Measures 149388 SEO Factors

147666 Built-In SEO Factors

138491 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-0.22116 %58 %
2Search Result Domain is .com   Other-0.21116 %57 %
3Entities in Title Tag   Relevancy-0.217369 %96 %
4Variations in Search Result Document File Name   Relevancy-0.23146 %74 %
5Number of Top 50 Shared Factors Used   Diversity-0.2161394 %90 %
6Number of Unique Variations Used   Diversity-0.224782 %82 %
7Number of Unique LSI Words Used   Diversity-0.297833484 %76 %
8Load Time Milliseconds   Performance-0.197535161385 %87 %
9Variations in Search Result URL   Relevancy-0.194259 %70 %
10Variations in Search Result URL Path   Relevancy-0.184250 %75 %
11Number of Top 100 Shared Factors Used   Diversity-0.18393094 %88 %
12Number of Top 200 Shared Factors Used   Diversity-0.18514094 %90 %
13Variations in H1 and H2 Tags   Relevancy-0.1812464 %78 %
14Entities in H1 Tags-0.186257 %89 %
15Number of Distinct Entities Used   Diversity-0.18542978 %92 %
16Variations in P Tags   Relevancy-0.185663369 %78 %
17Variations in H1-H6 Tags   Relevancy-0.1817766 %79 %
18Variations in H1, H2, and H3 Tags   Relevancy-0.1716666 %82 %
19Variations in the Canonical URL   Relevancy-0.174254 %79 %
20Number of Factors Used   Diversity-0.1727818596 %81 %
21Entities in the HTML Tag   Relevancy-0.1745014174 %87 %
22Number of Referring Domains   Authority-0.17157812347 %72 %
23Entities in Sentences   Relevancy-0.1744513871 %88 %
24Number of Backlinks   Authority-0.17141583487147 %72 %
25Number of Do Follow Backlinks   Authority-0.17339517657042 %72 %
26Entities in Meta Description Tag   Relevancy-0.178359 %86 %
27Entities in H2 Tags-0.1728755 %88 %
28Variations in Search Result Display URL   Relevancy-0.173284 %83 %
29Variations in Search Result Link Text   Relevancy-0.173284 %83 %
30Variations in H2 Tags   Relevancy-0.1711351 %76 %
31Leading Variations in H1-H6 Tags   Relevancy-0.166244 %81 %
32Variations in Meta Description   Relevancy-0.163260 %81 %
33Variations in Div Tags   Relevancy-0.16222212176 %88 %
34Variations in H1 Tags   Relevancy-0.163157 %79 %
35Variations in Sentences   Relevancy-0.161973875 %83 %
36Variations in Body Tags   Relevancy-0.16436424280 %88 %
37Variations in First 100 Words   Relevancy-0.1615772 %79 %
38Variations in HTML Tags   Relevancy-0.16436424079 %88 %
39Leading Variations in H1, H2, and H3 Tags   Relevancy-0.166241 %83 %
40Number of Facebook Pages   Authority-0.165257 %76 %
41Variations in Absolute URLs   Relevancy-0.162265967 %84 %
42Variations in Distinct A Tag HREF Attributes   Relevancy-0.161122763 %83 %
43Variations in the Title Tag   Relevancy-0.163270 %79 %
44Entities in H3 Tags-0.1631745 %94 %
45Number of No Follow Backlinks   Authority-0.16986154936 %70 %
46Variation Count in Top 30KB   Relevancy-0.161161968 %83 %
47Clean Text Kilobytes   Size-0.16531275 %81 %
48Variations in A Tag HREF Attributes   Relevancy-0.161604063 %85 %
49Search Result Number of Dirs in Path   Other-0.163274 %76 %
50Variations in LI Tags   Relevancy-0.158622467 %89 %
51Number of P Tags   Size-0.151354073 %79 %
52Term Frequency   Relevancy-0.154379 %85 %
53Variations in ALT Attributes   Relevancy-0.1583747 %74 %
54Number of Images   Size-0.153123076 %82 %
55Unabridged Word Count   Size-0.156243185585 %82 %
56Variations in A Tags   Relevancy-0.151432167 %87 %
57Number of Images with ALT Text   Size-0.153052171 %80 %
58Variations in Script Tags   Relevancy-0.157876866 %82 %
59Number of CSS Includes   Technology-0.15191174 %69 %
60Word Count   Size-0.154962145384 %82 %
61LSI Words in Sentences   Relevancy-0.15706574461 %88 %
62Clean Keyword Density in the HTML Tag   Relevancy-0.159474 %74 %
63Variations in Section Tags   Relevancy-0.15461738 %75 %
