Measures 149684 SEO Factors

147962 Built-In SEO Factors

138787 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-0.23115 %67 %
2Search Result Domain is .com   Other-0.22115 %66 %
3Number of Top 50 Shared Factors Used   Diversity-0.21161293 %89 %
4Load Time Milliseconds   Performance-0.27535153282 %87 %
5Number of Unique LSI Words Used   Diversity-0.2127332081 %75 %
6Variations in Search Result Document File Name   Relevancy-0.235243 %79 %
7Number of Unique Variations Used   Diversity-0.249779 %85 %
8Number of Top 100 Shared Factors Used   Diversity-0.19392993 %90 %
9Number of Top 200 Shared Factors Used   Diversity-0.19513893 %91 %
10Entities in Title Tag   Relevancy-0.197360 %95 %
11Variations in Search Result URL Path   Relevancy-0.1853246 %80 %
12Number of Factors Used   Diversity-0.1858218594 %84 %
13Variations in Search Result URL   Relevancy-0.18151255 %78 %
14Number of Backlinks   Authority-0.18203862748447 %47 %
15Number of Referring Domains   Authority-0.182865833247 %47 %
16Variations in P Tags   Relevancy-0.185662966 %85 %
17Variations in H1 and H2 Tags   Relevancy-0.1812460 %83 %
18Variations in H1, H2, and H3 Tags   Relevancy-0.1716662 %85 %
19Variations in H1-H6 Tags   Relevancy-0.1717763 %84 %
20Number of Do Follow Backlinks   Authority-0.17339517887442 %46 %
21Variations in Search Result Link Text   Relevancy-0.173279 %83 %
22Variations in Div Tags   Relevancy-0.17222210672 %88 %
23Variations in Search Result Display URL   Relevancy-0.1753279 %84 %
24Entities in H1 Tags-0.176249 %90 %
25Variations in the Canonical URL   Relevancy-0.17499550 %81 %
26Number of Distinct Entities Used   Diversity-0.17612669 %93 %
27Variations in H1 Tags   Relevancy-0.173153 %82 %
28Variations in Body Tags   Relevancy-0.17436421776 %87 %
29Variations in HTML Tags   Relevancy-0.17436421676 %88 %
30Variations in Sentences   Relevancy-0.174313672 %83 %
31Variations in the Title Tag   Relevancy-0.163266 %81 %
32Variation Count in Top 30KB   Relevancy-0.164917453665 %85 %
33Variations in H2 Tags   Relevancy-0.1611347 %80 %
34Leading Variations in H1-H6 Tags   Relevancy-0.169243 %84 %
35Term Frequency   Relevancy-0.164376 %85 %
36Variations in Meta Description   Relevancy-0.163255 %82 %
37Leading Variations in H1, H2, and H3 Tags   Relevancy-0.168240 %84 %
38Variations in First 100 Words   Relevancy-0.1614332268 %81 %
39Leading Variations in H1 Tags   Relevancy-0.162125 %80 %
40Search Result Number of Dirs in Path   Other-0.163270 %76 %
41Number of No Follow Backlinks   Authority-0.162619981836 %45 %
42Variations in Absolute URLs   Relevancy-0.16134890144063 %85 %
43Entities in the HTML Tag   Relevancy-0.1655712364 %90 %
44Variations in A Tags   Relevancy-0.162602064 %83 %
45Entities in Meta Description Tag   Relevancy-0.168351 %88 %
46Variations in Distinct A Tag HREF Attributes   Relevancy-0.161122360 %85 %
47Entities in Sentences   Relevancy-0.1655512061 %91 %
48Variations in LI Tags   Relevancy-0.168622064 %88 %
49Variations in A Tag HREF Attributes   Relevancy-0.161603560 %86 %
50Clean Text Kilobytes   Size-0.16531272 %82 %
51Entities in H2 Tags-0.1534647 %89 %
52Leading Variations in Title Tag   Relevancy-0.151129 %82 %
53Variations in Script Tags   Relevancy-0.157876463 %82 %
54Number of Facebook Pages   Authority-0.155253 %79 %
55Clean Keyword Density in the HTML Tag   Relevancy-0.1510370 %75 %
56Variations in ALT Attributes   Relevancy-0.1583645 %79 %
57Number of Images   Size-0.153683473 %84 %
58Number of Images with ALT Text   Size-0.153622567 %84 %
59Number of H1 Tags   Size-0.153267 %83 %
60Number of Includes   Technology-0.15462679 %77 %
61Number of P Tags   Size-0.151353971 %83 %
