Measures 149782 SEO Factors

148060 Built-In SEO Factors

138883 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 2020-5     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-0.26622784 %51 %
2Variations in Body Tags   Relevancy-0.2275312875 %95 %
3LSI Words in Sentences   Relevancy-0.21371752373 %78 %
4Variations in HTML Tags   Relevancy-0.21129514279 %95 %
5Variations in Div Tags   Relevancy-0.21106710079 %95 %
6Number of Factors Used   Diversity-0.2119911986 %92 %
7Variations in H1-H6 Tags   Relevancy-0.2180773 %94 %
8Variations in A Tags   Relevancy-0.21342475 %95 %
9Variations in H1, H2, and H3 Tags   Relevancy-0.280672 %94 %
10Term Frequency   Relevancy-0.28579 %94 %
11Variations in P Tags   Relevancy-0.21633070 %93 %
12Entities in Title Tag   Relevancy-0.197375 %47 %
13Variations in A Tag HREF Attributes   Relevancy-0.192384170 %94 %
14Variations in H1 and H2 Tags   Relevancy-0.1979470 %92 %
15Entities in H2 Tags-0.1926553 %51 %
16Exact Matches in Body Tag   Relevancy-0.191911338 %91 %
17Variations in Search Result Display URL   Relevancy-0.184281 %76 %
18Variations in Search Result Link Text   Relevancy-0.184280 %78 %
19Variations in Sentences   Relevancy-0.181011769 %92 %
20LSI Words in Title Tag   Relevancy-0.1822677 %74 %
21Entities in H3 Tags-0.1735645 %50 %
22Clean Text Kilobytes   Size-0.17451083 %88 %
23Variations in H2 Tags   Relevancy-0.1777346 %92 %
24Exact Matches in the HTML Tag   Relevancy-0.17221936 %91 %
25Leading Variations in H1-H6 Tags   Relevancy-0.1714249 %90 %
26Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1713247 %89 %
27Variations in Search Result URL   Relevancy-0.175259 %78 %
28Variations in Search Result Document File Name   Relevancy-0.174259 %65 %
29Variations in LI Tags   Relevancy-0.17851665 %94 %
30Ahrefs Referring Class C Addresses   Authority-0.176533236 %20 %
31Entities in Sentences   Relevancy-0.177099060 %70 %
32Ahrefs Referring IP Addresses   Authority-0.1710064336 %20 %
33Body Tag Size Kilobytes   Size-0.161777278 %88 %
34Variations in Search Result URL Path   Relevancy-0.164259 %75 %
35Variations in Script Tags   Relevancy-0.162412858 %92 %
36Ahrefs Referring Domains   Authority-0.1614015436 %20 %
37Unabridged Word Count   Size-0.167798162784 %88 %
38Variations in Absolute URLs   Relevancy-0.162404364 %91 %
39Variations in ALT Attributes   Relevancy-0.1643751 %91 %
40LSI Words in H2 Tags   Relevancy-0.16941459 %78 %
41Exact Matches in H1-H6 Tags   Relevancy-0.1618229 %89 %
42Page Size Kilobytes   Size-0.1628611785 %87 %
43Word Count   Size-0.165883130284 %88 %
44Entities in Meta Description Tag   Relevancy-0.1630359 %47 %
45Keywords in pages top 10 most used phrases-0.165263 %87 %
46Entities in H4 Tags-0.1610325 %47 %
47Variations in Meta Description   Relevancy-0.1618255 %88 %
48Variations in the Title Tag   Relevancy-0.154271 %80 %
49Ahrefs Text Backlinks   Authority-0.158084471431836 %21 %
50LSI Words in Meta Description Tag   Relevancy-0.15501060 %76 %
51Ahrefs NoFollow Backlinks   Authority-0.153956548728 %20 %
52Ahrefs Backlinks   Authority-0.158084691432336 %21 %
53Ahrefs Referring Pages   Authority-0.158084681432336 %21 %
54Variations in Span Tags   Relevancy-0.1550852 %90 %
55Variations in the Canonical URL   Relevancy-0.154247 %82 %
56Entities in H1 Tags-0.157260 %46 %
57Entities in the HTML Tag   Relevancy-0.15181528461 %69 %
58Number of Sentences   Size-0.152004082 %86 %
59Variations in H1 Tags   Relevancy-0.154260 %81 %
60LSI Words in H3 Tags   Relevancy-0.151091653 %75 %
61Number of P Tags   Size-0.152403780 %85 %
62Keywords in pages top 5 most used phrases-0.153154 %87 %
63Variations in First 100 Words   Relevancy-0.1523663 %80 %
64Variations in H3 Tags   Relevancy-0.1520334 %91 %
