Measures 149776 SEO Factors

148054 Built-In SEO Factors

138877 On-page SEO Factors

9177 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 2020-9     previous - today - next

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Distinct Entities Used   Diversity-0.29552687 %34 %
2Variations in HTML Tags   Relevancy-0.2675918991 %93 %
3Variations in Body Tags   Relevancy-0.2466117185 %94 %
4Term Frequency   Relevancy-0.248691 %94 %
5Variations in Div Tags   Relevancy-0.2455613890 %93 %
6Exact Matches in the HTML Tag   Relevancy-0.242561654 %92 %
7Variations in H1-H6 Tags   Relevancy-0.23501184 %93 %
8Variations in H1, H2, and H3 Tags   Relevancy-0.23461083 %92 %
9Exact Matches in Body Tag   Relevancy-0.232101953 %93 %
10Variations in Search Result Display URL   Relevancy-0.235290 %81 %
11Variations in Search Result Link Text   Relevancy-0.235290 %81 %
12Number of Factors Used   Diversity-0.2219913496 %90 %
13Variations in A Tags   Relevancy-0.222334185 %95 %
14Variations in P Tags   Relevancy-0.221563781 %89 %
15Variations in H1 and H2 Tags   Relevancy-0.2232580 %90 %
16Variations in Search Result URL Path   Relevancy-0.214269 %74 %
17Entities in Title Tag   Relevancy-0.216375 %33 %
18Variations in A Tag HREF Attributes   Relevancy-0.213365076 %94 %
19Exact Matches in H1-H6 Tags   Relevancy-0.2113343 %90 %
20Variations in Sentences   Relevancy-0.21772177 %90 %
21Variations in the Title Tag   Relevancy-0.214284 %81 %
22Variations in LI Tags   Relevancy-0.21612476 %93 %
23Variations in Search Result Document File Name   Relevancy-0.24267 %70 %
24Leading Variations in H1, H2, and H3 Tags   Relevancy-0.222354 %89 %
25Leading Variations in H1-H6 Tags   Relevancy-0.224457 %89 %
26Variations in Search Result URL   Relevancy-0.24265 %82 %
27Variations in H2 Tags   Relevancy-0.231453 %91 %
28Entities in H2 Tags-0.238551 %33 %
29Variations in Span Tags   Relevancy-0.2731566 %90 %
30Keywords in pages top 10 most used phrases-0.25269 %88 %
31LSI Words in Sentences   Relevancy-0.19579277077 %95 %
32Page Size Kilobytes   Size-0.1937813396 %88 %
33Exact Matches in Title Tag   Relevancy-0.192138 %84 %
34Variations in Meta Description   Relevancy-0.1915263 %85 %
35Entities in H3 Tags-0.1938542 %34 %
36Variations in ALT Attributes   Relevancy-0.19521362 %91 %
37Exact Matches in A Tags   Relevancy-0.1967539 %89 %
38Search Result Publish Date-0.182000089933176120504285 %27 %
39Leading Variations in Title Tag   Relevancy-0.181141 %78 %
40Keywords in pages top 5 most used phrases-0.183155 %88 %
41Clean Text Kilobytes   Size-0.18441193 %82 %
42Variations in the Canonical URL   Relevancy-0.184252 %80 %
43Variations in Absolute URLs   Relevancy-0.182555271 %91 %
44Leading Variations in H1 Tags   Relevancy-0.182135 %80 %
45Word Count   Size-0.186118149795 %84 %
46Unabridged Word Count   Size-0.188056190095 %85 %
47Variations in Script Tags   Relevancy-0.182622862 %94 %
48Keywords in pages top 3 most used phrases-0.183142 %85 %
49Variations in First 100 Words   Relevancy-0.1827771 %83 %
50TF/IDF   Relevancy-0.181175 %81 %
51Variations in H1 Tags   Relevancy-0.185270 %80 %
52Number of HTML Tags   Size-0.18277587897 %82 %
53Body Tag Size Kilobytes   Size-0.172827985 %87 %
54LSI Words in Title Tag   Relevancy-0.1727774 %92 %
55Variations in H3 Tags   Relevancy-0.1733543 %89 %
56Ahrefs Referring Domains   Authority-0.1724878341 %16 %
57Entities in H1 Tags-0.176261 %31 %
58Ahrefs Referring Class C Addresses   Authority-0.177213741 %16 %
59Variations in Strong Tags   Relevancy-0.1729646 %83 %
60Ahrefs Referring IP Addresses   Authority-0.1710254942 %16 %
61Number of Heading Tags   Size-0.16652392 %82 %
62Number of Sentences   Size-0.162104092 %84 %
63Exact Matches in Sentences   Relevancy-0.1624332 %90 %
64Exact Matches in H2 Tags   Relevancy-0.167122 %89 %
