Measures 149784 SEO Factors

148062 Built-In SEO Factors

138885 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 2020-4     previous - today - next

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1LSI Words in Sentences   Relevancy-0.27370447674 %59 %
2Number of Distinct Entities Used   Diversity-0.26672479 %47 %
3Variations in Body Tags   Relevancy-0.2473913274 %94 %
4Variations in Div Tags   Relevancy-0.23105010678 %93 %
5Variations in HTML Tags   Relevancy-0.23129514477 %94 %
6Entities in Sentences   Relevancy-0.2393910477 %47 %
7Variations in A Tags   Relevancy-0.231272475 %94 %
8Variations in A Tag HREF Attributes   Relevancy-0.222904472 %93 %
9Term Frequency   Relevancy-0.228577 %93 %
10Number of Factors Used   Diversity-0.2220111380 %91 %
11Variations in H1-H6 Tags   Relevancy-0.2151773 %92 %
12Entities in the HTML Tag   Relevancy-0.21151035679 %47 %
13Variations in H1, H2, and H3 Tags   Relevancy-0.2144672 %93 %
14Variations in H1 and H2 Tags   Relevancy-0.230470 %92 %
15Entities in Title Tag   Relevancy-0.28368 %44 %
16Variations in P Tags   Relevancy-0.21892969 %92 %
17Variations in Search Result Display URL   Relevancy-0.193281 %79 %
18Variations in Search Result URL   Relevancy-0.194263 %79 %
19Variations in Search Result Link Text   Relevancy-0.193280 %79 %
20Clean Text Kilobytes   Size-0.19431079 %85 %
21LSI Words in H2 Tags   Relevancy-0.19611563 %58 %
22LSI Words in Title Tag   Relevancy-0.1915684 %54 %
23Body Tag Size Kilobytes   Size-0.192757175 %86 %
24Variations in Search Result URL Path   Relevancy-0.194262 %77 %
25Entities in H2 Tags-0.1923449 %46 %
26Exact Matches in Body Tag   Relevancy-0.181771235 %91 %
27Variations in Absolute URLs   Relevancy-0.182584567 %93 %
28Variations in Sentences   Relevancy-0.18851668 %91 %
29Variations in H2 Tags   Relevancy-0.1819345 %91 %
30Variations in LI Tags   Relevancy-0.18751564 %93 %
31Entities in H3 Tags-0.1842541 %47 %
32LSI Words in Meta Description Tag   Relevancy-0.18351067 %56 %
33Variations in the Canonical URL   Relevancy-0.185251 %82 %
34Variations in ALT Attributes   Relevancy-0.1843752 %88 %
35LSI Words in H3 Tags   Relevancy-0.17991657 %56 %
36Variations in Search Result Document File Name   Relevancy-0.174259 %71 %
37Variations in Script Tags   Relevancy-0.172842857 %93 %
38Leading Variations in H1-H6 Tags   Relevancy-0.1726250 %87 %
39Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1725248 %86 %
40Unabridged Word Count   Size-0.177939157079 %87 %
41Keywords in pages top 10 most used phrases-0.175261 %87 %
42Variations in First 100 Words   Relevancy-0.1722764 %83 %
43Word Count   Size-0.175952125379 %86 %
44Variations in H1 Tags   Relevancy-0.1611261 %82 %
45Number of HTML Tags   Size-0.16238669680 %86 %
46Exact Matches in the HTML Tag   Relevancy-0.16221631 %90 %
47Variations in Span Tags   Relevancy-0.1629851 %89 %
48Entities in Meta Description Tag   Relevancy-0.169355 %44 %
49Entities in H1 Tags-0.168256 %43 %
50Keywords in pages top 5 most used phrases-0.163154 %86 %
51Number of P Tags   Size-0.162403675 %86 %
52Page Size Kilobytes   Size-0.1638011079 %87 %
53Variations in the Title Tag   Relevancy-0.164268 %80 %
54Number of Questions   Size-0.1530665 %83 %
55Variations in Meta Description   Relevancy-0.156253 %86 %
56Keywords in pages top 3 most used phrases-0.153146 %84 %
57Number of HTTPS Links   Authority-0.1539910774 %84 %
58TF/IDF   Relevancy-0.151161 %81 %
59LSI Words in H1 Tags   Relevancy-0.1527674 %52 %
60Exact Matches in H1-H6 Tags   Relevancy-0.1511125 %89 %
61Number of Sentences   Size-0.152033876 %84 %
62Variations in H3 Tags   Relevancy-0.1516334 %89 %
63Number of Questions In Headings   Size-0.157235 %82 %
64Entities in H4 Tags-0.159223 %46 %
65Number of Heading Tags   Size-0.14521877 %84 %