64Number of Includes   Technology-0.15462781 %75 %
65Leading Variations in H1 Tags   Relevancy-0.151125 %78 %
66Number of H1 Tags   Size-0.153270 %82 %
67Leading Variations in Title Tag   Relevancy-0.151129 %81 %
68Search Result URL Length   Size-0.14796297 %63 %
69Number of HTML Comments   Size-0.143984971 %84 %
70Number of Heading Tags   Size-0.14572275 %78 %
71Variations in OpenGraph Description   Relevancy-0.143255 %76 %
72Number of Links   Authority-0.1431412879 %77 %
73Variations in Span Tags   Relevancy-0.1429952 %80 %
74Variation Density in Top 30KB   Relevancy-0.144265 %76 %
75Number of DoFollow Links   Authority-0.1430212579 %78 %
76Number of HTTPS Links   Authority-0.1431412779 %78 %
77LSI Words in Title Tag   Relevancy-0.1414664 %91 %
78Has Meta Charset   Technology-0.141174 %74 %
79Number of Internal Links   Authority-0.1429811579 %78 %
80TF/IDF   Relevancy-0.141163 %79 %
81Number Of JSON-LD Types   Relevancy-0.14341457 %81 %
82LSI Words in H1 Tags   Relevancy-0.1418554 %89 %
83Number of Images without ALT Text   Size-0.1436957 %78 %
84Is Home Page   Other-0.141120 %40 %
85Number of Sentences   Size-0.1445813383 %79 %
86Number of HTML Tags   Size-0.14227296185 %83 %
87Variations in OpenGraph Title   Relevancy-0.143260 %77 %
88Percentage of DoFollow Links   Authority-0.14998481 %85 %
89Has Entities in H1 Tags   Relevancy-0.141156 %81 %
90Variations making whole H1-H6 Tags   Relevancy-0.141115 %75 %
91Leading Variations in H2 Tags   Relevancy-0.143121 %76 %
92Title Tag Has Entities   Relevancy-0.141169 %85 %
93Variations Making Whole Span Tags   Relevancy-0.143119 %70 %
94Variations making whole A Tags   Relevancy-0.143129 %76 %
95Percentage of DoFollow Internal Links   Authority-0.14897481 %81 %
96Number of H2 Tags   Size-0.1414768 %74 %
97Variations in H3 Tags   Relevancy-0.147338 %83 %
98Exact Matches in the HTML Tag   Relevancy-0.1484725 %84 %
99Has JSON-LD Schema Markup   Relevancy-0.131153 %75 %
100Number of H3 Tags   Size-0.1325959 %81 %
101Variations making whole H1, H2, and H3 Tags   Relevancy-0.131113 %75 %
102Has Meta Description   Relevancy-0.131168 %73 %
103Variations in Nav Tags   Relevancy-0.133132348 %86 %
104LSI Words in Meta Description Tag   Relevancy-0.13201052 %83 %
105Variations in TITLE Attributes   Relevancy-0.1325541 %77 %
106Number of US Phone Numbers   Trust-0.138231649 %78 %
107Has Form   Technology-0.131149 %71 %
108Number of Facebook Accounts   Authority-0.132128 %74 %
109Variations in Strong Tags   Relevancy-0.137229 %76 %
110Average Words Per Sentence   Size-0.131552978 %81 %
111Variations in Footer Tags   Relevancy-0.135491240 %81 %
112Has US Phone Number   Trust-0.131151 %64 %
113Has Canonical URL   Authority-0.131173 %74 %
114Number of Questions   Size-0.13681270 %74 %
115Number of Forms   Technology-0.136248 %74 %
116Uses Schema aggregaterating   Other-0.131112 %59 %
117Flesch Kincaid Reading Grade Level   Other-0.136293 %84 %
118Number of Questions In Headings   Size-0.137239 %78 %
119Meta Description Length   Size-0.1333912369 %73 %
120Has Meta Viewport   Technology-0.131182 %74 %
121Search Result Domain Length   Size-0.13241885 %74 %
122Search Result Host Length   Size-0.13241885 %74 %
123Number of DoFollow External Links   Authority-0.13301275 %75 %
124Inline CSS Kilobytes   Size-0.131456669 %81 %
125Variations Making Whole LI Tags   Relevancy-0.133125 %74 %
126Exact Matches in Sentences   Relevancy-0.1316216 %83 %
127Search Result Summary Length   Size-0.1216015496 %69 %
128Number of LinkedIn Pages   Authority-0.125132 %75 %
129Word Count in Meta Description   Size-0.12552069 %78 %
130Uses Schema product   Other-0.12117 %49 %