65Exact Matches in Meta Description   Relevancy-0.163123 %87 %
66Search Result Number of Dirs in Path   Other-0.164286 %62 %
67Number of HTTPS Links   Authority-0.1649814590 %82 %
68Number of H2 Tags   Size-0.1636675 %83 %
69LSI Words in H2 Tags   Relevancy-0.162722157 %93 %
70Ahrefs Backlinks   Authority-0.1614443901509142 %16 %
71Ahrefs Referring Pages   Authority-0.1614443901509142 %16 %
72Number of Images   Size-0.16903592 %79 %
73Number of P Tags   Size-0.162534290 %81 %
74Exact Matches in H1 Tags   Relevancy-0.163129 %81 %
75Variations in OpenGraph Title   Relevancy-0.163260 %78 %
76Ahrefs Text Backlinks   Authority-0.1614443011498041 %16 %
77Variations in OpenGraph Description   Relevancy-0.1611254 %83 %
78Inline JavaScript Kilobytes   Size-0.161372891 %84 %
79Variations in Search Result Summary   Relevancy-0.165265 %76 %
80Variations in the last 100 words   Relevancy-0.1616456 %82 %
81Entities in Meta Description Tag   Relevancy-0.158357 %32 %
82Variations in TITLE Attributes   Relevancy-0.15821349 %88 %
83Ahrefs NoFollow Backlinks   Authority-0.15456201380334 %16 %
84Ahrefs Dofollow Backlinks   Authority-0.159880981151735 %16 %
85Head Size Kilobytes   Size-0.15963391 %81 %
86Number of Questions In H2 Tags   Size-0.154119 %78 %
87Has Entities in H1 Tags   Relevancy-0.151162 %28 %
88Number of Links   Authority-0.1550216093 %78 %
89Variations in Section Tags   Relevancy-0.15702137 %87 %
90Ahrefs Rank   Authority-0.15441269 %15 %
91Number of Questions In Headings   Size-0.1511235 %80 %
92Variations in Nav Tags   Relevancy-0.151821545 %87 %
93Variations making whole A Tags   Relevancy-0.156132 %84 %
94Has JSON-LD SoftwareApplication-0.15112 %12 %
95Number of Images with ALT Text   Size-0.15622286 %82 %
96Number of Internal Links   Authority-0.1548414592 %81 %
97Ahrefs Word Count   Size-0.15406593850 %15 %
98Number of DoFollow Links   Authority-0.1549015393 %78 %
99Search Result Uses HTTPS   Other-0.151184 %76 %
100Title Tag Has Entities   Relevancy-0.141175 %26 %
101Entities in H4 Tags-0.1411224 %32 %
102Leading Variations in H3 Tags   Relevancy-0.1412222 %84 %
103Number of Absolute URLs   Authority-0.1449814894 %82 %
104Variations Making Whole Span Tags   Relevancy-0.1418119 %85 %
105Leading Variations in H2 Tags   Relevancy-0.1411124 %87 %
106Number of H3 Tags   Size-0.14311072 %82 %
107DomDetailer Majestic IPs   Authority-0.141553724077377 %19 %
108Load Time Milliseconds   Performance-0.1444864270996 %68 %
109Has Entities in H2 Tags   Relevancy-0.141152 %29 %
110DomDetailer Majestic Referring Subnets   Authority-0.14481841054277 %19 %
111DomDetailer Majestic Referring Domains   Authority-0.14112687125408377 %19 %
112Variations Making Whole LI Tags   Relevancy-0.145124 %79 %
113DomDetailer Moz DA   Authority-0.14803175 %16 %
114Search Result Summary Length   Size-0.1441119789 %72 %
115DomDetailer Moz PA   Authority-0.14703377 %17 %
116Inline CSS Kilobytes   Size-0.14812358 %77 %
117LSI Words in Meta Description Tag   Relevancy-0.14641357 %92 %
118Ahrefs Has Backlinks   Authority-0.141141 %16 %
119Number of Questions   Size-0.1440663 %78 %
120Variations in I Tags   Relevancy-0.1422433 %84 %
121Headings Has Question   Other-0.131134 %72 %
122Ahrefs Has Text Backlinks   Authority-0.131141 %16 %
123Variations in Main Tags   Relevancy-0.132284326 %82 %
124Number of HREF Lang Tags   Size-0.1336212 %76 %
125Ahrefs Has Dofollow Backlinks   Authority-0.131135 %16 %
126Variations in Footer Tags   Relevancy-0.1342636 %81 %
127Flesch Kincaid Reading Grade Level   Other-0.138179 %66 %
128Ahrefs Linked Root Domains   Authority-0.1320652 %16 %
129Has Entities in H3 Tags   Relevancy-0.131143 %29 %
130Ahrefs Has NoFollow Backlinks   Authority-0.131133 %16 %
131DomDetailer Moz Rank   Authority-0.138474 %15 %
132LSI Words in H1 Tags   Relevancy-0.1329663 %86 %