66Leading Variations in H1 Tags   Relevancy-0.1411132 %78 %
67Has Entities in H1 Tags   Relevancy-0.141156 %40 %
68Number of Links   Authority-0.1440411476 %82 %
69Exact Matches in A Tags   Relevancy-0.1454323 %87 %
70Leading Variations in Title Tag   Relevancy-0.141133 %77 %
71Number of Internal Links   Authority-0.143879975 %82 %
72Search Result Uses HTTPS   Other-0.141178 %76 %
73Title Tag Has Entities   Relevancy-0.141166 %38 %
74Variations in Nav Tags   Relevancy-0.142071239 %87 %
75Leading Variations in H2 Tags   Relevancy-0.1411123 %87 %
76Variations making whole A Tags   Relevancy-0.148234 %85 %
77Number of DoFollow Links   Authority-0.1439610876 %81 %
78Has Entities in H2 Tags   Relevancy-0.141150 %42 %
79Number of Images with ALT Text   Size-0.141001569 %81 %
80Variations in OpenGraph Description   Relevancy-0.145241 %82 %
81Number of Absolute URLs   Authority-0.1441411277 %82 %
82Variations in Search Result Summary   Relevancy-0.146262 %67 %
83Number of Images   Size-0.131142375 %79 %
84Variations in Footer Tags   Relevancy-0.1358632 %83 %
85LSI Words in H4 Tags   Relevancy-0.1337737 %52 %
86Variations in OpenGraph Title   Relevancy-0.133146 %78 %
87Number of H3 Tags   Size-0.1327758 %84 %
88Variations in Article Tags   Relevancy-0.131782031 %78 %
89Exact Matches in Title Tag   Relevancy-0.132121 %81 %
90Variations Making Whole Span Tags   Relevancy-0.139119 %83 %
91Variations in Main Tags   Relevancy-0.133603723 %84 %
92Number of Questions In H2 Tags   Size-0.133119 %78 %
93Variations in the last 100 words   Relevancy-0.1324451 %83 %
94Number of H2 Tags   Size-0.1314562 %85 %
95Has Entities in H3 Tags   Relevancy-0.131141 %42 %
96Variations in Class Attributes   Relevancy-0.1393626 %81 %
97Search Result Link Text Length   Size-0.13614785 %63 %
98Ahrefs Referring Class C Addresses   Authority-0.1311452429 %17 %
99Has Canonical URL   Authority-0.131163 %73 %
100Headings Has Question   Other-0.131135 %77 %
101Ahrefs Referring IP Addresses   Authority-0.1330013929 %17 %
102Ahrefs Referring Domains   Authority-0.131597010829 %17 %
103Number of Questions In H3 Tags   Size-0.134114 %77 %
104Average Words Per Sentence   Size-0.135263977 %65 %
105Inline JavaScript Kilobytes   Size-0.121472373 %85 %
106Search Result Summary Length   Size-0.1236518984 %66 %
107Variations making whole H1-H6 Tags   Relevancy-0.1211116 %76 %
108Variations in Section Tags   Relevancy-0.12621432 %85 %
109Exact Matches in H1 Tags   Relevancy-0.122118 %80 %
110Variations in H4-H6 Tags   Relevancy-0.129220 %83 %
111Variations in Strong Tags   Relevancy-0.1212330 %83 %
112Meta Description Tag Has Entities   Relevancy-0.121155 %41 %
113Ahrefs Text Backlinks   Authority-0.12525332629829 %17 %
114Ahrefs Backlinks   Authority-0.12527028630929 %17 %
115Ahrefs Referring Pages   Authority-0.12527027630929 %17 %
116Number of Nofollow Links   Authority-0.1282632 %82 %
117Variations in TITLE Attributes   Relevancy-0.1283634 %86 %
118Ahrefs Rank   Authority-0.1251738 %14 %
119Number of External Links   Authority-0.121001569 %77 %
120Variations making whole H1, H2, and H3 Tags   Relevancy-0.1211115 %74 %
121Ahrefs NoFollow Backlinks   Authority-0.128302963624 %17 %
122Load Time Milliseconds   Performance-0.1259022211674 %69 %
123Variations in H4 Tags   Relevancy-0.128116 %83 %
124Search Result Number of Dirs in Path   Other-0.124273 %60 %
125Variations in Search Result URL Domain Name   Relevancy-0.12114 %55 %
126Leading Variations in H3 Tags   Relevancy-0.1218116 %81 %
127DomDetailer Majestic IPs   Authority-0.122415632473455 %22 %
128Variations in Meta Twitter Description   Relevancy-0.125128 %77 %
129DomDetailer Majestic Referring Subnets   Authority-0.1247121651255 %22 %
130DomDetailer Moz PA   Authority-0.12692455 %21 %
131DomDetailer Majestic Referring Domains   Authority-0.12148937214532555 %22 %
