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 %62 %
2Search Result Domain is .com   Other-0.22115 %61 %
3Entities in Title Tag   Relevancy-0.217367 %95 %
4Number of Top 50 Shared Factors Used   Diversity-0.21161394 %90 %
5Variations in Search Result Document File Name   Relevancy-0.23146 %75 %
6Number of Unique Variations Used   Diversity-0.224781 %83 %
7Number of Unique LSI Words Used   Diversity-0.297833283 %75 %
8Load Time Milliseconds   Performance-0.197535164584 %86 %
9Variations in Search Result URL Path   Relevancy-0.194250 %76 %
10Variations in Search Result URL   Relevancy-0.194258 %72 %
11Number of Top 200 Shared Factors Used   Diversity-0.18514093 %90 %
12Number of Top 100 Shared Factors Used   Diversity-0.18393093 %89 %
13Variations in H1 and H2 Tags   Relevancy-0.1812462 %79 %
14Number of Distinct Entities Used   Diversity-0.18542875 %93 %
15Variations in P Tags   Relevancy-0.185663368 %79 %
16Entities in H1 Tags-0.186256 %89 %
17Number of Backlinks   Authority-0.18203862748447 %72 %
18Variations in the Canonical URL   Relevancy-0.188254 %79 %
19Number of Referring Domains   Authority-0.182865833247 %72 %
20Number of Factors Used   Diversity-0.1727818595 %81 %
21Variations in H1-H6 Tags   Relevancy-0.1717765 %81 %
22Number of Do Follow Backlinks   Authority-0.17339517887442 %72 %
23Variations in H1, H2, and H3 Tags   Relevancy-0.1716765 %84 %
24Entities in Meta Description Tag   Relevancy-0.178357 %87 %
25Entities in the HTML Tag   Relevancy-0.1745014071 %88 %
26Entities in Sentences   Relevancy-0.1744513768 %89 %
27Variations in Div Tags   Relevancy-0.17222211875 %88 %
28Entities in H2 Tags-0.1728752 %88 %
29Variations in H2 Tags   Relevancy-0.1711349 %77 %
30Variations in Meta Description   Relevancy-0.163258 %82 %
31Variations in Search Result Display URL   Relevancy-0.163282 %83 %
32Variations in Search Result Link Text   Relevancy-0.163282 %83 %
33Leading Variations in H1-H6 Tags   Relevancy-0.166243 %83 %
34Variations in First 100 Words   Relevancy-0.1615772 %78 %
35Variations in ALT Attributes   Relevancy-0.1683746 %75 %
36Variations in Sentences   Relevancy-0.161973875 %83 %
37Variations in Body Tags   Relevancy-0.16436424178 %88 %
38Variations in H1 Tags   Relevancy-0.163155 %80 %
39Variations in Distinct A Tag HREF Attributes   Relevancy-0.161122763 %84 %
40Leading Variations in H1, H2, and H3 Tags   Relevancy-0.166241 %85 %
41Variations in HTML Tags   Relevancy-0.16436423978 %89 %
42Number of No Follow Backlinks   Authority-0.162619981836 %70 %
43Number of Facebook Pages   Authority-0.165256 %76 %
44Clean Text Kilobytes   Size-0.16531275 %80 %
45Variations in the Title Tag   Relevancy-0.163269 %81 %
46Variation Count in Top 30KB   Relevancy-0.161161968 %84 %
47Variations in LI Tags   Relevancy-0.168622466 %88 %
48Variations in A Tag HREF Attributes   Relevancy-0.161604063 %86 %
49Variations in Absolute URLs   Relevancy-0.162266066 %85 %
50Search Result Number of Dirs in Path   Other-0.163274 %76 %
51Term Frequency   Relevancy-0.164378 %85 %
52Entities in H3 Tags-0.1631743 %94 %
53Variations in A Tags   Relevancy-0.151432166 %86 %
54Number of P Tags   Size-0.151354172 %80 %
55Number of Images with ALT Text   Size-0.153052169 %81 %
56Word Count   Size-0.154962145085 %82 %
57Unabridged Word Count   Size-0.156243185884 %82 %
58Number of CSS Includes   Technology-0.15191074 %68 %
59Number of Images   Size-0.153123174 %82 %
60Clean Keyword Density in the HTML Tag   Relevancy-0.159473 %73 %
61Leading Variations in H1 Tags   Relevancy-0.151124 %77 %
62Variations in Script Tags   Relevancy-0.157876865 %81 %
63Number of Includes   Technology-0.15462781 %76 %