62Unabridged Word Count   Size-0.156243177481 %84 %
63Word Count   Size-0.154962139282 %84 %
64Percentage of DoFollow Links   Authority-0.15998378 %85 %
65Number Of JSON-LD Types   Relevancy-0.15501454 %81 %
66Number of CSS Includes   Technology-0.15191072 %72 %
67Has JSON-LD Schema Markup   Relevancy-0.151152 %77 %
68LSI Words in Title Tag   Relevancy-0.1514560 %91 %
69Variations in OpenGraph Description   Relevancy-0.153250 %81 %
70Number of Heading Tags   Size-0.15572172 %78 %
71TF/IDF   Relevancy-0.151160 %79 %
72Variation Density in Top 30KB   Relevancy-0.1526243362 %78 %
73Number of DoFollow Links   Authority-0.1439412577 %80 %
74Percentage of DoFollow Internal Links   Authority-0.14937378 %81 %
75Exact Matches in the HTML Tag   Relevancy-0.143651328 %82 %
76Number of HTTPS Links   Authority-0.1440012777 %79 %
77Number of Internal Links   Authority-0.1438411576 %80 %
78Has Meta Charset   Technology-0.141171 %78 %
79Number of HTML Tags   Size-0.14241694683 %84 %
80Variations in Section Tags   Relevancy-0.14551637 %79 %
81Number of HTML Comments   Size-0.143984568 %85 %
82Number of Images without ALT Text   Size-0.141481155 %82 %
83LSI Words in Sentences   Relevancy-0.14706568158 %91 %
84Number of Links   Authority-0.1439612477 %79 %
85Variations in OpenGraph Title   Relevancy-0.143156 %79 %
86Leading Variations in H2 Tags   Relevancy-0.144122 %76 %
87Number of DoFollow External Links   Authority-0.14401271 %77 %
88Average Words Per Sentence   Size-0.141552975 %82 %
89Flesch Kincaid Reading Grade Level   Other-0.146291 %83 %
90Variations in Span Tags   Relevancy-0.1479848 %81 %
91Number of H2 Tags   Size-0.1431865 %77 %
92LSI Words in H1 Tags   Relevancy-0.1418451 %89 %
93Entities in H3 Tags-0.1431639 %93 %
94Number of Email Addresses   Trust-0.1498440 %76 %
95Variations in Main Tags   Relevancy-0.145105737 %83 %
96Variations making whole A Tags   Relevancy-0.146128 %76 %
97Number of LinkedIn Pages   Authority-0.146129 %74 %
98Percentage of DoFollow External Links   Authority-0.14271169 %73 %
99Number of External Links   Authority-0.14411472 %77 %
100Variations in Nav Tags   Relevancy-0.143132146 %87 %
101Search Result URL Length   Size-0.14815994 %65 %
102Variations in H3 Tags   Relevancy-0.148335 %81 %
103Search Result Uses HTTPS   Other-0.131181 %75 %
104Number of Facebook Accounts   Authority-0.132126 %75 %
105Inline CSS Kilobytes   Size-0.132456465 %82 %
106Number of Sentences   Size-0.1345813080 %81 %
107Has Email   Trust-0.131141 %68 %
108Search Result Domain Length   Size-0.13241782 %76 %
109Number of H3 Tags   Size-0.1325958 %81 %
110Has Canonical URL   Authority-0.131170 %73 %
111Number of Instagram Pages   Authority-0.1319241 %72 %
112Search Result Host Length   Size-0.13241783 %76 %
113Exact Matches in H1-H6 Tags   Relevancy-0.137116 %81 %
114Has Form   Technology-0.131147 %74 %
115Has Entities in H1 Tags   Relevancy-0.131149 %84 %
116Uses JSON-LD name   Other-0.131153 %74 %
117Variations in Footer Tags   Relevancy-0.13549938 %79 %
118LSI Words in Meta Description Tag   Relevancy-0.13211050 %88 %
119Number of Forms   Technology-0.137247 %78 %
120Number of US Phone Numbers   Trust-0.138231341 %79 %
121Variations making whole H1-H6 Tags   Relevancy-0.132115 %76 %
122Uses Schema aggregaterating   Other-0.131111 %59 %
123Variations Making Whole Span Tags   Relevancy-0.1315118 %73 %
124Has Meta Viewport   Technology-0.131180 %75 %
125Variations in Strong Tags   Relevancy-0.1312227 %75 %
126Exact Matches in Sentences   Relevancy-0.1338219 %81 %
127Has Meta Description   Relevancy-0.131166 %74 %
128Number of JavaScript Includes   Technology-0.13321779 %76 %
129Number of Social Pages   Authority-0.1323558 %75 %