132Variations Making Whole LI Tags   Relevancy-0.126124 %79 %
133Variations in Meta Twitter Content   Relevancy-0.122130 %75 %
134Variations in ID Attributes   Relevancy-0.117112 %83 %
135LSI Words in H5 Tags   Relevancy-0.1123316 %48 %
136Number of NoFollow External Links   Authority-0.1173322 %80 %
137Variations making whole H1 Tags   Relevancy-0.111110 %73 %
138Exact Matches in Sentences   Relevancy-0.1124115 %88 %
139Search Result Has Schema   Other-0.11116 %65 %
140DomDetailer Majestic CF   Authority-0.11561853 %21 %
141Inline CSS Kilobytes   Size-0.111141945 %82 %
142Ahrefs Dofollow Backlinks   Authority-0.11486840574624 %17 %
143Has Entities in H4 Tags   Relevancy-0.111124 %41 %
144Percentage of NoFollow Links   Authority-0.1124430 %76 %
145DomDetailer Moz Rank   Authority-0.118354 %21 %
146Title Has Sentiment Words   Other-0.111116 %74 %
147DomDetailer Majestic Links   Authority-0.11105504700666902455 %21 %
148Title Has Sales Words   Other-0.111115 %73 %
149Variations in Aside Tags   Relevancy-0.1159515 %76 %
150Variations in I Tags   Relevancy-0.1132219 %81 %
151Exact Matches in H2 Tags   Relevancy-0.1110111 %88 %
152Number of HREF Lang Tags   Size-0.1120210 %77 %
153Word Count in Meta Description   Size-0.111111860 %81 %
154Search Result URL Length   Size-0.111335479 %50 %
155Ahrefs Has NoFollow Backlinks   Authority-0.111023 %17 %
156Percentage of NoFollow External Links   Authority-0.1121220 %75 %
157DomDetailer Moz DA   Authority-0.11872354 %21 %
158Number of DoFollow External Links   Authority-0.11421267 %77 %
159Variations in Value Attributes   Relevancy-0.1124111 %78 %
160Keywords in pages most used phrase-0.111123 %76 %
161Variations in Form Tags   Relevancy-0.117112 %80 %
162Ahrefs Has Backlinks   Authority-0.11029 %17 %
163Exact Matches in Meta Description   Relevancy-0.12112 %85 %
164Meta Description Length   Size-0.166210959 %79 %
165Variations in B Tags   Relevancy-0.18212 %78 %
166Number of H4 Tags   Size-0.115439 %79 %
167Number of Forms   Technology-0.119256 %72 %
168Has Privacy Policy   Trust-0.11146 %74 %
169Has Copyright   Trust-0.11160 %65 %
170Search Result Has Rating   Other-0.1115 %63 %
171Ahrefs Has Text Backlinks   Authority-0.11129 %17 %
172Has FavIcon   Technology-0.11163 %70 %
173Variations in Host Citations   Relevancy-0.1136413 %80 %
174Flesch Kincaid Reading Ease   -0.11618879 %63 %
175DomDetailer Majestic TF   Authority-0.1651546 %20 %
176Flesch Kincaid Reading Grade Level   Other-0.17274 %69 %
177Title Word Count   Size-0.114774 %65 %
178Has OpenGraph Type   Relevancy-0.11146 %66 %
179Head Size Kilobytes   Size-0.1862465 %85 %
180Ahrefs Has Dofollow Backlinks   Authority-0.11024 %16 %
181DomDetailer Facebook Shares   Authority-0.155020056614379951 %22 %
182Variations in Button Tags   Relevancy-0.14914 %78 %
183Has Meta Description   Relevancy-0.11158 %73 %
184Leading Variations in H4-H6 Tags   Relevancy-0.1419 %78 %
185Variations Making Whole Strong Tags   Relevancy-0.1517 %78 %
186Has JSON-LD Organization-0.11124 %68 %
187Has OpenGraph Image   Relevancy-0.11140 %69 %
188Search Result Link Text Has Year   Other-0.11110 %62 %
189DomDetailer Moz Links   Authority-0.177872942842296655 %22 %
190Has Form   Technology-0.11157 %67 %
191Has JSON-LD ImageObject-0.11125 %64 %
192Number of Social Accounts   Authority-0.19241 %71 %
193Variations in Search Result URL Host Name   Relevancy-0.1113 %68 %
194Percentage of DoFollow Internal Links   Authority-0.1946372 %70 %
195Has Terms of Service   Trust-0.11133 %72 %
196Number of US Phone Numbers   Trust-0.1172529 %74 %
197Percentage of DoFollow Links   Authority-0.11007270 %67 %
198Has HREF Lang   Technology-0.11111 %69 %
199Has Meta Twitter Description   Authority-0.11131 %65 %
200Variations in Figure Tags   Relevancy-0.177410 %74 %