Measures 139938 SEO Factors

138216 Built-In SEO Factors

129369 On-page SEO Factors

8847 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

SEO Factor Class

Size SEO Factors ( 54062 )
Relevancy SEO Factors ( 53400 )
Other SEO Factors ( 27616 )
Local SEO Factors ( 8675 )
Technology SEO Factors ( 1599 )
Authority SEO Factors ( 163 )
Pay Per Click SEO Factors ( 29 )
Trust SEO Factors ( 15 )
Diversity SEO Factors ( 15 )
Easy SEO Factors ( 3 )
Performance SEO Factors ( 1 )

SEO Factor Type

Size SEO Factors ( 54058 )
Keywords SEO Factors ( 41348 )
Schema SEO Factors ( 27562 )
Local SEO Factors ( 8676 )
LSI SEO Factors ( 8486 )
Entities SEO Factors ( 3544 )
Other SEO Factors ( 1705 )
Backlinks SEO Factors ( 72 )
Social SEO Factors ( 58 )
Page Links SEO Factors ( 29 )
Structure SEO Factors ( 23 )
Meta SEO Factors ( 14 )
On Page SEO Factors ( 3 )
These counts reflect SEO factors with generated docs.
Not all SEO factors have that yet.

Compare Top SEO Factors By Month


Compare Months Before and After Helpful Content Update ( note the factors that exited at the bottom )
Data Documentation - As seen on Digitaleer.com