130Variations making whole H1, H2, and H3 Tags   Relevancy-0.132113 %76 %
131Number of Questions In Headings   Size-0.137237 %77 %
132Variations in the last 100 words   Relevancy-0.1314482051 %78 %
133Title Tag Has Entities   Relevancy-0.131160 %86 %
134Uses JSON-LD url   Other-0.131145 %72 %
135Number of Social Accounts   Authority-0.1313239 %78 %
136Meta Description Length   Size-0.1233911866 %78 %
137Has FavIcon   Technology-0.121175 %71 %
138Is Home Page   Other-0.121119 %45 %
139Number of Absolute URLs   Authority-0.1281828580 %81 %
140LSI Words in H2 Tags   Relevancy-0.12982049 %87 %
141Uses Schema name   Other-0.121159 %68 %
142Variations in TITLE Attributes   Relevancy-0.1225538 %76 %
143Has Contact Page   Trust-0.121157 %71 %
144Is Article Page   Other-0.121143 %68 %
145Uses Schema bestrating   Other-0.12117 %49 %
146Variations in I Tags   Relevancy-0.1212323 %74 %
147Uses JSON-LD BreadcrumbList   Other-0.121134 %68 %
148Uses JSON-LD image   Other-0.121117 %67 %
149Number of Prices   Size-0.124227367 %81 %
150Uses Schema operatingsystem   Other-0.12114 %15 %
151Page Size Kilobytes   Size-0.1297431581 %71 %
152Uses Schema image   Other-0.121121 %67 %
153Uses Schema url   Other-0.121155 %65 %
154Uses Schema worstrating   Other-0.12115 %46 %
155Exact Matches in Title Tag   Relevancy-0.122114 %76 %
156Exact Matches in Top 30KB   Relevancy-0.1221216 %78 %
157Uses JSON-LD AggregateRating   Other-0.12119 %62 %
158Uses Schema product   Other-0.12117 %49 %
159Word Count in Meta Description   Size-0.12551966 %79 %
160Number Of Claimed Brands   Other-0.1214223 %76 %
161Is OpenGraph Type Article   Technology-0.121133 %62 %
162Has Meta Twitter Card   Authority-0.121153 %62 %
163Has Schema Markup   Relevancy-0.121162 %71 %
164Leading Variations in H3 Tags   Relevancy-0.126115 %75 %
165Has US Phone Number   Trust-0.121141 %69 %
166Variations Making Whole LI Tags   Relevancy-0.128124 %75 %
167Number of Questions   Size-0.12681267 %77 %
168Has OpenGraph Type   Relevancy-0.121161 %68 %
169Uses JSON-LD ListItem   Other-0.121134 %69 %
170Title Length   Size-0.12885281 %80 %
171Uses JSON-LD item   Other-0.121123 %66 %
172Uses Schema ratingvalue   Other-0.121111 %56 %
173Uses Schema applicationcategory   Other-0.12114 %15 %
174Search Result Summary Length   Size-0.1219415393 %69 %
175Title Word Count   Size-0.1212881 %79 %
176Has HREF Lang   Technology-0.121111 %65 %
177Variations in Meta Twitter Content   Relevancy-0.121125 %66 %
178Number of H4 Tags   Size-0.1216334 %76 %
179Uses JSON-LD description   Other-0.121141 %71 %
180Inline JavaScript Kilobytes   Size-0.1242911877 %68 %
181Variations in Meta Twitter Description   Relevancy-0.122123 %68 %
182Number of Meta Generator Tags   Technology-0.122136 %60 %
183Uses Microdata price   Other-0.12112 %17 %
184Uses Schema pricecurrency   Other-0.12115 %49 %
185Uses Microdata contentUrl-0.12112 %25 %
186Uses JSON-LD bestRating   Other-0.12117 %48 %
187Uses JSON-LD worstRating   Other-0.12115 %43 %
188Variations making whole H1 Tags   Relevancy-0.12117 %79 %
189Headings Has Question   Other-0.121136 %70 %
190Uses JSON-LD HomeAndConstructionBusiness   Other-0.12113 %19 %
191Uses JSON-LD Product   Other-0.12116 %51 %
192Uses Schema localbusiness   Other-0.121110 %52 %
193Uses Schema organization   Other-0.121133 %69 %
194Uses Schema review   Other-0.12116 %44 %
195Uses JSON-LD Review   Other-0.12115 %45 %
196Uses JSON-LD operatingSystem   Other-0.12114 %15 %
197Variations in Button Tags   Relevancy-0.124528 %75 %
198Uses JSON-LD Organization   Other-0.121130 %70 %
199Uses Schema comment   Other-0.12112 %16 %
200Uses JSON-LD addressRegion   Other-0.121118 %59 %