Measures 149786 SEO Factors

148064 Built-In SEO Factors

138887 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 2020-2     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-0.281425191 %31 %
2Variations in HTML Tags   Relevancy-0.25118421790 %92 %
3Entities in Sentences   Relevancy-0.2467818886 %31 %
4LSI Words in Sentences   Relevancy-0.24382459987 %62 %
5Entities in the HTML Tag   Relevancy-0.24346275590 %30 %
6Term Frequency   Relevancy-0.238691 %89 %
7Variations in Div Tags   Relevancy-0.2361712285 %90 %
8Variations in A Tags   Relevancy-0.221292879 %91 %
9LSI Words in HTML Tag-0.2211614239291 %61 %
10Number of Factors Used   Diversity-0.2220013395 %87 %
11LSI Words in Title Tag   Relevancy-0.2224685 %57 %
12Variations in A Tag HREF Attributes   Relevancy-0.223815176 %89 %
13Variations in H1-H6 Tags   Relevancy-0.2125879 %84 %
14Variations in LI Tags   Relevancy-0.21992277 %91 %
15Variations in Search Result Display URL   Relevancy-0.215288 %72 %
16Variations in Search Result Link Text   Relevancy-0.215288 %72 %
17Variations in H1, H2, and H3 Tags   Relevancy-0.2119778 %85 %
18Variations in Sentences   Relevancy-0.22072881 %89 %
19Variations in P Tags   Relevancy-0.21743477 %90 %
20Variations in Absolute URLs   Relevancy-0.24516578 %88 %
21Exact Matches in the HTML Tag   Relevancy-0.22071144 %84 %
22Variations in H1 and H2 Tags   Relevancy-0.213476 %84 %
23Variations in Search Result URL   Relevancy-0.25271 %74 %
24Variations in Search Result URL Path   Relevancy-0.195268 %70 %
25LSI Words in Meta Description Tag   Relevancy-0.19251066 %57 %
26Variations in Body Tags   Relevancy-0.19110314577 %86 %
27Variations in the Title Tag   Relevancy-0.197282 %75 %
28Entities in Title Tag   Relevancy-0.1910481 %29 %
29Number of HTML Tags   Size-0.19213785494 %83 %
30Unabridged Word Count   Size-0.197772239893 %88 %
31Variations in ALT Attributes   Relevancy-0.1842854 %84 %
32Variations in Meta Description   Relevancy-0.186262 %83 %
33Leading Variations in H1-H6 Tags   Relevancy-0.189254 %82 %
34Clean Text Kilobytes   Size-0.18451890 %86 %
35Leading Variations in H1, H2, and H3 Tags   Relevancy-0.188251 %81 %
36Variations in the Canonical URL   Relevancy-0.185255 %75 %
37Word Count   Size-0.185959196793 %89 %
38Number of HTTPS Links   Authority-0.1842012985 %83 %
39Variations in H2 Tags   Relevancy-0.1812349 %88 %
40Keywords in pages top 10 most used phrases-0.186271 %81 %
41Variations in Span Tags   Relevancy-0.18461059 %89 %
42Keywords in pages top 5 most used phrases-0.184261 %80 %
43LSI Words in H2 Tags   Relevancy-0.18751562 %59 %
44Entities in H2 Tags-0.1854756 %31 %
45Number of Links   Authority-0.1842713987 %81 %
46Variations in Search Result Document File Name   Relevancy-0.185266 %66 %
47Number of DoFollow Links   Authority-0.1742013287 %80 %
48Variations in First 100 Words   Relevancy-0.1732874 %78 %
49Exact Matches in Body Tag   Relevancy-0.171621238 %80 %
50Entities in H3 Tags-0.1736847 %31 %
51Number of Internal Links   Authority-0.1741112287 %82 %
52Search Result Uses HTTPS   Other-0.171185 %73 %
53Number of P Tags   Size-0.172363986 %82 %
54Variations in Nav Tags   Relevancy-0.171801845 %85 %
55Variations in Script Tags   Relevancy-0.176822865 %85 %
56Keywords in pages top 3 most used phrases-0.172153 %78 %
57Exact Matches in Title Tag   Relevancy-0.172130 %70 %
58LSI Words in H1 Tags   Relevancy-0.1720573 %53 %
59Leading Variations in Title Tag   Relevancy-0.171142 %74 %
60Page Size Kilobytes   Size-0.1728612094 %78 %
61Entities in Meta Description Tag   Relevancy-0.1710461 %28 %
62Exact Matches in H1-H6 Tags   Relevancy-0.1711232 %75 %
63Number of Images with ALT Text   Size-0.17991879 %78 %
64TF/IDF   Relevancy-0.161175 %72 %