TOP SEO Factors for 2025-04     previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Unique Variations Used   Diversity-0.2318779 %86 %
2Search Result Domain is .com, .net, or .org   Other-0.23115 %86 %
3Search Result Domain is .com   Other-0.23114 %86 %
4Number of Unique LSI Words Used   Diversity-0.2279531081 %83 %
5Number of Distinct Entities Used   Diversity-0.21492974 %98 %
6Entities in Title Tag   Relevancy-0.217367 %92 %
7Number of Top 200 Shared Factors Used   Diversity-0.21514092 %88 %
8Variations in H1 and H2 Tags   Relevancy-0.212463 %75 %
9Entities in the HTML Tag   Relevancy-0.269917370 %89 %
10Load Time Milliseconds   Performance-0.211399176082 %88 %
11Number of Top 100 Shared Factors Used   Diversity-0.2383093 %89 %
12Entities in Sentences   Relevancy-0.269817069 %89 %
13Number of Factors Used   Diversity-0.224918093 %83 %
14Variations in Search Result Display URL   Relevancy-0.22272 %73 %
15Variations in Search Result Link Text   Relevancy-0.22272 %73 %
16Variations in H1, H2, and H3 Tags   Relevancy-0.222768 %80 %
17Variations in A Tags   Relevancy-0.19972269 %91 %
18Variations in H1-H6 Tags   Relevancy-0.1924867 %81 %
19Variations in P Tags   Relevancy-0.191833168 %83 %
20Number of Top 50 Shared Factors Used   Diversity-0.19161391 %88 %
21Variations in Sentences   Relevancy-0.192994473 %86 %
22Variations in Div Tags   Relevancy-0.1934310475 %91 %
23Leading Variations in H1-H6 Tags   Relevancy-0.196245 %81 %
24LSI Words in Title Tag   Relevancy-0.1814663 %84 %
25Variations in First 100 Words   Relevancy-0.1816663 %75 %
26Clean Keyword Density in the HTML Tag   Relevancy-0.186368 %81 %
27Variations in the Title Tag   Relevancy-0.182264 %78 %
28Variations in H1 Tags   Relevancy-0.182156 %66 %
29Variations in LI Tags   Relevancy-0.18671969 %94 %
30Leading Variations in H1, H2, and H3 Tags   Relevancy-0.186243 %84 %
31Variations in Search Result Document File Name   Relevancy-0.183145 %70 %
32Term Frequency   Relevancy-0.184376 %91 %
33Variations in Body Tags   Relevancy-0.18110021779 %98 %
34LSI Words in Sentences   Relevancy-0.17454282467 %88 %
35Variations in HTML Tags   Relevancy-0.17110021478 %98 %
36Variation Density in Top 30KB   Relevancy-0.175260 %64 %
37Variations in H2 Tags   Relevancy-0.1711448 %75 %
38Variations in OpenGraph Title   Relevancy-0.172153 %75 %
39Leading Variations in Title Tag   Relevancy-0.171130 %77 %
40Entities in H2 Tags-0.1733856 %95 %
41Variations in OpenGraph Description   Relevancy-0.1710248 %69 %
42Entities in H1 Tags-0.176258 %91 %
43Word Count   Size-0.177782172883 %77 %
44Variations in the Canonical URL   Relevancy-0.174249 %70 %
45Variations in Search Result URL Path   Relevancy-0.173147 %73 %
46Number of Images   Size-0.17652779 %88 %
47Entities in H3 Tags-0.1724848 %92 %
48Number of H2 Tags   Size-0.1719873 %66 %
49Variations in Search Result URL   Relevancy-0.173151 %73 %
50Number of Heading Tags   Size-0.16462280 %73 %
51Number Of JSON-LD Types   Relevancy-0.16521459 %73 %
52Unabridged Word Count   Size-0.169363214881 %80 %
53Clean Text Kilobytes   Size-0.16681580 %78 %
54Variation Count in Top 30KB   Relevancy-0.16522065 %69 %
55Number of HTML Tags   Size-0.162396102683 %89 %
56Variations in Span Tags   Relevancy-0.16271053 %84 %
57Number of Includes   Technology-0.16492680 %84 %
58Variations in Meta Description   Relevancy-0.163253 %77 %
59Variations in Script Tags   Relevancy-0.166347163 %94 %
60Variations in ALT Attributes   Relevancy-0.1638644 %84 %
61TF/IDF   Relevancy-0.161156 %80 %
62Number of Images with ALT Text   Size-0.16531875 %86 %
63Variations in Nav Tags   Relevancy-0.16772248 %83 %
64Number of Sentences   Size-0.1661314681 %84 %
65Number of Questions   Size-0.16421367 %81 %
66Entities in Meta Description Tag   Relevancy-0.167355 %88 %
67Uses JSON-LD Person   Other-0.161118 %53 %
68Variations in A Tag HREF Attributes   Relevancy-0.161413662 %94 %
69Number of Internal Links   Authority-0.1633513980 %80 %
70Uses Schema specialty   Other-0.16111 %20 %
71Number of Absolute URLs   Authority-0.1644224883 %78 %
72Number of HTTPS Links   Authority-0.1634315282 %81 %
73Has JSON-LD Schema Markup   Relevancy-0.161156 %66 %
74Uses Schema faqpage   Other-0.16118 %61 %
75Number of DoFollow Links   Authority-0.1633714982 %80 %
76Page Size Kilobytes   Size-0.1656825081 %86 %
77Uses Schema price   Other-0.16115 %34 %
78Uses Schema person   Other-0.151120 %53 %
79Uses Schema question   Other-0.15119 %59 %
80Variations in Distinct A Tag HREF Attributes   Relevancy-0.15932462 %92 %
81Number of P Tags   Size-0.151994477 %80 %
82Inline CSS Kilobytes   Size-0.151356466 %86 %
83LSI Words in H1 Tags   Relevancy-0.1513557 %80 %
84Search Result Domain Length   Size-0.15221882 %64 %
85Search Result Host Length   Size-0.15221882 %64 %
86Has Privacy Policy   Trust-0.151163 %69 %
87Leading Variations in H1 Tags   Relevancy-0.151127 %78 %
88Variations in Absolute URLs   Relevancy-0.151664862 %89 %
89Variations in TITLE Attributes   Relevancy-0.1530533 %80 %
90Uses JSON-LD headline   Other-0.151118 %44 %
91Uses Schema answer   Other-0.15119 %61 %
92Leading Variations in H2 Tags   Relevancy-0.153122 %80 %
93Uses JSON-LD price   Other-0.15115 %36 %
94Number of CSS Includes   Technology-0.15231072 %75 %
95Number of US Phone Numbers   Trust-0.151301449 %80 %
96Uses Schema headline   Other-0.151120 %44 %
97Uses Schema pricecurrency   Other-0.15116 %45 %
98Number of Links   Authority-0.1534415282 %84 %