64Leading Variations in Title Tag   Relevancy-0.151128 %82 %
65Variation Density in Top 30KB   Relevancy-0.154264 %78 %
66Number of Links   Authority-0.1531412879 %76 %
67Number of HTTPS Links   Authority-0.1531412679 %76 %
68Number of DoFollow Links   Authority-0.1530212579 %77 %
69Number of Heading Tags   Size-0.15572274 %77 %
70Variations in Section Tags   Relevancy-0.15551838 %77 %
71Number of HTML Comments   Size-0.153985171 %84 %
72Number of H1 Tags   Size-0.153269 %82 %
73Number of Internal Links   Authority-0.1529811479 %77 %
74Variations in OpenGraph Description   Relevancy-0.143253 %79 %
75LSI Words in Title Tag   Relevancy-0.1414662 %92 %
76Variations in Span Tags   Relevancy-0.1429850 %80 %
77LSI Words in Sentences   Relevancy-0.14706573159 %90 %
78Search Result URL Length   Size-0.14796297 %64 %
79Exact Matches in the HTML Tag   Relevancy-0.1484724 %84 %
80Has Meta Charset   Technology-0.141172 %76 %
81Number of HTML Tags   Size-0.14227296685 %83 %
82Number Of JSON-LD Types   Relevancy-0.14501456 %82 %
83Number of Sentences   Size-0.1445813382 %79 %
84Is Home Page   Other-0.141119 %40 %
85Number of Images without ALT Text   Size-0.141481056 %79 %
86Percentage of DoFollow Links   Authority-0.14998480 %83 %
87TF/IDF   Relevancy-0.141163 %80 %
88LSI Words in H1 Tags   Relevancy-0.1418452 %89 %
89Variations making whole A Tags   Relevancy-0.143129 %78 %
90Percentage of DoFollow Internal Links   Authority-0.14897480 %81 %
91Number of H2 Tags   Size-0.1414767 %74 %
92Variations Making Whole Span Tags   Relevancy-0.143119 %71 %
93Variations in H3 Tags   Relevancy-0.147337 %84 %
94Variations in Footer Tags   Relevancy-0.145491140 %82 %
95Number of H3 Tags   Size-0.1425959 %79 %
96Has JSON-LD Schema Markup   Relevancy-0.141153 %76 %
97Variations in OpenGraph Title   Relevancy-0.143259 %79 %
98Leading Variations in H2 Tags   Relevancy-0.143121 %77 %
99Variations in Nav Tags   Relevancy-0.143132347 %87 %
100Title Tag Has Entities   Relevancy-0.131167 %86 %
101Has Entities in H1 Tags   Relevancy-0.131154 %83 %
102Number of US Phone Numbers   Trust-0.138231549 %77 %
103Has Meta Description   Relevancy-0.131168 %73 %
104Uses Schema aggregaterating   Other-0.131111 %57 %
105Number of Facebook Accounts   Authority-0.132128 %74 %
106Average Words Per Sentence   Size-0.131552878 %83 %
107Variations in TITLE Attributes   Relevancy-0.1325540 %76 %
108Exact Matches in Sentences   Relevancy-0.1316216 %80 %
109Number of Questions In Headings   Size-0.137239 %77 %
110Has Form   Technology-0.131149 %72 %
111Number of DoFollow External Links   Authority-0.13301275 %74 %
112Flesch Kincaid Reading Grade Level   Other-0.136293 %83 %
113Has US Phone Number   Trust-0.131150 %65 %
114Has Canonical URL   Authority-0.131173 %74 %
115Variations in Strong Tags   Relevancy-0.137229 %75 %
116Variations making whole H1-H6 Tags   Relevancy-0.131115 %76 %
117LSI Words in Meta Description Tag   Relevancy-0.13201050 %84 %
118Number of External Links   Authority-0.13371476 %77 %
119Exact Matches in H1-H6 Tags   Relevancy-0.137114 %80 %
120Inline CSS Kilobytes   Size-0.132456768 %80 %
121Has Meta Viewport   Technology-0.131182 %73 %
122Number of JavaScript Includes   Technology-0.13321882 %75 %
123Meta Description Length   Size-0.1333912369 %73 %
124Number of Forms   Technology-0.136248 %75 %
125Has Contact Page   Trust-0.131163 %69 %
126Number of LinkedIn Pages   Authority-0.135132 %75 %
127Number of Questions   Size-0.13681269 %75 %
128Number of Email Addresses   Trust-0.1398442 %74 %
129Variations Making Whole LI Tags   Relevancy-0.133125 %75 %
130Variations making whole H1, H2, and H3 Tags   Relevancy-0.131113 %75 %
