Measures 56854 SEO Factors

55393 Built-In SEO Factors

49038 On-page SEO Factors

6355 Google Maps SEO Factors for Local SEO

1461 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]

1314 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 2023-02     previous

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-0.28602680 %81 %
2Number of Unique LSI Words Used   Diversity-0.2595336689 %59 %
3Number of Referring Domains   Authority-0.2559208763 %80 %
4Number of Top 100 Shared Factors Used   Diversity-0.25403098 %88 %
5Number of Backlinks   Authority-0.2522093361224263 %80 %
6Number of Unique Variations Used   Diversity-0.2433889 %76 %
7Number of Top 200 Shared Factors Used   Diversity-0.24534098 %86 %
8Number of No Follow Backlinks   Authority-0.2412690392455 %77 %
9Number of Top 50 Shared Factors Used   Diversity-0.24161398 %79 %
10Variations in Body Tags   Relevancy-0.24153022889 %85 %
11Number of Factors Used   Diversity-0.2338220398 %87 %
12Variations in HTML Tags   Relevancy-0.23153022989 %85 %
13Number of Do Follow Backlinks   Authority-0.2320824341150254 %80 %
14Variations in Sentences   Relevancy-0.221753780 %83 %
15Entities in Title Tag   Relevancy-0.227369 %78 %
16Variations in P Tags   Relevancy-0.222083477 %83 %
17Variations in Search Result Display URL   Relevancy-0.223286 %68 %
18Variations in H1-H6 Tags   Relevancy-0.2227878 %82 %
19Variations in H1, H2, and H3 Tags   Relevancy-0.2224778 %82 %
20Entities in Sentences   Relevancy-0.2243110572 %85 %
21Entities in the HTML Tag   Relevancy-0.2243411474 %86 %
22Variations in Div Tags   Relevancy-0.2249011686 %83 %
23Variations in LI Tags   Relevancy-0.21812076 %83 %
24Variations in Search Result Link Text   Relevancy-0.213285 %63 %
25Variations in A Tags   Relevancy-0.211012476 %82 %
26Variations in H1 and H2 Tags   Relevancy-0.2117575 %80 %
27Variations in Search Result URL Path   Relevancy-0.24256 %68 %
28Clean Keyword Density in the HTML Tag   Relevancy-0.210479 %69 %
29Term Frequency   Relevancy-0.24388 %83 %
30Load Time Milliseconds   Performance-0.214928179292 %78 %
31Entities in H2 Tags-0.229652 %80 %
32Clean Text Kilobytes   Size-0.21141289 %84 %
33Word Count   Size-0.193498143493 %78 %
34Variations in Distinct A Tag HREF Attributes   Relevancy-0.191653069 %82 %
35Variations in Script Tags   Relevancy-0.197826070 %80 %
36Variations in H2 Tags   Relevancy-0.1916450 %81 %
37Unabridged Word Count   Size-0.1927119237692 %80 %
38Variations in A Tag HREF Attributes   Relevancy-0.192304669 %82 %
39Exact Matches in the HTML Tag   Relevancy-0.193252249 %75 %
40Entities in H3 Tags-0.1920541 %79 %
41Variations in the Title Tag   Relevancy-0.194279 %70 %
42Variation Density in Top 30KB   Relevancy-0.186370 %75 %
43Leading Variations in H1-H6 Tags   Relevancy-0.187250 %79 %
44Variations in the Canonical URL   Relevancy-0.184258 %80 %
45Variations in Search Result URL   Relevancy-0.184261 %66 %
46Variations in First 100 Words   Relevancy-0.1822874 %74 %
47Variations in Absolute URLs   Relevancy-0.182805971 %85 %
48Number of Sentences   Size-0.1843411592 %80 %
49Leading Variations in H1, H2, and H3 Tags   Relevancy-0.186247 %78 %
50Number of HTML Tags   Size-0.182295103693 %81 %
51Variations in ALT Attributes   Relevancy-0.181691053 %79 %
52Number of HTTPS Links   Authority-0.1844915489 %79 %
53Number of Questions   Size-0.18351070 %83 %
54Variations in Meta Description   Relevancy-0.1716259 %74 %
55Number of Internal Links   Authority-0.1743714090 %81 %
56Number of Links   Authority-0.1745015690 %75 %
57Variations in H3 Tags   Relevancy-0.1710336 %77 %
58Number of DoFollow Links   Authority-0.1744515190 %79 %
59Page Size Kilobytes   Size-0.1757922693 %81 %
60Number of Heading Tags   Size-0.17412188 %79 %