65Number of HTML Tags   Size-0.15241471385 %87 %
66Exact Matches in Title Tag   Relevancy-0.152126 %83 %
67Ahrefs Dofollow Backlinks   Authority-0.148033291390631 %20 %
68Number of Questions   Size-0.1430666 %81 %
69Number of Questions In Headings   Size-0.147235 %83 %
70Exact Matches in A Tags   Relevancy-0.1457325 %86 %
71Leading Variations in Title Tag   Relevancy-0.141135 %75 %
72Keywords in pages top 3 most used phrases-0.143145 %84 %
73LSI Words in H1 Tags   Relevancy-0.1421566 %70 %
74TF/IDF   Relevancy-0.141162 %83 %
75Number of HTTPS Links   Authority-0.1441511479 %86 %
76Leading Variations in H1 Tags   Relevancy-0.142130 %77 %
77Number of Heading Tags   Size-0.14531881 %86 %
78Variations in Nav Tags   Relevancy-0.141841341 %88 %
79Leading Variations in H2 Tags   Relevancy-0.146122 %87 %
80Variations making whole A Tags   Relevancy-0.146133 %84 %
81Number of Images with ALT Text   Size-0.14861674 %84 %
82Ahrefs Has Text Backlinks   Authority-0.131136 %20 %
83Number of Images   Size-0.13972580 %82 %
84Variations in Section Tags   Relevancy-0.13711532 %88 %
85Ahrefs Has NoFollow Backlinks   Authority-0.131128 %20 %
86Variations in Article Tags   Relevancy-0.131512232 %77 %
87Number of Links   Authority-0.1341712381 %82 %
88Has Entities in H1 Tags   Relevancy-0.131161 %43 %
89Variations in Search Result Summary   Relevancy-0.135262 %74 %
90Ahrefs Has Backlinks   Authority-0.131137 %20 %
91Variations in OpenGraph Description   Relevancy-0.1317244 %84 %
92Variations in OpenGraph Title   Relevancy-0.134148 %78 %
93Exact Matches in H1 Tags   Relevancy-0.133121 %82 %
94Number of Absolute URLs   Authority-0.1340012182 %81 %
95Number of Questions In H2 Tags   Size-0.133119 %81 %
96Number of H2 Tags   Size-0.1326667 %88 %
97Variations in Strong Tags   Relevancy-0.1316332 %85 %
98Title Tag Has Entities   Relevancy-0.131173 %42 %
99Number of Internal Links   Authority-0.1339710680 %83 %
100Number of DoFollow Links   Authority-0.1341211681 %82 %
101Search Result Summary Length   Size-0.1343220086 %68 %
102Load Time Milliseconds   Performance-0.1367846236182 %70 %
103Has Entities in H2 Tags   Relevancy-0.131154 %46 %
104Variations Making Whole Span Tags   Relevancy-0.137118 %82 %
105Ahrefs Has Dofollow Backlinks   Authority-0.131131 %21 %
106Variations in Footer Tags   Relevancy-0.1351633 %84 %
107Variations in Main Tags   Relevancy-0.123153824 %84 %
108Title Has Sales Words   Other-0.121116 %74 %
109Inline JavaScript Kilobytes   Size-0.12862478 %83 %
110Ahrefs Rank   Authority-0.1240847 %15 %
111Number of H3 Tags   Size-0.1227761 %84 %
112Headings Has Question   Other-0.121135 %77 %
113Search Result Uses HTTPS   Other-0.121180 %78 %
114Number of Questions In H3 Tags   Size-0.124115 %79 %
115Variations in TITLE Attributes   Relevancy-0.1289736 %85 %
116Leading Variations in H3 Tags   Relevancy-0.1210116 %81 %
117Variations in H4-H6 Tags   Relevancy-0.129221 %85 %
118Variations in H4 Tags   Relevancy-0.128116 %85 %
119Title Has Sentiment Words   Other-0.121117 %75 %
120Exact Matches in Sentences   Relevancy-0.1230219 %87 %
121Variations making whole H1-H6 Tags   Relevancy-0.122115 %78 %
122Inline CSS Kilobytes   Size-0.121222249 %86 %
123Exact Matches in H2 Tags   Relevancy-0.1217113 %86 %
124Variations in the last 100 words   Relevancy-0.1217453 %82 %
125Exact Matches in Meta Description   Relevancy-0.123116 %85 %
126Number of External Links   Authority-0.12821775 %79 %
127Search Result Link Text Length   Size-0.12734987 %64 %
128Variations Making Whole LI Tags   Relevancy-0.124125 %81 %
129LSI Words in H4 Tags   Relevancy-0.1243735 %71 %
130Has Canonical URL   Authority-0.121165 %74 %
131Has Entities in H3 Tags   Relevancy-0.121145 %45 %
132Number of Nofollow Links   Authority-0.1281735 %81 %