131Variations in Main Tags   Relevancy-0.135105937 %83 %
132Search Result Domain Length   Size-0.13241785 %75 %
133Search Result Host Length   Size-0.13241785 %75 %
134Exact Matches in Title Tag   Relevancy-0.131113 %73 %
135Number of Instagram Pages   Authority-0.1319243 %69 %
136Leading Variations in H3 Tags   Relevancy-0.134116 %76 %
137Uses JSON-LD AggregateRating   Other-0.13119 %60 %
138Number of Questions In H2 Tags   Size-0.134125 %76 %
139Search Result Summary Length   Size-0.1316015494 %68 %
140Uses Schema product   Other-0.13117 %49 %
141Word Count in Meta Description   Size-0.12552069 %78 %
142Uses Schema bestrating   Other-0.12118 %43 %
143Number of Social Pages   Authority-0.1223562 %75 %
144Number of Prices   Size-0.124227070 %77 %
145Is Article Page   Other-0.121146 %66 %
146Exact Matches in Top 30KB   Relevancy-0.1211114 %76 %
147Is OpenGraph Type Article   Technology-0.121137 %62 %
148Variations in the last 100 words   Relevancy-0.1211455 %79 %
149Search Result Uses HTTPS   Other-0.121183 %75 %
150Percentage of DoFollow External Links   Authority-0.12241173 %68 %
151Has HREF Lang   Technology-0.121110 %65 %
152Uses Microdata FAQPage   Other-0.12113 %22 %
153Search Result Not .com .net or .org   Other-0.121192 %23 %
154Uses JSON-LD Review   Other-0.12115 %43 %
155Number of Questions In H3 Tags   Size-0.123117 %76 %
156Variations in Style Tags   Relevancy-0.12514812 %78 %
157Uses Schema ratingvalue   Other-0.121112 %54 %
158Has Privacy Policy   Trust-0.121156 %72 %
159Uses Schema review   Other-0.12116 %42 %
160Uses Schema localbusiness   Other-0.121111 %51 %
161Uses JSON-LD bestRating   Other-0.12118 %43 %
162LSI Words in H2 Tags   Relevancy-0.12631950 %86 %
163Exact Matches in H1 Tags   Relevancy-0.12119 %77 %
164Number of Social Accounts   Authority-0.124243 %79 %
165Headings Has Question   Other-0.121138 %70 %
166Number of Meta Generator Tags   Technology-0.122140 %58 %
167Uses JSON-LD name   Other-0.121155 %73 %
168Number of H4 Tags   Size-0.1216436 %76 %
169Has OpenGraph Type   Relevancy-0.121163 %69 %
170Variations in I Tags   Relevancy-0.1212425 %73 %
171Uses JSON-LD Product-0.12116 %51 %
172Has Email   Trust-0.121141 %64 %
173Uses Schema worstrating   Other-0.12116 %40 %
174Variations making whole H1 Tags   Relevancy-0.12116 %80 %
175Uses JSON-LD worstRating   Other-0.12115 %38 %
176Uses Schema image   Other-0.121122 %63 %
177Has FavIcon   Technology-0.121177 %72 %
178Number of Absolute URLs   Authority-0.1257928083 %80 %
179Entities in H4 Tags-0.128219 %85 %
180Uses JSON-LD image   Other-0.121118 %65 %
181Has Meta Twitter Card   Authority-0.121155 %62 %
182Inline JavaScript Kilobytes   Size-0.1242111480 %68 %
183Variations in ID Attributes   Relevancy-0.127212 %79 %
184Variations in Class Attributes   Relevancy-0.1213141216 %75 %
185Uses JSON-LD BreadcrumbList   Other-0.121134 %67 %
186Uses JSON-LD category   Other-0.12112 %23 %
187Uses JSON-LD url   Other-0.121146 %71 %
188Has Entities in H2 Tags   Relevancy-0.121153 %82 %
189Uses Schema category   Other-0.12112 %23 %
190Uses JSON-LD description   Other-0.121144 %69 %
191Number of Nofollow Links   Authority-0.1213424 %74 %
192Variations in Aside Tags   Relevancy-0.1233410 %72 %
193Has Terms of Service   Trust-0.121137 %63 %
194Variations in Meta Twitter Description   Relevancy-0.122126 %64 %
195Has Entities in H3 Tags   Relevancy-0.121143 %83 %
196Page Size Kilobytes   Size-0.1297431584 %72 %
197Uses Schema rating   Other-0.12117 %40 %
198Uses Schema howto   Other-0.12113 %17 %
199Uses JSON-LD ratingValue   Other-0.121111 %57 %
200Uses Microdata Brand   Other-0.12112 %12 %