131Number of External Links   Authority-0.12371475 %78 %
132Uses JSON-LD DiscussionForumPosting   Other-0.12112 %12 %
133Is Article Page   Other-0.121147 %66 %
134Exact Matches in H1-H6 Tags   Relevancy-0.127114 %79 %
135Uses Schema bestrating   Other-0.12119 %45 %
136Uses JSON-LD AggregateRating   Other-0.12119 %62 %
137Variations making whole H1 Tags   Relevancy-0.12116 %81 %
138Search Result Uses HTTPS   Other-0.121184 %74 %
139Is OpenGraph Type Article   Technology-0.121138 %61 %
140Number of Questions In H2 Tags   Size-0.124125 %78 %
141Variations in Main Tags   Relevancy-0.125105938 %83 %
142Number of Social Pages   Authority-0.1223564 %74 %
143LSI Words in H2 Tags   Relevancy-0.12631952 %86 %
144Search Result Not .com .net or .org   Other-0.121192 %26 %
145Number of JavaScript Includes   Technology-0.12311882 %74 %
146Has Contact Page   Trust-0.121165 %69 %
147Number of Email Addresses   Trust-0.1298543 %74 %
148Number of Instagram Pages   Authority-0.1219244 %69 %
149Number of Questions In H3 Tags   Size-0.123117 %75 %
150Percentage of DoFollow External Links   Authority-0.12241175 %69 %
151Variations in the last 100 words   Relevancy-0.1211456 %78 %
152Leading Variations in H3 Tags   Relevancy-0.124116 %76 %
153Uses Schema localbusiness   Other-0.121112 %51 %
154Uses Microdata FAQPage   Other-0.12112 %22 %
155Entities in H4 Tags-0.128220 %83 %
156Number of H4 Tags   Size-0.1216436 %74 %
157Uses JSON-LD Review   Other-0.12116 %46 %
158Exact Matches in Top 30KB   Relevancy-0.1211114 %77 %
159Has Privacy Policy   Trust-0.121157 %72 %
160Number of Prices   Size-0.124226770 %78 %
161Uses JSON-LD bestRating   Other-0.12119 %46 %
162Has Entities in H3 Tags   Relevancy-0.121145 %81 %
163Uses Schema ratingvalue   Other-0.121112 %56 %
164Uses Microdata contentUrl-0.12112 %26 %
165Number of Nofollow Links   Authority-0.1213424 %73 %
166Uses Schema review   Other-0.12116 %44 %
167Has Meta Twitter Card   Authority-0.121156 %60 %
168Variations in Style Tags   Relevancy-0.12514711 %79 %
169Title Length   Size-0.12805385 %76 %
170Uses JSON-LD worstRating   Other-0.12116 %40 %
171Exact Matches in Title Tag   Relevancy-0.121113 %74 %
172Number of Social Accounts   Authority-0.124243 %79 %
173Uses JSON-LD Product   Other-0.12116 %52 %
174Has OpenGraph Type   Relevancy-0.121163 %69 %
175Variations in ID Attributes   Relevancy-0.127112 %78 %
176Has HREF Lang   Technology-0.12119 %66 %
177Headings Has Question   Other-0.121139 %70 %
178Has Entities in H2 Tags   Relevancy-0.121154 %81 %
179Uses Schema worstrating   Other-0.12116 %42 %
180Inline JavaScript Kilobytes   Size-0.1242111382 %69 %
181Meta Description Tag Has Entities   Relevancy-0.121158 %78 %
182Variations in Class Attributes   Relevancy-0.1213141317 %74 %
183Number of Meta Generator Tags   Technology-0.122140 %58 %
184Uses Schema image   Other-0.121123 %63 %
185Uses JSON-LD name   Other-0.121155 %72 %
186Uses JSON-LD interactionType   Other-0.12112 %17 %
187Uses JSON-LD InteractionCounter   Other-0.12112 %19 %
188Variations in Aside Tags   Relevancy-0.1233410 %72 %
189Number of Absolute URLs   Authority-0.1257928184 %81 %
190Variations in OpenGraph Site Name   Relevancy-0.121118 %67 %
191Uses JSON-LD BreadcrumbList   Other-0.111135 %66 %
192Uses Schema addressregion   Other-0.111121 %58 %
193Percentage of NoFollow Links   Authority-0.117222 %66 %
194Page Size Kilobytes   Size-0.1178230985 %72 %
195Variations in I Tags   Relevancy-0.1112426 %72 %
196Uses JSON-LD category   Other-0.11112 %23 %
197Uses Schema rating   Other-0.11117 %44 %
198Variations in Meta Twitter Description   Relevancy-0.112126 %63 %
199LSI Words in H3 Tags   Relevancy-0.11762145 %88 %
200Uses Schema category   Other-0.11112 %24 %