 %89 %
39Clean Text Kilobytes   Size-0.171571270 %89 %
40Number of P Tags   Size-0.176343570 %89 %
41Number of Referring Domains   Authority-0.175102416642 %71 %
42Entities in the HTML Tag   Relevancy-0.1760912264 %96 %
43Entities in Sentences   Relevancy-0.1760611960 %96 %
44Number of HTML Tags   Size-0.176162100082 %89 %
45Variations in First 100 Words   Relevancy-0.17159664 %88 %
46Variations in the Canonical URL   Relevancy-0.1735245 %86 %
47Number of H1 Tags   Size-0.174166 %89 %
48Number of Images   Size-0.174423471 %89 %
49Number of Heading Tags   Size-0.171922071 %90 %
50LSI Words in Title Tag   Relevancy-0.1617665 %91 %
51Number of Backlinks   Authority-0.16780137904242 %71 %
52TF/IDF   Relevancy-0.161156 %87 %
53Variations in Absolute URLs   Relevancy-0.16148616157 %89 %
54Number of Images with ALT Text   Size-0.164362566 %89 %
55Leading Variations in Title Tag   Relevancy-0.161130 %85 %
56Number of H2 Tags   Size-0.1626764 %89 %
57Number of Do Follow Backlinks   Authority-0.16653204730438 %71 %
58Variations in Distinct A Tag HREF Attributes   Relevancy-0.1622042556 %89 %
59Number of HTTPS Links   Authority-0.16191914176 %88 %
60Number of DoFollow Links   Authority-0.16191813976 %88 %
61Number of Links   Authority-0.16192014276 %88 %
62Variations in A Tag HREF Attributes   Relevancy-0.1632073856 %90 %
63Flesch Kincaid Reading Grade Level   Other-0.167192 %87 %
64LSI Words in H1 Tags   Relevancy-0.1622454 %93 %
65Leading Variations in H1 Tags   Relevancy-0.162126 %85 %
66Variations in Meta Description   Relevancy-0.1645253 %85 %
67Variations in Span Tags   Relevancy-0.16582946 %89 %
68Clean Keyword Density in the HTML Tag   Relevancy-0.16173467 %82 %
69Number of Includes   Technology-0.16762578 %82 %
70Variations in Script Tags   Relevancy-0.164888110861 %85 %
71Number of Internal Links   Authority-0.1674312675 %88 %
72Exact Matches in the HTML Tag   Relevancy-0.16271925 %87 %
73Percentage of DoFollow Links   Authority-0.16988176 %88 %
74Variations in ALT Attributes   Relevancy-0.163481842 %87 %
75Number of Facebook Pages   Authority-0.1610254 %84 %
76LSI Words in H2 Tags   Relevancy-0.161172053 %94 %
77Variation Density in Top 30KB   Relevancy-0.16390358 %84 %
78Variations in OpenGraph Title   Relevancy-0.1516152 %83 %
79Has JSON-LD Schema Markup   Relevancy-0.151150 %82 %
80Search Result Number of Dirs in Path   Other-0.155269 %79 %
81Entities in H3 Tags-0.1535639 %89 %
82Number of Sentences   Size-0.1554012479 %86 %
83Has Entities in H1 Tags   Relevancy-0.151150 %85 %
84Has Meta Charset   Technology-0.151169 %83 %
85Number of No Follow Backlinks   Authority-0.15299474146232 %65 %
86Variations in Main Tags   Relevancy-0.15296987836 %87 %
87Number Of JSON-LD Types   Relevancy-0.151331453 %86 %
88Entities in Meta Description Tag   Relevancy-0.159353 %85 %
89Percentage of DoFollow Internal Links   Authority-0.15907075 %86 %
90Variations in Nav Tags   Relevancy-0.1575262843 %88 %
91Number of DoFollow External Links   Authority-0.1516031471 %86 %
92Average Words Per Sentence   Size-0.151943073 %83 %
93Number of HTML Comments   Size-0.1510574867 %85 %
94Number of H3 Tags   Size-0.1540856 %88 %
95Variations in H3 Tags   Relevancy-0.15131333 %88 %
96Variations in OpenGraph Description   Relevancy-0.1547247 %83 %
97Number of External Links   Authority-0.1516041572 %86 %
98Inline CSS Kilobytes   Size-0.151996163 %83 %
99Number of JavaScript Includes   Technology-0.15451778 %81 %
100Has Meta Viewport   Technology-0.151178 %84 %
101Has Entities in H2 Tags   Relevancy-0.151149 %85 %
102Search Result Uses HTTPS   Other-0.151181 %83 %
103Number of Images without ALT Text   Size-0.1469953 %87 %
104Search Result Domain Length   Size-0.14251781 %82 %
105Search Result Host Length   Size-0.14251781 %82 %
106Number of US Phone Numbers   Trust-0.147021542 %80 %
107Variations in Section Tags   Relevancy-0.148111736 %86 %
108Number of Absolute URLs   Authority-0.14209728180 %80 %
109LSI Words in Meta Description Tag   Relevancy-0.14321054 %90 %
110Number of Forms   Technology-0.1414248 %83 %
111Number of LinkedIn Pages   Authority-0.146129 %84 %
112Uses JSON-LD name   Other-0.141150 %81 %
113Variations making whole H1-H6 Tags   Relevancy-0.142115 %84 %
114Number of Social Pages   Authority-0.1424459 %83 %
115Leading Variations in H2 Tags   Relevancy-0.147120 %82 %
116Title Tag Has Entities   Relevancy-0.141162 %82 %
