Measures 149690 SEO Factors

147968 Built-In SEO Factors

138793 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-0.22115 %68 %
2Search Result Domain is .com   Other-0.21115 %67 %
3Number of Top 50 Shared Factors Used   Diversity-0.21161294 %91 %
4Number of Unique LSI Words Used   Diversity-0.2127332681 %77 %
5Load Time Milliseconds   Performance-0.27535142481 %89 %
6Variations in Search Result Document File Name   Relevancy-0.235243 %82 %
7Number of Unique Variations Used   Diversity-0.249778 %88 %
8Number of Top 100 Shared Factors Used   Diversity-0.2392993 %92 %
9Number of Top 200 Shared Factors Used   Diversity-0.2513893 %93 %
10Entities in Title Tag   Relevancy-0.197360 %95 %
11Variations in Search Result URL Path   Relevancy-0.1953246 %82 %
12Number of Factors Used   Diversity-0.1858218094 %85 %
13Variations in Search Result URL   Relevancy-0.18151255 %78 %
14Variations in P Tags   Relevancy-0.185662965 %86 %
15Number of Backlinks   Authority-0.18203862748447 %34 %
16Variations in H1, H2, and H3 Tags   Relevancy-0.1837661 %87 %
17Variations in Search Result Link Text   Relevancy-0.183278 %82 %
18Variations in H1-H6 Tags   Relevancy-0.1837762 %86 %
19Number of Referring Domains   Authority-0.182865833247 %34 %
20Variations in H1 and H2 Tags   Relevancy-0.1812459 %87 %
21Variations in Search Result Display URL   Relevancy-0.1853278 %83 %
22Number of Do Follow Backlinks   Authority-0.17339517887442 %34 %
23Variations in Div Tags   Relevancy-0.17222210072 %89 %
24Variations in Body Tags   Relevancy-0.17436420276 %90 %
25Number of Distinct Entities Used   Diversity-0.17612568 %93 %
26Variations in HTML Tags   Relevancy-0.17436420176 %90 %
27Variations in Sentences   Relevancy-0.174313471 %86 %
28Variations in H1 Tags   Relevancy-0.173152 %83 %
29Variations in First 100 Words   Relevancy-0.1714331867 %82 %
30Variation Count in Top 30KB   Relevancy-0.174917439864 %86 %
31Variations in the Canonical URL   Relevancy-0.17499449 %84 %
32Entities in H1 Tags-0.176249 %91 %
33Variations in the Title Tag   Relevancy-0.173265 %82 %
34Term Frequency   Relevancy-0.174376 %88 %
35Variations in Absolute URLs   Relevancy-0.16134890106462 %86 %
36Leading Variations in H1-H6 Tags   Relevancy-0.169242 %84 %
37Leading Variations in H1 Tags   Relevancy-0.162125 %80 %
38Leading Variations in H1, H2, and H3 Tags   Relevancy-0.168240 %85 %
39Variations in H2 Tags   Relevancy-0.1611346 %85 %
40Variations in Meta Description   Relevancy-0.163254 %85 %
41Search Result Number of Dirs in Path   Other-0.163270 %77 %
42Variations in A Tags   Relevancy-0.162601963 %84 %
43Number of No Follow Backlinks   Authority-0.162619981836 %33 %
44Variations in LI Tags   Relevancy-0.168621963 %88 %
45Variations in Distinct A Tag HREF Attributes   Relevancy-0.161262260 %87 %
46Clean Keyword Density in the HTML Tag   Relevancy-0.1610369 %78 %
47Variations in A Tag HREF Attributes   Relevancy-0.161803460 %87 %
48Clean Text Kilobytes   Size-0.16671271 %83 %
49Entities in the HTML Tag   Relevancy-0.1655711963 %91 %
50Number of Facebook Pages   Authority-0.165253 %82 %
51Entities in Sentences   Relevancy-0.1555511659 %91 %
52LSI Words in Title Tag   Relevancy-0.1514561 %93 %
53Variations in Script Tags   Relevancy-0.157875862 %85 %
54Leading Variations in Title Tag   Relevancy-0.151129 %82 %
55Variations in ALT Attributes   Relevancy-0.1583643 %82 %
56Word Count   Size-0.154962138482 %85 %
57Unabridged Word Count   Size-0.1512283180581 %85 %
58Entities in H2 Tags-0.1534646 %91 %
59Number of Images with ALT Text   Size-0.153622367 %85 %
60TF/IDF   Relevancy-0.151159 %83 %
61Number of Images   Size-0.153683172 %85 %
62Variation Density in Top 30KB   Relevancy-0.1526242461 %80 %