133Number of NoFollow External Links   Authority-0.1236424 %82 %
134Variations making whole H1, H2, and H3 Tags   Relevancy-0.122114 %76 %
135Head Size Kilobytes   Size-0.111332874 %85 %
136Meta Description Tag Has Entities   Relevancy-0.111159 %43 %
137Variations in I Tags   Relevancy-0.1113221 %85 %
138Average Words Per Sentence   Size-0.113143880 %65 %
139Has Entities in H4 Tags   Relevancy-0.111126 %42 %
140Variations in Search Result URL Domain Name   Relevancy-0.11114 %49 %
141Ahrefs Image Backlinks-0.1175343151012 %19 %
142Word Count in Meta Description   Size-0.11601962 %79 %
143Number of US Phone Numbers   Trust-0.1146531 %77 %
144Variations in ID Attributes   Relevancy-0.119111 %87 %
145Has FavIcon   Technology-0.111165 %68 %
146Search Result Number of Dirs in Path   Other-0.114273 %60 %
147Number of DoFollow External Links   Authority-0.11691472 %76 %
148Ahrefs Has Image Backlinks   Authority-0.111112 %18 %
149Meta Description Length   Size-0.1157711262 %78 %
150Percentage of NoFollow Links   Authority-0.1123533 %76 %
151Variations making whole H1 Tags   Relevancy-0.11119 %73 %
152Search Result Link Text Has Year   Other-0.111110 %66 %
153Variations Making Whole Strong Tags   Relevancy-0.11417 %78 %
154Keywords in pages most used phrase-0.111122 %77 %
155Number of HREF Lang Tags   Size-0.11529 %77 %
156Percentage of NoFollow External Links   Authority-0.116322 %79 %
157Variations in Class Attributes   Relevancy-0.189525 %84 %
158Flesch Kincaid Reading Ease   -0.11449685 %68 %
159Title Has Year   Other-0.1119 %74 %
160Has Meta Description   Relevancy-0.11162 %76 %
161Has JSON-LD ImageObject-0.11127 %69 %
162Has OpenGraph Image   Relevancy-0.11145 %69 %
163Has JSON-LD WebPage-0.11127 %65 %
164Number of Social Accounts   Authority-0.14243 %73 %
165Entities in H5 Tags-0.1519 %39 %
166Has Privacy Policy   Trust-0.11150 %73 %
167Number of H4 Tags   Size-0.114441 %79 %
168Leading Variations in H4-H6 Tags   Relevancy-0.1419 %79 %
169DomDetailer Majestic Referring Subnets   Authority-0.182041742048 %16 %
170Variations in Meta Twitter Description   Relevancy-0.14123 %77 %
171Search Result Has Schema   Other-0.1115 %65 %
172DomDetailer Moz PA   Authority-0.1602149 %16 %
173Title Word Count   Size-0.117880 %67 %
174Number of Facebook Accounts   Authority-0.12128 %72 %
175Variations in Aside Tags   Relevancy-0.137515 %77 %
176Search Result URL Length   Size-0.11355482 %48 %
177Number of Questions In H4 Tags   Size-0.1317 %64 %
178Has JSON-LD Organization-0.11125 %71 %
179Has Apple Touch Icon   Technology-0.11139 %68 %
180Ahrefs Internal Links   Authority-0.13734344 %20 %
181DomDetailer Majestic IPs   Authority-0.13974752926749 %16 %
182Is OpenGraph Type Article   Technology-0.11133 %64 %
183Leading Variations in H4 Tags   Relevancy-0.1417 %79 %
184Has Copyright   Trust-0.11164 %67 %
185Variations in B Tags   Relevancy-0.113212 %78 %
186Variations in Value Attributes   Relevancy-0.116111 %74 %
187DomDetailer Majestic Referring Domains   Authority-0.1243094418683050 %16 %
188Meta Description Tag Has Question   Other-0.1118 %63 %
189Number of Twitter Accounts   Authority-0.14136 %70 %
190Variations in Meta Twitter Content   Relevancy-0.13125 %72 %
191Variations in Em Tags   Relevancy-0.17110 %77 %
192Has Meta Robots   Other-0.11133 %67 %
193Flesch Kincaid Reading Grade Level   Other-0.17277 %66 %
194Search Result Publish Date-0.12006431947169763538383 %43 %
195DomDetailer Majestic CF   Authority-0.1521747 %16 %
196Has Meta Twitter Card   Authority-0.11137 %68 %
197DomDetailer Moz DA   Authority-0.1731944 %15 %
198LSI Words in H5 Tags   Relevancy-0.127313 %66 %
199DomDetailer Facebook Shares   Authority-0.169086783808173947 %17 %
200Number of Instagram Pages   Authority-0.16125 %72 %