133Leading Variations in Meta Description   Relevancy-0.131118 %75 %
134Percentage of DoFollow Internal Links   Authority-0.13938392 %68 %
135Variations making whole H1-H6 Tags   Relevancy-0.132113 %79 %
136Ahrefs Internal Links   Authority-0.134305950 %16 %
137DomDetailer Majestic CF   Authority-0.13602975 %17 %
138Variations in H4-H6 Tags   Relevancy-0.1316225 %84 %
139Ahrefs External Links   Authority-0.13931348 %16 %
140Number of Forms   Technology-0.1313374 %72 %
141LSI Words in H3 Tags   Relevancy-0.131762954 %90 %
142Exact Matches in H3 Tags   Relevancy-0.138115 %86 %
143DomDetailer Majestic Links   Authority-0.132401931641098442377 %19 %
144Variations making whole H1, H2, and H3 Tags   Relevancy-0.132112 %79 %
145Has JSON-LD AggregateRating-0.13117 %64 %
146Variations in H4 Tags   Relevancy-0.1314219 %83 %
147Ahrefs Images   Relevancy-0.12731346 %15 %
148Number of External Links   Authority-0.12491687 %76 %
149Variations in Value Attributes   Relevancy-0.1235215 %76 %
150Has Privacy Policy   Trust-0.121134 %66 %
151Variations in ID Attributes   Relevancy-0.128113 %83 %
152Leading Variations in H4-H6 Tags   Relevancy-0.128111 %78 %
153DomDetailer Facebook Shares   Authority-0.1236046387628434470 %18 %
154DomDetailer Moz Links   Authority-0.12683429971432802677 %19 %
155Variations in Meta Keywords   Relevancy-0.1215223 %76 %
156Number of DoFollow External Links   Authority-0.12411484 %73 %
157Word Count in Meta Description   Size-0.121032571 %79 %
158Ahrefs Page Size   Size-0.12527161728451 %15 %
159Variations Making Whole Strong Tags   Relevancy-0.12419 %82 %
160Search Result Has Params   Other-0.12114 %50 %
161Search Result Link Text Length   Size-0.12895596 %67 %
162Meta Description Length   Size-0.1248913271 %77 %
163Has MicroData Description-0.12116 %59 %
164Variations in Em Tags   Relevancy-0.129218 %75 %
165Variations in Search Result URL Domain Name   Relevancy-0.12215 %42 %
166DomDetailer Majestic TF   Authority-0.12622167 %17 %
167Has Meta Description   Relevancy-0.121172 %74 %
168Variations in Class Attributes   Relevancy-0.12115625 %82 %
169Meta Description Tag Has Entities   Relevancy-0.121157 %26 %
170Number of Nofollow Links   Authority-0.1240845 %76 %
171Ahrefs Image Backlinks-0.1276635136414 %14 %
172Number of NoFollow External Links   Authority-0.1217329 %74 %
173Has HREF Lang   Technology-0.121113 %66 %
174Variations in Article Tags   Relevancy-0.121321829 %72 %
175Has Terms of Service   Trust-0.121125 %70 %
176Variations in Aside Tags   Relevancy-0.12117717 %74 %
177Ahrefs Pages   Size-0.114154 %16 %
178Variations in Meta Twitter Description   Relevancy-0.1111124 %73 %
179Leading Variations in H4 Tags   Relevancy-0.11518 %77 %
180Percentage of DoFollow External Links   Authority-0.11501282 %58 %
181Average Words Per Sentence   Size-0.112975793 %67 %
182Has Form   Technology-0.111174 %63 %
183Has Canonical URL   Authority-0.111175 %72 %
184Variations in Form Tags   Relevancy-0.116114 %77 %
185Has JSON-LD Offer-0.11116 %54 %
186Variations in B Tags   Relevancy-0.1113215 %79 %
187Ahrefs Has External Links   Authority-0.111148 %16 %
188Percentage of DoFollow Links   Authority-0.111009392 %70 %
189Ahrefs Has Internal Links   Authority-0.111150 %16 %
190Variations making whole H1 Tags   Relevancy-0.11117 %79 %
191Number of Social Accounts   Authority-0.113243 %69 %
192Ahrefs Has Linked Root Domains   Authority-0.111151 %16 %
193Number of Twitter Accounts   Authority-0.112133 %63 %
194Number of US Phone Numbers   Trust-0.11162631 %73 %
195Variations in Option Tags   Relevancy-0.115826 %74 %
196Variations in Figure Tags   Relevancy-0.11113814 %76 %
197Number of Social Pages   Authority-0.1112138 %69 %
198Keywords in pages most used phrase-0.111117 %79 %
199Number of Questions In H4 Tags   Size-0.11216 %64 %
200Ahrefs Has Image Backlinks   Authority-0.111114 %13 %