63Percentage of DoFollow Links   Authority-0.15998277 %86 %
64Entities in Meta Description Tag   Relevancy-0.158350 %90 %
65Number of H1 Tags   Size-0.153167 %83 %
66Variations in OpenGraph Description   Relevancy-0.153249 %83 %
67Number Of JSON-LD Types   Relevancy-0.15721453 %82 %
68Number of P Tags   Size-0.151353870 %85 %
69Flesch Kincaid Reading Grade Level   Other-0.156291 %85 %
70Number of HTTPS Links   Authority-0.1540012977 %81 %
71Percentage of DoFollow Internal Links   Authority-0.15937277 %82 %
72Number of Includes   Technology-0.15462578 %79 %
73Number of DoFollow Links   Authority-0.1539412677 %82 %
74Number of Internal Links   Authority-0.1438411676 %82 %
75Has Meta Charset   Technology-0.141170 %82 %
76Has JSON-LD Schema Markup   Relevancy-0.141151 %78 %
77Number of Heading Tags   Size-0.14572172 %82 %
78Number of HTML Tags   Size-0.14241692182 %85 %
79Number of HTML Comments   Size-0.143984268 %85 %
80LSI Words in Sentences   Relevancy-0.14706569658 %92 %
81Variations in Span Tags   Relevancy-0.1479848 %83 %
82Variations in OpenGraph Title   Relevancy-0.143154 %82 %
83Variations in Section Tags   Relevancy-0.14551636 %81 %
84Number of CSS Includes   Technology-0.14191071 %74 %
85Number of H2 Tags   Size-0.1431764 %80 %
86Number of Links   Authority-0.1439612677 %82 %
87Average Words Per Sentence   Size-0.141552974 %82 %
88Number of Images without ALT Text   Size-0.141481054 %82 %
89Number of DoFollow External Links   Authority-0.14441371 %80 %
90LSI Words in H1 Tags   Relevancy-0.1418451 %90 %
91Search Result Domain Length   Size-0.14241781 %77 %
92Inline CSS Kilobytes   Size-0.142456064 %82 %
93Variations in H3 Tags   Relevancy-0.1435334 %85 %
94Exact Matches in the HTML Tag   Relevancy-0.143651026 %85 %
95Entities in H3 Tags-0.1431638 %93 %
96Search Result Uses HTTPS   Other-0.141180 %77 %
97Search Result URL Length   Size-0.14896094 %64 %
98Number of LinkedIn Pages   Authority-0.146130 %77 %
99Variations in Main Tags   Relevancy-0.145105437 %84 %
100Leading Variations in H2 Tags   Relevancy-0.144121 %78 %
101Number of External Links   Authority-0.14451472 %79 %
102Number of Email Addresses   Trust-0.1498439 %79 %
103Variations in Nav Tags   Relevancy-0.143132045 %87 %
104Percentage of DoFollow External Links   Authority-0.14271170 %75 %
105Number of Sentences   Size-0.1445812479 %83 %
106Search Result Not .com .net or .org   Other-0.141188 %18 %
107Search Result Host Length   Size-0.14241782 %77 %
108Number of Social Pages   Authority-0.1323458 %77 %
109Has Canonical URL   Authority-0.131169 %76 %
110Number of H3 Tags   Size-0.1340857 %84 %
111Has Meta Viewport   Technology-0.131179 %77 %
112Variations making whole A Tags   Relevancy-0.136126 %79 %
113Uses JSON-LD name   Other-0.131151 %75 %
114Variations in Footer Tags   Relevancy-0.13549937 %79 %
115Has Entities in H1 Tags   Relevancy-0.131148 %86 %
116Has FavIcon   Technology-0.131173 %73 %
117Number of Instagram Pages   Authority-0.1319240 %74 %
118Number of US Phone Numbers   Trust-0.138231141 %81 %
119Variations in the last 100 words   Relevancy-0.1314481650 %78 %
120Number of Absolute URLs   Authority-0.1381827280 %82 %
121Number of Questions In Headings   Size-0.137235 %81 %
122LSI Words in Meta Description Tag   Relevancy-0.13211050 %90 %
123Uses Schema aggregaterating   Other-0.131110 %57 %
124Has Meta Description   Relevancy-0.131165 %77 %
125Number of Social Accounts   Authority-0.1313240 %79 %
126Variations making whole H1-H6 Tags   Relevancy-0.132114 %76 %
127Has Email   Trust-0.131139 %70 %
128Variations in Strong Tags   Relevancy-0.1321226 %79 %
129Number of Facebook Accounts   Authority-0.132127 %76 %
