Measures 132526 SEO Factors

130804 Built-In SEO Factors

122638 On-page SEO Factors

8166 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 ( 53559 )
Relevancy SEO Factors ( 52554 )
Other SEO Factors ( 23645 )
Local SEO Factors ( 8000 )
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 ( 53555 )
Keywords SEO Factors ( 40669 )
Schema SEO Factors ( 23591 )
LSI SEO Factors ( 8388 )
Local SEO Factors ( 8001 )
Entities SEO Factors ( 3475 )
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 2024-09     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-0.26115 %76 %
2Search Result Domain is .com   Other-0.25115 %76 %
3Number of Unique LSI Words Used   Diversity-0.2494626286 %69 %
4Number of Distinct Entities Used   Diversity-0.24882978 %92 %
5Number of Unique Variations Used   Diversity-0.2432983 %87 %
6Load Time Milliseconds   Performance-0.2213713157987 %89 %
7Variations in Body Tags   Relevancy-0.217005541983 %92 %
8Variations in HTML Tags   Relevancy-0.217005541983 %92 %
9Number of Top 200 Shared Factors Used   Diversity-0.21534197 %90 %
10Number of Top 100 Shared Factors Used   Diversity-0.21403197 %90 %
11Variations in Search Result Display URL   Relevancy-0.213286 %75 %
12Entities in the HTML Tag   Relevancy-0.2165213373 %94 %
13Variations in Div Tags   Relevancy-0.211937018180 %89 %
14Entities in Sentences   Relevancy-0.2162113071 %94 %
15Variations in Search Result Link Text   Relevancy-0.213286 %73 %
16Entities in Title Tag   Relevancy-0.219369 %89 %
17Variations in H1, H2, and H3 Tags   Relevancy-0.2171872 %88 %
18Variations in H1-H6 Tags   Relevancy-0.2206973 %89 %
19Variations in Search Result Document File Name   Relevancy-0.27255 %80 %
20Variations in Sentences   Relevancy-0.248375178 %89 %
21Number of Referring Domains   Authority-0.2112077950 %71 %
22Number of Factors Used   Diversity-0.240518996 %85 %
23Number of Top 50 Shared Factors Used   Diversity-0.2161396 %88 %
24Leading Variations in H1, H2, and H3 Tags   Relevancy-0.218250 %83 %
25Variations in H1 and H2 Tags   Relevancy-0.281570 %88 %
26Variations in P Tags   Relevancy-0.1933814373 %89 %
27Leading Variations in H1-H6 Tags   Relevancy-0.1922252 %84 %
28Number of Backlinks   Authority-0.193005253659150 %72 %
29Variations in A Tags   Relevancy-0.1927213373 %87 %
30Entities in H2 Tags-0.1931753 %90 %
31Variations in Search Result URL Path   Relevancy-0.199258 %79 %
32Variations in Search Result URL   Relevancy-0.1917268 %77 %
33Variations in LI Tags   Relevancy-0.1915612872 %88 %
34Variations in Distinct A Tag HREF Attributes   Relevancy-0.1911714069 %88 %
35Number of Do Follow Backlinks   Authority-0.19120756288543 %70 %
36Entities in H1 Tags-0.1929257 %85 %
37Variations in A Tag HREF Attributes   Relevancy-0.1920096169 %88 %
38Term Frequency   Relevancy-0.196383 %87 %
39Variations in H2 Tags   Relevancy-0.1871452 %85 %
40Variations in the Canonical URL   Relevancy-0.188258 %80 %
41Number of No Follow Backlinks   Authority-0.182963884361042 %72 %
42Variations in H1 Tags   Relevancy-0.1810262 %79 %
43Variations in First 100 Words   Relevancy-0.18159974 %80 %
44Number of HTML Tags   Size-0.18480599586 %86 %
45Variations in Absolute URLs   Relevancy-0.1880938471 %88 %
46Variations in the Title Tag   Relevancy-0.1837274 %77 %
47Variations in Meta Description   Relevancy-0.176261 %81 %
48Variations in Script Tags   Relevancy-0.171222710369 %88 %
49Variations in Span Tags   Relevancy-0.176771357 %87 %
50Unabridged Word Count   Size-0.177332169486 %87 %
51Clean Keyword Density in the HTML Tag   Relevancy-0.17197577 %79 %
52Word Count   Size-0.173761135786 %87 %
53Number of Sentences   Size-0.1777312185 %86 %
54Entities in H3 Tags-0.1741643 %91 %
55Clean Text Kilobytes   Size-0.17491181 %87 %
56Entities in Meta Description Tag   Relevancy-0.179358 %85 %
57Variation Density in Top 30KB   Relevancy-0.17261371 %82 %