61Entities in H1 Tags-0.175257 %74 %
62Number Of JSON-LD Types   Relevancy-0.17541159 %72 %
63Has JSON-LD Schema Markup   Relevancy-0.171155 %68 %
64Variations in Span Tags   Relevancy-0.17371059 %79 %
65Variations in Nav Tags   Relevancy-0.171362148 %76 %
66Search Result Domain is .com, .net, or .org   Other-0.17113 %58 %
67Search Result Domain is .com   Other-0.17113 %61 %
68Number of P Tags   Size-0.171293787 %80 %
69Number of Images   Size-0.17833088 %76 %
70Variations in Main Tags   Relevancy-0.166455536 %79 %
71Variations in Search Result Document File Name   Relevancy-0.164256 %68 %
72Number of H2 Tags   Size-0.1614776 %77 %
73Entities in Meta Description Tag   Relevancy-0.1630354 %73 %
74Variations in H1 Tags   Relevancy-0.164267 %68 %
75Number of Instagram Pages   Authority-0.1615245 %73 %
76Number of External Links   Authority-0.16491685 %71 %
77Number of Facebook Pages   Authority-0.165267 %69 %
78LSI Words in Sentences   Relevancy-0.16247168565 %85 %
79Leading Variations in H1 Tags   Relevancy-0.161133 %69 %
80Variations in OpenGraph Description   Relevancy-0.1616253 %70 %
81Number of Images with ALT Text   Size-0.16672083 %81 %
82Number of Absolute URLs   Authority-0.1660123592 %81 %
83Leading Variations in Title Tag   Relevancy-0.161136 %66 %
84Variations in Footer Tags   Relevancy-0.1646735 %75 %
85Has Entities in H2 Tags   Relevancy-0.161152 %73 %
86Number of CSS Includes   Technology-0.1614880 %64 %
87Exact Matches in H1-H6 Tags   Relevancy-0.1611234 %72 %
88Number of DoFollow External Links   Authority-0.15481584 %68 %
89TF/IDF   Relevancy-0.151166 %74 %
90Inline JavaScript Kilobytes   Size-0.152466189 %78 %
91Variations in OpenGraph Title   Relevancy-0.153260 %66 %
92Variations making whole A Tags   Relevancy-0.155231 %68 %
93Number of Includes   Technology-0.15412387 %64 %
94Exact Matches in Sentences   Relevancy-0.1533435 %76 %
95Variation Count in Top 30KB   Relevancy-0.15782678 %70 %
96LSI Words in Title Tag   Relevancy-0.1514564 %81 %
97Has Privacy Policy   Trust-0.151160 %74 %
98Uses Schema name   Other-0.151164 %63 %
99Number of Questions In Headings   Size-0.156236 %77 %
100Number of Twitter Accounts   Authority-0.153140 %66 %
101Search Result Number of Dirs in Path   Other-0.153281 %59 %
102Number of H3 Tags   Size-0.1516866 %75 %
103Flesch Kincaid Reading Grade Level   Other-0.156393 %70 %
104Leading Variations in H2 Tags   Relevancy-0.143123 %76 %
105Exact Matches in Title Tag   Relevancy-0.142132 %69 %
106Variations in TITLE Attributes   Relevancy-0.1435743 %74 %
107Variations in Section Tags   Relevancy-0.14661739 %78 %
108Number of Social Pages   Authority-0.1419472 %70 %
109Variations Making Whole Span Tags   Relevancy-0.1410122 %77 %
110Number of Social Accounts   Authority-0.144254 %72 %
111Number of Questions In H2 Tags   Size-0.144122 %72 %
112Has FavIcon   Technology-0.141178 %72 %
113Percentage of DoFollow Internal Links   Authority-0.14947989 %71 %
114Exact Matches in A Tags   Relevancy-0.1433328 %73 %
115Has Schema Markup   Relevancy-0.141170 %64 %
116Variations making whole H1-H6 Tags   Relevancy-0.142119 %70 %
117Exact Matches in Top 30KB   Relevancy-0.1423330 %68 %
118Uses Schema question   Other-0.14117 %61 %
119Uses Schema answer   Other-0.14117 %60 %
120Title Tag Has Entities   Relevancy-0.141169 %68 %
121Number of Nofollow Links   Authority-0.1460533 %70 %
122Number of Facebook Accounts   Authority-0.142132 %70 %
123Uses Schema breadcrumblist   Other-0.141143 %63 %
124Uses JSON-LD name   Other-0.141147 %68 %
125Uses Schema url   Other-0.141158 %57 %
126Variations in the last 100 words   Relevancy-0.1411452 %72 %
127Uses Schema listitem   Other-0.141143 %62 %
128Variations Making Whole LI Tags   Relevancy-0.143127 %69 %