130Number of JavaScript Includes   Technology-0.13321778 %79 %
131Has Contact Page   Trust-0.131158 %73 %
132Title Word Count   Size-0.1312880 %80 %
133Number of Forms   Technology-0.1310246 %78 %
134Uses JSON-LD url   Other-0.131144 %72 %
135LSI Words in H2 Tags   Relevancy-0.13982049 %89 %
136Page Size Kilobytes   Size-0.1397430180 %73 %
137Meta Description Length   Size-0.1333911765 %79 %
138Uses Schema name   Other-0.131158 %69 %
139Title Tag Has Entities   Relevancy-0.131159 %87 %
140Title Length   Size-0.12885181 %81 %
141Variations making whole H1, H2, and H3 Tags   Relevancy-0.122112 %76 %
142Has Form   Technology-0.121147 %75 %
143Has Schema Markup   Relevancy-0.121162 %72 %
144Has OpenGraph Type   Relevancy-0.121159 %71 %
145Variations Making Whole Span Tags   Relevancy-0.1215117 %74 %
146Is OpenGraph Type Article   Technology-0.121133 %65 %
147Has US Phone Number   Trust-0.121142 %72 %
148Exact Matches in H1-H6 Tags   Relevancy-0.127115 %83 %
149Word Count in Meta Description   Size-0.12551965 %81 %
150Is Article Page   Other-0.121143 %72 %
151Uses Schema product   Other-0.12117 %48 %
152Uses Schema image   Other-0.121121 %69 %
153Number of Questions   Size-0.12681165 %80 %
154Variations in TITLE Attributes   Relevancy-0.1258538 %77 %
155Is Home Page   Other-0.121118 %45 %
156Uses JSON-LD BreadcrumbList   Other-0.121133 %71 %
157Search Result Summary Length   Size-0.1219415493 %74 %
158Variations in Meta Twitter Description   Relevancy-0.122123 %71 %
159Uses Schema operatingsystem   Other-0.12114 %13 %
160Number of Prices   Size-0.126207365 %79 %
161Headings Has Question   Other-0.121134 %73 %
162Uses JSON-LD AggregateRating   Other-0.12119 %61 %
163Uses JSON-LD image   Other-0.121116 %69 %
164Inline JavaScript Kilobytes   Size-0.1251111677 %71 %
165Uses Schema applicationcategory   Other-0.12114 %14 %
166Number Of Claimed Brands   Other-0.1214223 %77 %
167Exact Matches in Sentences   Relevancy-0.1238217 %82 %
168Uses JSON-LD description   Other-0.121140 %72 %
169Variations Making Whole LI Tags   Relevancy-0.128122 %78 %
170Number of Questions In H2 Tags   Size-0.124122 %77 %
171Uses JSON-LD item   Other-0.121123 %66 %
172Variations in I Tags   Relevancy-0.1214323 %75 %
173Leading Variations in H3 Tags   Relevancy-0.126115 %77 %
174Uses JSON-LD Product   Other-0.12116 %49 %
175Uses JSON-LD ListItem   Other-0.121133 %71 %
176Uses Schema url   Other-0.121153 %67 %
177Number of H4 Tags   Size-0.1216334 %78 %
178Uses JSON-LD founder   Other-0.12111 %11 %
179Number of HREF Lang Tags   Size-0.1232210 %73 %
180Uses Schema pricecurrency   Other-0.12115 %47 %
181Uses JSON-LD DiscussionForumPosting   Other-0.12112 %11 %
182Uses Schema ratingvalue   Other-0.121110 %55 %
183Uses Schema organization   Other-0.121133 %69 %
184Has OpenGraph Image   Relevancy-0.121150 %70 %
185Has Privacy Policy   Trust-0.121153 %78 %
186Uses JSON-LD HomeAndConstructionBusiness   Other-0.12113 %19 %
187Uses Schema founder   Other-0.12111 %11 %
188Uses JSON-LD operatingSystem   Other-0.12114 %13 %
189Variations in Button Tags   Relevancy-0.124528 %73 %
190Uses Schema worstrating   Other-0.12115 %46 %
191Uses Schema bestrating   Other-0.12117 %50 %
192Uses Microdata contentUrl-0.12112 %25 %
193Uses JSON-LD applicationCategory   Other-0.12114 %14 %
194Percentage of NoFollow Internal Links   Authority-0.1212111 %70 %
195Uses Schema softwareapplication   Other-0.12113 %12 %
196Variations in Meta Twitter Content   Relevancy-0.112125 %69 %
197Exact Matches in Top 30KB   Relevancy-0.1121214 %80 %
198Number of Meta Generator Tags   Technology-0.112135 %64 %
199Has Meta Twitter Card   Authority-0.111152 %64 %
200Uses Schema localbusiness   Other-0.111110 %51 %