58Leading Variations in H1 Tags   Relevancy-0.172132 %79 %
59Number of Includes   Technology-0.17552382 %72 %
60Variations in OpenGraph Title   Relevancy-0.175258 %72 %
61Variations in ALT Attributes   Relevancy-0.16206950 %86 %
62Number of HTTPS Links   Authority-0.1667913783 %84 %
63Variations Making Whole Span Tags   Relevancy-0.169124 %79 %
64Number of Questions   Size-0.16791067 %85 %
65Number of Links   Authority-0.1667913983 %83 %
66Leading Variations in H2 Tags   Relevancy-0.168126 %83 %
67Number of Internal Links   Authority-0.1656812283 %84 %
68Leading Variations in Title Tag   Relevancy-0.161136 %76 %
69Variations in Nav Tags   Relevancy-0.1632072851 %83 %
70Has Entities in H1 Tags   Relevancy-0.161158 %78 %
71Page Size Kilobytes   Size-0.1683625287 %84 %
72Variations in Main Tags   Relevancy-0.16160859737 %83 %
73LSI Words in Sentences   Relevancy-0.16300956060 %95 %
74Number of DoFollow Links   Authority-0.1642313383 %84 %
75Number of Images   Size-0.162233080 %83 %
76Variations in OpenGraph Description   Relevancy-0.165253 %78 %
77Variations in H3 Tags   Relevancy-0.1692339 %84 %
78Number of Images with ALT Text   Size-0.151922075 %81 %
79Number of Absolute URLs   Authority-0.1598825286 %82 %
80Exact Matches in the HTML Tag   Relevancy-0.152821031 %85 %
81Number of Heading Tags   Size-0.15662181 %82 %
82Number of H2 Tags   Size-0.1516771 %82 %
83Variations making whole H1-H6 Tags   Relevancy-0.154119 %74 %
84Number of P Tags   Size-0.151773580 %81 %
85Number of Facebook Pages   Authority-0.157262 %74 %
86Variations Making Whole LI Tags   Relevancy-0.159129 %76 %
87Number of CSS Includes   Technology-0.1519874 %68 %
88Has JSON-LD Schema Markup   Relevancy-0.151155 %70 %
89Variation Count in Top 30KB   Relevancy-0.1549323574 %82 %
90Variations in Button Tags   Relevancy-0.151326512 %80 %
91Variations making whole H1, H2, and H3 Tags   Relevancy-0.154118 %73 %
92Variations making whole A Tags   Relevancy-0.1525235 %75 %
93TF/IDF   Relevancy-0.151170 %80 %
94Search Result URL Length   Size-0.15976296 %52 %
95Variations in Footer Tags   Relevancy-0.1529121139 %81 %
96Variations in Section Tags   Relevancy-0.1513062440 %80 %
97Search Result Number of Dirs in Path   Other-0.154276 %76 %
98Number of Instagram Pages   Authority-0.1414243 %72 %
99Uses Schema searchresultspage   Other-0.14112 %14 %
100Uses JSON-LD SearchResultsPage   Other-0.14112 %14 %
101Title Tag Has Entities   Relevancy-0.141169 %80 %
102Variations in the last 100 words   Relevancy-0.14161557 %79 %
103Number of Questions In Headings   Size-0.148235 %84 %
104Number Of JSON-LD Types   Relevancy-0.141001359 %80 %
105Uses JSON-LD ItemList   Other-0.14114 %46 %
106Uses Schema itemlist   Other-0.14114 %48 %
107Inline JavaScript Kilobytes   Size-0.143358383 %80 %
108Variations in TITLE Attributes   Relevancy-0.14110741 %80 %
109Number of Prices   Size-0.146085969 %82 %
110Number of External Links   Authority-0.141571779 %79 %
111Number of Nofollow Links   Authority-0.14257628 %76 %
112Leading Variations in H3 Tags   Relevancy-0.1410118 %78 %
113Number of DoFollow External Links   Authority-0.141421578 %77 %
114Number of HTML Comments   Size-0.144264073 %80 %
115Has Entities in H2 Tags   Relevancy-0.141153 %80 %
116Inline CSS Kilobytes   Size-0.141665563 %77 %
117Number of LinkedIn Pages   Authority-0.145128 %74 %
118Number of H3 Tags   Size-0.1438863 %82 %
119Percentage of DoFollow Internal Links   Authority-0.13907382 %76 %
120Variations in Value Attributes   Relevancy-0.1349216 %72 %
121Number of Forms   Technology-0.1312258 %74 %
122Variations in Strong Tags   Relevancy-0.13117330 %78 %
123Exact Matches in H1-H6 Tags   Relevancy-0.1310121 %84 %
124Meta Description Tag Has Entities   Relevancy-0.131158 %74 %
125Entities in H4 Tags-0.1325220 %85 %
126Number of JavaScript Includes   Technology-0.13361683 %73 %