117Number of Questions In Headings   Size-0.148235 %85 %
118Number of CSS Includes   Technology-0.1431970 %80 %
119Variations making whole H1, H2, and H3 Tags   Relevancy-0.142113 %84 %
120Percentage of DoFollow External Links   Authority-0.14351269 %81 %
121Has Canonical URL   Authority-0.141167 %79 %
122Number of Email Addresses   Trust-0.14128440 %82 %
123Page Size Kilobytes   Size-0.1490831180 %74 %
124LSI Words in H3 Tags   Relevancy-0.142052045 %93 %
125Has US Phone Number   Trust-0.141142 %74 %
126Number of Questions   Size-0.132371265 %79 %
127Number of Instagram Pages   Authority-0.1320240 %80 %
128Has Form   Technology-0.131147 %79 %
129Variations in Strong Tags   Relevancy-0.1371225 %84 %
130Variations in Footer Tags   Relevancy-0.1332251334 %85 %
131Number of Social Accounts   Authority-0.1314239 %82 %
132Uses Schema name   Other-0.131158 %74 %
133Title Word Count   Size-0.1330880 %74 %
134Variations making whole A Tags   Relevancy-0.1313125 %82 %
135Has FavIcon   Technology-0.131172 %77 %
136Title Length   Size-0.131865180 %75 %
137Uses JSON-LD url   Other-0.131144 %80 %
138Variations Making Whole Span Tags   Relevancy-0.1311117 %83 %
139Number of H4 Tags   Size-0.1341333 %82 %
140Has Schema Markup   Relevancy-0.131161 %75 %
141Number of Prices   Size-0.1310318365 %78 %
142Meta Description Length   Size-0.1330011764 %77 %
143Headings Has Question   Other-0.131135 %81 %
144Uses JSON-LD BreadcrumbList   Other-0.131132 %76 %
145Inline JavaScript Kilobytes   Size-0.1346312477 %70 %
146Exact Matches in H1-H6 Tags   Relevancy-0.1311115 %88 %
147Uses JSON-LD ListItem   Other-0.131132 %77 %
148Variations Making Whole LI Tags   Relevancy-0.135121 %82 %
149Has Email   Trust-0.131140 %74 %
150Number of Questions In H2 Tags   Size-0.134123 %83 %
151Word Count in Meta Description   Size-0.13481964 %77 %
152Exact Matches in Top 30KB   Relevancy-0.1326215 %85 %
153Number of Facebook Accounts   Authority-0.133126 %78 %
154Uses Schema url   Other-0.131154 %70 %
155Variations in the last 100 words   Relevancy-0.13159348 %78 %
156Has Contact Page   Trust-0.121158 %76 %
157Variations in TITLE Attributes   Relevancy-0.12260536 %81 %
158Has OpenGraph Type   Relevancy-0.121159 %72 %
159Uses JSON-LD description   Other-0.121140 %73 %
160Number Of Claimed Brands   Other-0.1243223 %82 %
161Is Store Page   Other-0.121143 %70 %
162Has Privacy Policy   Trust-0.121154 %77 %
163Has Meta Description   Relevancy-0.121163 %74 %
164Is Article Page   Other-0.121142 %74 %
165Variations in I Tags   Relevancy-0.12293422 %81 %
166Has Entities in H3 Tags   Relevancy-0.121140 %82 %
167Variations in Article Tags   Relevancy-0.122561123 %80 %
168Entities in H4 Tags-0.1225218 %84 %
169Uses Schema organization   Other-0.121133 %71 %
170Uses Microdata potentialAction   Other-0.12113 %16 %
171Exact Matches in Title Tag   Relevancy-0.122113 %85 %
172Uses Microdata target   Other-0.12113 %17 %
173Uses Schema postaladdress   Other-0.121120 %67 %
174Number of Questions In H3 Tags   Size-0.125116 %79 %
175Uses Schema addresslocality   Other-0.121120 %67 %
176Uses Microdata SearchAction   Other-0.12113 %17 %
177Uses JSON-LD PostalAddress   Other-0.121119 %68 %
178Variations making whole H1 Tags   Relevancy-0.12118 %83 %
179Exact Matches in Sentences   Relevancy-0.1246217 %89 %
180Number of Twitter Accounts   Authority-0.1213122 %79 %
181Is OpenGraph Type Article   Technology-0.121131 %68 %
182Uses Schema breadcrumblist   Other-0.121139 %68 %
183Uses Schema webpage   Other-0.121132 %72 %
184Uses JSON-LD addressLocality   Other-0.121118 %69 %
185Uses Schema website   Other-0.121133 %70 %
186Uses Schema postalcode   Other-0.121118 %67 %
187Has Apple Touch Icon   Technology-0.121147 %73 %
188Leading Variations in H3 Tags   Relevancy-0.129114 %80 %
189Uses Schema image   Other-0.121120 %71 %
190Has OpenGraph Image   Relevancy-0.121151 %71 %
191Uses Schema streetaddress   Other-0.121118 %67 %
192Has Meta Twitter Card   Authority-0.121151 %67 %
193Variations in H4-H6 Tags   Relevancy-0.1247116 %80 %
194Uses JSON-LD postalCode   Other-0.121117 %68 %
195Uses Schema listitem   Other-0.121140 %68 %
196Uses JSON-LD ImageObject   Other-0.121129 %73 %
197Uses JSON-LD item   Other-0.121121 %72 %
198Uses JSON-LD Organization   Other-0.121129 %74 %
199Search Result Summary Length   Size-0.1218815395 %78 %
200Uses JSON-LD streetAddress   Other-0.121117 %68 %