65LSI Words in H3 Tags   Relevancy-0.16841555 %59 %
66Number of Heading Tags   Size-0.16472088 %81 %
67Variations in H1 Tags   Relevancy-0.163267 %75 %
68Number of Absolute URLs   Authority-0.1653017393 %77 %
69Variations in H3 Tags   Relevancy-0.1610337 %88 %
70Load Time Milliseconds   Performance-0.1630714292794 %72 %
71Number of External Links   Authority-0.16571881 %73 %
72Leading Variations in H1 Tags   Relevancy-0.152135 %76 %
73Variations in the last 100 words   Relevancy-0.1521562 %75 %
74Number of Images   Size-0.151192787 %77 %
75Number of Sentences   Size-0.152215992 %76 %
76Number of Questions   Size-0.1548866 %79 %
77Exact Matches in A Tags   Relevancy-0.1550326 %75 %
78Number of Questions In Headings   Size-0.157235 %78 %
79Variations in OpenGraph Title   Relevancy-0.153255 %72 %
80Number of H2 Tags   Size-0.1515670 %82 %
81Variations in TITLE Attributes   Relevancy-0.1584849 %80 %
82Leading Variations in H2 Tags   Relevancy-0.155124 %80 %
83Search Result Publish Date-0.152005919508185858401789 %43 %
84Variations in Main Tags   Relevancy-0.152263925 %78 %
85Exact Matches in Sentences   Relevancy-0.1533328 %78 %
86Variations Making Whole Span Tags   Relevancy-0.158122 %80 %
87Variations in OpenGraph Description   Relevancy-0.1510247 %77 %
88Number of US Phone Numbers   Trust-0.1545740 %71 %
89Entities in H1 Tags-0.157366 %27 %
90Percentage of DoFollow Links   Authority-0.151008986 %67 %
91Number of DoFollow External Links   Authority-0.15531579 %74 %
92Number of H3 Tags   Size-0.1524864 %82 %
93Exact Matches in H1 Tags   Relevancy-0.152124 %68 %
94Search Result Link Text Length   Size-0.14785495 %62 %
95Variations in Section Tags   Relevancy-0.14831635 %81 %
96Variations making whole A Tags   Relevancy-0.148239 %78 %
97Variations in Strong Tags   Relevancy-0.1418334 %80 %
98Number of Nofollow Links   Authority-0.1449737 %77 %
99Title Tag Has Entities   Relevancy-0.141181 %23 %
100Variations in Footer Tags   Relevancy-0.1457735 %81 %
101Has Canonical URL   Authority-0.141172 %74 %
102Number of HREF Lang Tags   Size-0.1416212 %74 %
103Meta Description Length   Size-0.1427112469 %78 %
104Word Count in Meta Description   Size-0.14452169 %78 %
105Variations making whole H1-H6 Tags   Relevancy-0.142120 %70 %
106Variations in I Tags   Relevancy-0.1419322 %80 %
107Percentage of DoFollow Internal Links   Authority-0.14957785 %68 %
108Number of Questions In H2 Tags   Size-0.143119 %72 %
109Variations Making Whole LI Tags   Relevancy-0.146128 %79 %
110Number of Social Accounts   Authority-0.145252 %70 %
111Variations in Class Attributes   Relevancy-0.14171833 %73 %
112Title Has Sales Words   Other-0.141118 %65 %
113Exact Matches in Meta Description   Relevancy-0.142118 %71 %
114Has FavIcon   Technology-0.141173 %63 %
115Variations in H4-H6 Tags   Relevancy-0.1411224 %77 %
116Has Meta Description   Relevancy-0.141169 %73 %
117Headings Has Question   Other-0.141135 %70 %
118Title Has Sentiment Words   Other-0.141119 %65 %
119Title Has Year   Other-0.141113 %63 %
120Has Privacy Policy   Trust-0.141156 %66 %
121Variations in Meta Twitter Description   Relevancy-0.149232 %72 %
122Title Has Best   Other-0.131112 %58 %
123LSI Words in H4 Tags   Relevancy-0.1333735 %52 %
124Entities in H4 Tags-0.1312429 %30 %
125Title Word Count   Size-0.1328991 %60 %
126Leading Variations in H3 Tags   Relevancy-0.136118 %79 %
127Has DocType Tag   Technology-0.131186 %58 %
128Number of Includes   Technology-0.13662088 %57 %
129Keywords in pages most used phrase-0.131127 %70 %
130Title Length   Size-0.131815791 %57 %
131Number of CSS Includes   Technology-0.1325884 %57 %
132Search Result Link Text Has Year   Other-0.131113 %55 %