127Number of US Phone Numbers   Trust-0.131271043 %73 %
128Headings Has Question   Other-0.131135 %74 %
129Number of Twitter Accounts   Authority-0.134133 %72 %
130Number of H1 Tags   Size-0.1318274 %77 %
131Number of Questions In H2 Tags   Size-0.134122 %76 %
132LSI Words in Title Tag   Relevancy-0.1322560 %91 %
133Percentage of NoFollow Links   Authority-0.1311326 %71 %
134Variations in B Tags   Relevancy-0.1358415 %73 %
135Variations in Search Result Summary   Relevancy-0.1345387 %68 %
136Percentage of DoFollow Links   Authority-0.13998583 %81 %
137Uses Schema answer   Other-0.13118 %62 %
138Uses JSON-LD Question   Other-0.13117 %60 %
139Uses JSON-LD Answer   Other-0.13117 %61 %
140Uses Schema question   Other-0.13118 %62 %
141LSI Words in H2 Tags   Relevancy-0.13741650 %92 %
142Has Privacy Policy   Trust-0.131162 %73 %
143Percentage of NoFollow Internal Links   Authority-0.138216 %69 %
144Uses JSON-LD text   Other-0.13117 %61 %
145Uses Schema faqpage   Other-0.13117 %63 %
146Title Word Count   Size-0.1319884 %66 %
147Uses JSON-LD FAQPage   Other-0.13116 %61 %
148Variations in ID Attributes   Relevancy-0.13581317 %81 %
149Variations in Style Tags   Relevancy-0.13284386120 %79 %
150Word Count in Meta Description   Size-0.12752069 %73 %
151Flesch Kincaid Reading Grade Level   Other-0.127294 %78 %
152Has Canonical URL   Authority-0.121172 %70 %
153Variations in Form Tags   Relevancy-0.1244114 %71 %
154Exact Matches in Top 30KB   Relevancy-0.1230218 %76 %
155Uses JSON-LD State   Other-0.12114 %17 %
156Number of Facebook Accounts   Authority-0.123131 %71 %
157Variations in Article Tags   Relevancy-0.1218341725 %69 %
158Meta Description Length   Size-0.1242212469 %73 %
159Has Entities in H3 Tags   Relevancy-0.121143 %79 %
160Uses Schema numberofitems   Other-0.12111 %11 %
161Has Terms of Service   Trust-0.121141 %68 %
162Number of Images without ALT Text   Size-0.12801060 %79 %
163Percentage of DoFollow External Links   Authority-0.12261276 %68 %
164Uses Schema state   Other-0.12114 %17 %
165Number of Social Pages   Authority-0.1215466 %77 %
166Exact Matches in Sentences   Relevancy-0.1235322 %86 %
167Number of Questions In H3 Tags   Size-0.124115 %80 %
168Average Words Per Sentence   Size-0.121583581 %71 %
169Variations in H4-H6 Tags   Relevancy-0.1236221 %78 %
170Variations in Class Attributes   Relevancy-0.1247211628 %78 %
171Has Meta Charset   Technology-0.121177 %68 %
172Aggressive Variation Density   Relevancy-0.12658215 %66 %
173Uses Schema listitem   Other-0.121140 %63 %
174Is Purchase Page   Other-0.121145 %63 %
175Uses JSON-LD ListItem   Other-0.121136 %62 %
176Search Result Uses HTTPS   Other-0.121186 %79 %
177LSI Words in H1 Tags   Relevancy-0.1239452 %89 %
178Has Meta Description   Relevancy-0.121168 %69 %
179Exact Matches in Title Tag   Relevancy-0.122118 %77 %
180Uses Schema addressregion   Other-0.121118 %55 %
181Variations in H4 Tags   Relevancy-0.1225116 %76 %
182Uses JSON-LD Country   Other-0.12112 %22 %
183Uses JSON-LD image   Other-0.121116 %58 %
184Is Home Page   Other-0.121114 %41 %
185Number of NoFollow External Links   Authority-0.12119319 %72 %
186Uses Schema addresslocality   Other-0.121119 %58 %
187Has Meta Viewport   Technology-0.121183 %75 %
188Is Category Page   Other-0.121112 %66 %
189Is Pagination Page   Other-0.121118 %64 %
190Uses JSON-LD addressRegion   Other-0.121117 %56 %
191Uses Schema offercatalog   Other-0.12112 %22 %
192Variations in I Tags   Relevancy-0.12208527 %72 %
193Uses JSON-LD addressLocality   Other-0.121117 %58 %
194Title Length   Size-0.121355284 %64 %
195Has Schema Markup   Relevancy-0.121165 %67 %
196Has Meta Robots   Other-0.121126 %64 %
197Uses JSON-LD itemListOrder   Other-0.12111 %14 %
198Uses Schema postaladdress   Other-0.121119 %59 %
199LSI Words in Meta Description Tag   Relevancy-0.1227949 %88 %
200Variations in Meta Twitter Description   Relevancy-0.124124 %70 %