99Number of Instagram Pages   Authority-0.156243 %67 %
100Uses Schema aggregaterating   Other-0.151110 %58 %
101Number of DoFollow External Links   Authority-0.15281478 %83 %
102Number of External Links   Authority-0.15301679 %84 %
103Search Result Number of Dirs in Path   Other-0.153272 %83 %
104Uses JSON-LD NewsMediaOrganization   Other-0.15111 %16 %
105Uses Schema newsmediaorganization   Other-0.15111 %16 %
106Variations in Footer Tags   Relevancy-0.1527636 %75 %
107Uses JSON-LD dateCreated   Other-0.15113 %28 %
108Variations in H3 Tags   Relevancy-0.1510338 %84 %
109Uses JSON-LD GeoCircle   Other-0.15113 %23 %
110Uses Schema geocircle   Other-0.15113 %23 %
111Number of Prices   Size-0.152736570 %84 %
112LSI Words in H2 Tags   Relevancy-0.151002358 %92 %
113Uses JSON-LD priceCurrency   Other-0.15116 %47 %
114Search Result Summary Has Ellipsis   Other-0.151147 %13 %
115Uses Schema ratingvalue   Other-0.141111 %56 %
116Uses Schema offer   Other-0.14117 %50 %
117Title Tag Has Entities   Relevancy-0.141163 %77 %
118Percentage of DoFollow Links   Authority-0.14978478 %77 %
119Variations Making Whole Span Tags   Relevancy-0.143118 %73 %
120Number of Nofollow Links   Authority-0.1412428 %75 %
121Number of Facebook Pages   Authority-0.144263 %75 %
122Number of H3 Tags   Size-0.1421966 %75 %
123Uses Schema availability   Other-0.14116 %34 %
124Uses JSON-LD FAQPage   Other-0.14118 %61 %
125Inline JavaScript Kilobytes   Size-0.142346781 %84 %
126Variations Making Whole LI Tags   Relevancy-0.144124 %73 %
127Uses Schema datecreated   Other-0.14113 %28 %
128Uses JSON-LD availability   Other-0.14116 %31 %
129Variations making whole A Tags   Relevancy-0.145230 %84 %
130Uses Schema text   Other-0.141113 %55 %
131Uses JSON-LD slogan   Other-0.14113 %31 %
132Uses JSON-LD text   Other-0.14119 %64 %
133Uses Microdata keywords   Other-0.14111 %13 %
134Uses JSON-LD Article   Other-0.141111 %48 %
135Uses Schema article   Other-0.141113 %50 %
136Number of JavaScript Includes   Technology-0.14341779 %78 %
137Search Result Summary Has Year   Other-0.141124 %44 %
138Uses JSON-LD Offer   Other-0.14116 %53 %
139Has Entities in H1 Tags   Relevancy-0.141156 %81 %
140Percentage of DoFollow Internal Links   Authority-0.14877378 %80 %
141Uses JSON-LD ratingValue   Other-0.14119 %58 %
142Has US Phone Number   Trust-0.141148 %64 %
143Uses JSON-LD Answer   Other-0.14118 %63 %
144Uses Schema servicetype   Other-0.14113 %28 %
145Variations in the last 100 words   Relevancy-0.1410345 %72 %
146Bytes To First P Tag   Size-0.14873016693892 %61 %
147Variations in Article Tags   Relevancy-0.14451122 %61 %
148Search Result URL Length   Size-0.13916592 %61 %
149Variations in Search Result Summary   Relevancy-0.134277 %69 %
150Leading Variations in H3 Tags   Relevancy-0.133117 %75 %
151Has Form   Technology-0.131154 %64 %
152Variations making whole H1-H6 Tags   Relevancy-0.133114 %75 %
153Number Of Claimed Brands   Other-0.13125824 %64 %
154Uses JSON-LD Question   Other-0.13118 %64 %
155Title Word Count   Size-0.1311880 %69 %
156Number of H1 Tags   Size-0.132275 %73 %
157LSI Words in Meta Description Tag   Relevancy-0.13341052 %84 %
158Number of LinkedIn Pages   Authority-0.132129 %70 %
159Variations in Aside Tags   Relevancy-0.1339511 %66 %
160Uses Schema slogan   Other-0.13113 %31 %
161Flesch Kincaid Reading Grade Level   Other-0.135292 %75 %
162Variations making whole H1, H2, and H3 Tags   Relevancy-0.133113 %81 %
163Uses JSON-LD serviceType   Other-0.13113 %30 %
164Exact Matches in the HTML Tag   Relevancy-0.132902129 %83 %
165Uses JSON-LD Organization   Other-0.131132 %61 %
166Uses Schema datemodified   Other-0.131133 %42 %
167Uses JSON-LD AggregateRating   Other-0.13119 %66 %
168Uses JSON-LD NewsArticle   Other-0.13113 %27 %
169Uses Microdata reviewRating   Other-0.13112 %25 %
170Uses Schema reviewrating   Other-0.13112 %25 %
171Number of Videos   Technology-0.13218 %75 %
172Variations in Main Tags   Relevancy-0.134605738 %80 %
173Number of Social Accounts   Authority-0.1315247 %77 %
174LSI Words in H3 Tags   Relevancy-0.13912452 %86 %
175Uses Schema listitem   Other-0.131140 %67 %
176Is Home Page   Other-0.131112 %30 %
177Uses Microdata inLanguage   Other-0.13111 %14 %
178Has Google Verify   Technology-0.131122 %64 %
179Uses JSON-LD givenName   Other-0.13113 %14 %
180Uses Schema givenname   Other-0.13113 %14 %
181Uses JSON-LD image   Other-0.131116 %61 %
182Uses Microdata Rating   Other-0.13112 %27 %
183Has Meta Twitter Card   Authority-0.131153 %58 %
184Search Result Uses HTTPS   Other-0.131183 %70 %
185Number of Twitter Accounts   Authority-0.133130 %75 %
186Is OpenGraph Type Article   Technology-0.131135 %56 %
187Uses Schema primaryimageofpage   Other-0.13111 %14 %
188Number of Questions In H3 Tags   Size-0.134223 %70 %
189Uses JSON-LD dateModified   Other-0.131133 %47 %
190Has Meta Viewport   Technology-0.131179 %72 %
191Number of NoFollow External Links   Authority-0.1310221 %73 %
192Variations in Section Tags   Relevancy-0.13451940 %80 %
193Has Entities in H2 Tags   Relevancy-0.131153 %80 %
194Number of YouTube Accounts   Technology-0.131110 %64 %
195Number of Forms   Technology-0.1313357 %73 %
196Uses Microdata dateCreated   Other-0.13112 %16 %
197Uses Schema reviewcount   Other-0.13116 %56 %
198Number of Facebook Accounts   Authority-0.132132 %72 %
199Uses JSON-LD reviewCount   Other-0.12116 %53 %
200Uses Schema itemcondition   Other-0.12115 %22 %