129Variations making whole H1, H2, and H3 Tags   Relevancy-0.142117 %70 %
130Variations in Meta Twitter Description   Relevancy-0.144120 %63 %
131Variations in I Tags   Relevancy-0.1331532 %70 %
132Uses Schema faqpage   Other-0.13117 %62 %
133Number of Prices   Size-0.1316147575 %77 %
134Number Of Claimed Brands   Other-0.138222 %64 %
135Entities in H4 Tags-0.1314221 %79 %
136Leading Variations in H3 Tags   Relevancy-0.133115 %71 %
137Number of NoFollow External Links   Authority-0.1323321 %72 %
138Title Word Count   Size-0.1313890 %62 %
139Number of LinkedIn Pages   Authority-0.133125 %66 %
140Uses JSON-LD Answer   Other-0.13116 %60 %
141Uses JSON-LD Question   Other-0.13116 %61 %
142Uses JSON-LD text   Other-0.13116 %63 %
143Uses JSON-LD publishingPrinciples   Other-0.13112 %17 %
144Uses JSON-LD FAQPage   Other-0.13116 %61 %
145Has Entities in H3 Tags   Relevancy-0.131143 %72 %
146LSI Words in H2 Tags   Relevancy-0.13751952 %82 %
147Has Entities in H1 Tags   Relevancy-0.131158 %66 %
148Exact Matches in H2 Tags   Relevancy-0.136118 %74 %
149Uses Schema person   Other-0.131122 %52 %
150Number of Images without ALT Text   Size-0.13341168 %77 %
151Headings Has Question   Other-0.131136 %72 %
152Inline CSS Kilobytes   Size-0.131205267 %71 %
153Meta Description Length   Size-0.1338912269 %67 %
154Uses Schema publishingprinciples   Other-0.13112 %17 %
155Is Purchase Page   Other-0.131149 %64 %
156Variations making whole H1 Tags   Relevancy-0.131112 %67 %
157Average Words Per Sentence   Size-0.131163490 %62 %
158Uses JSON-LD ListItem   Other-0.131136 %61 %
159Number of HREF Lang Tags   Size-0.138210 %73 %
160Variations in Article Tags   Relevancy-0.131051730 %65 %
161Number of HTML Comments   Size-0.131433479 %71 %
162Number of US Phone Numbers   Trust-0.134821343 %69 %
163Title Length   Size-0.13885390 %61 %
164Uses Schema pricecurrency   Other-0.121110 %35 %
165Variations in H4-H6 Tags   Relevancy-0.129219 %72 %
166Uses JSON-LD BreadcrumbList   Other-0.121136 %62 %
167Uses JSON-LD url   Other-0.121144 %59 %
168Variations in B Tags   Relevancy-0.1214315 %67 %
169Number of JavaScript Includes   Technology-0.12271689 %64 %
170Has Canonical URL   Authority-0.121177 %69 %
171Variations in Meta Twitter Content   Relevancy-0.122123 %58 %
172Uses Schema howto   Other-0.12112 %12 %
173Variations in Strong Tags   Relevancy-0.1210228 %70 %
174Meta Description Tag Has Entities   Relevancy-0.121154 %64 %
175Variations in Button Tags   Relevancy-0.121916 %73 %
176Variations in HTML Comment Tags   Relevancy-0.1234410 %70 %
177Uses JSON-LD jobTitle   Other-0.12113 %33 %
178Has Terms of Service   Trust-0.121137 %66 %
179Uses Schema text   Other-0.121111 %64 %
180Title Has Sales Words   Other-0.121113 %60 %
181Word Count in Meta Description   Size-0.12702070 %67 %
182Uses Schema howtostep   Other-0.12112 %12 %
183Uses Schema headline   Other-0.121122 %47 %
184Uses Schema description   Other-0.121149 %52 %
185Uses JSON-LD headline   Other-0.121118 %49 %
186Uses JSON-LD HowTo   Other-0.12112 %12 %
187Has Meta Charset   Technology-0.121182 %58 %
188Title Has Sentiment Words   Other-0.121123 %57 %
189Search Result Uses HTTPS   Other-0.121190 %69 %
190Percentage of DoFollow Links   Authority-0.121009090 %70 %
191Uses JSON-LD HowToStep   Other-0.12112 %12 %
192Percentage of NoFollow Links   Authority-0.1219330 %69 %
193Uses Schema organization   Other-0.121135 %60 %
194Number of Forms   Technology-0.1216367 %67 %
195Uses JSON-LD Organization   Other-0.121130 %60 %
196Has Meta Viewport   Technology-0.121188 %65 %
197Uses Schema datepublished   Other-0.121140 %52 %
198Uses Schema product   Other-0.12118 %43 %
199Uses Schema aggregaterating   Other-0.12118 %51 %
200Uses JSON-LD description   Other-0.121141 %54 %