133Meta Description Tag Has Entities   Relevancy-0.131162 %26 %
134Number of Twitter Accounts   Authority-0.133144 %66 %
135Variations in Article Tags   Relevancy-0.131962332 %72 %
136Number of JavaScript Includes   Technology-0.13461385 %57 %
137Has Entities in H2 Tags   Relevancy-0.131156 %25 %
138Variations making whole H1, H2, and H3 Tags   Relevancy-0.132118 %70 %
139Variations in Meta Twitter Content   Relevancy-0.133135 %67 %
140Variations in ID Attributes   Relevancy-0.138215 %79 %
141Search Result Number of Dirs in Path   Other-0.134281 %58 %
142Has HREF Lang   Technology-0.131112 %67 %
143Has Entities in H1 Tags   Relevancy-0.131167 %24 %
144Percentage of DoFollow External Links   Authority-0.13291477 %61 %
145Percentage of NoFollow Links   Authority-0.1320536 %72 %
146Variations in H4 Tags   Relevancy-0.1310119 %79 %
147Number of Forms   Technology-0.1314367 %67 %
148Has Terms of Service   Trust-0.131140 %63 %
149Exact Matches in H2 Tags   Relevancy-0.136115 %71 %
150Has Contact Page   Trust-0.131162 %51 %
151Number of Social Pages   Authority-0.1310245 %70 %
152Has JSON-LD Schema Markup   Relevancy-0.131129 %67 %
153Body Tag Size Kilobytes   Size-0.132306279 %69 %
154Number of NoFollow External Links   Authority-0.1319325 %74 %
155Inline JavaScript Kilobytes   Size-0.131542288 %68 %
156Number of H4 Tags   Size-0.1316444 %76 %
157Search Result Has Schema   Other-0.13116 %53 %
158Variations making whole H1 Tags   Relevancy-0.121112 %70 %
159Variations in Em Tags   Relevancy-0.125111 %71 %
160Number of Questions In H3 Tags   Size-0.125114 %71 %
161Has US Phone Number   Trust-0.121138 %55 %
162Variations in Host Citations   Relevancy-0.12261716 %71 %
163Has Entities in H3 Tags   Relevancy-0.121149 %25 %
164Variations in Search Result URL Domain Name   Relevancy-0.12115 %48 %
165Head Size Kilobytes   Size-0.121482990 %67 %
166Has JSON-LD Website-0.121129 %55 %
167Number of Facebook Accounts   Authority-0.124132 %70 %
168Has JSON-LD ImageObject-0.121127 %59 %
169Has MicroData   Relevancy-0.121136 %60 %
170Variations in Search Result Summary   Relevancy-0.127389 %60 %
171Number of Email Addresses   Trust-0.1212235 %68 %
172Number of HTML Comments   Size-0.121172984 %69 %
173Has OpenGraph Image   Relevancy-0.121147 %64 %
174Inline CSS Kilobytes   Size-0.121281952 %71 %
175Search Result Summary Length   Size-0.1263427094 %58 %
176Has Schema Markup   Relevancy-0.121144 %61 %
177Has Meta Twitter Description   Authority-0.121136 %59 %
178Has MicroData name-0.121123 %61 %
179Number of Instagram Pages   Authority-0.129128 %67 %
180Has JSON-LD Organization-0.121128 %62 %
181Percentage of NoFollow Internal Links   Authority-0.1213325 %70 %
182Has JSON-LD WebPage-0.121128 %57 %
183Has Form   Technology-0.121165 %60 %
184Has OpenGraph Type   Relevancy-0.121156 %62 %
185Leading Variations in Meta Description   Relevancy-0.121111 %66 %
186Search Result Has Rating   Other-0.12116 %51 %
187LSI Words in H5 Tags   Relevancy-0.1218314 %46 %
188Has Meta Twitter Site   Authority-0.121121 %59 %
189Variations in Form Tags   Relevancy-0.125113 %69 %
190Variations in Value Attributes   Relevancy-0.1217213 %71 %
191Has Meta Twitter Card   Authority-0.121142 %56 %
192Flesch Kincaid Reading Grade Level   Other-0.1254385 %64 %
193Variations in OpenGraph Site Name   Relevancy-0.111113 %63 %
194Number of YouTube Accounts   Technology-0.111114 %70 %
195Has Meta Twitter Title   Authority-0.111138 %57 %
196Percentage of NoFollow External Links   Authority-0.1117323 %71 %
197Variations Making Whole Strong Tags   Relevancy-0.11417 %72 %
198Number of LinkedIn Pages   Authority-0.112123 %66 %
199Variations in Style Tags   Relevancy-0.11168615 %71 %
200Number of Questions In H4 Tags   Size-0.11317 %65 %