Measures 127544 SEO Factors

125822 Built-In SEO Factors

118194 On-page SEO Factors

7628 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

SEO Factor Class

Size SEO Factors ( 52918 )
Relevancy SEO Factors ( 51656 )
Other SEO Factors ( 22240 )
Local SEO Factors ( 7494 )
Technology SEO Factors ( 1599 )
Authority SEO Factors ( 163 )
Pay Per Click SEO Factors ( 29 )
Trust SEO Factors ( 15 )
Diversity SEO Factors ( 15 )
Easy SEO Factors ( 3 )
Performance SEO Factors ( 1 )

SEO Factor Type

Size SEO Factors ( 52914 )
Keywords SEO Factors ( 39945 )
Schema SEO Factors ( 22186 )
LSI SEO Factors ( 8263 )
Local SEO Factors ( 7495 )
Entities SEO Factors ( 3426 )
Other SEO Factors ( 1705 )
Backlinks SEO Factors ( 72 )
Social SEO Factors ( 58 )
Page Links SEO Factors ( 29 )
Structure SEO Factors ( 23 )
Meta SEO Factors ( 14 )
On Page SEO Factors ( 3 )
These counts reflect SEO factors with generated docs.
Not all SEO factors have that yet.

Compare Top SEO Factors By Month


Compare Months Before and After Helpful Content Update ( note the factors that exited at the bottom )
Data Documentation - As seen on Digitaleer.com

TOP SEO Factors for 2024-2     previous - today - next

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Unique LSI Words Used   Diversity-0.27117334691 %75 %
2Number of Distinct Entities Used   Diversity-0.26992785 %83 %
3Number of Referring Domains   Authority-0.2421585156 %86 %
4Number of Backlinks   Authority-0.23304104315756 %86 %
5Number of No Follow Backlinks   Authority-0.2320062376947 %84 %
6Number of Unique Variations Used   Diversity-0.221131090 %80 %
7Number of Factors Used   Diversity-0.22108021299 %90 %
8Number of Do Follow Backlinks   Authority-0.22188687241348 %85 %
9Variations in Body Tags   Relevancy-0.21548330289 %85 %
10Entities in the HTML Tag   Relevancy-0.2175913179 %87 %
11Entities in Sentences   Relevancy-0.2175612877 %87 %
12Variations in HTML Tags   Relevancy-0.21548330289 %85 %
13Number of Top 200 Shared Factors Used   Diversity-0.21554099 %92 %
14Variations in Div Tags   Relevancy-0.21171715287 %84 %
15Number of Top 100 Shared Factors Used   Diversity-0.21423099 %92 %
16Variations in P Tags   Relevancy-0.23484480 %82 %
17Search Result Domain is .com, .net, or .org   Other-0.2113 %62 %
18Number of Top 50 Shared Factors Used   Diversity-0.2201398 %85 %
19LSI Words in Sentences   Relevancy-0.2519384177 %87 %
20Variations in Sentences   Relevancy-0.26365184 %83 %
21Variations in H1, H2, and H3 Tags   Relevancy-0.234980 %82 %
22Variations in H1-H6 Tags   Relevancy-0.2371081 %83 %
23Search Result Domain is .com   Other-0.2113 %68 %
24Variations in A Tags   Relevancy-0.23943079 %83 %
25Entities in H2 Tags-0.1931759 %81 %
26Clean Text Kilobytes   Size-0.191181387 %92 %
27Variations in LI Tags   Relevancy-0.192652778 %83 %
28Variations in H1 and H2 Tags   Relevancy-0.1920578 %81 %
29Load Time Milliseconds   Performance-0.1921720169992 %89 %
30Entities in Title Tag   Relevancy-0.1911376 %78 %
31Unabridged Word Count   Size-0.1922142200192 %82 %
32Number of HTML Tags   Size-0.198235107992 %82 %
33Word Count   Size-0.1911471159492 %82 %
34Entities in H3 Tags-0.1844648 %81 %
35Term Frequency   Relevancy-0.185389 %83 %
36Variations in Distinct A Tag HREF Attributes   Relevancy-0.1813843877 %82 %
37Variations in H2 Tags   Relevancy-0.1819458 %80 %
38Variations in A Tag HREF Attributes   Relevancy-0.1813905876 %82 %
39Leading Variations in H1-H6 Tags   Relevancy-0.1810258 %79 %
40Number of Sentences   Size-0.1877412592 %82 %
41Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1810255 %78 %
42Number of Includes   Technology-0.18542586 %69 %
43Exact Matches in the HTML Tag   Relevancy-0.184781844 %75 %
44Number of P Tags   Size-0.186094186 %80 %
45Number of HTTPS Links   Authority-0.18140015289 %89 %
46Number of DoFollow Links   Authority-0.18107615089 %88 %
47Number of Images   Size-0.175483288 %79 %
48Number of Internal Links   Authority-0.17105713989 %89 %
49Number of Links   Authority-0.17154115690 %79 %
50Number of Heading Tags   Size-0.17672187 %80 %
51Number of Images with ALT Text   Size-0.174782282 %88 %
52Variations in Absolute URLs   Relevancy-0.172626612178 %89 %
53Variations in ALT Attributes   Relevancy-0.1777959 %79 %
54Number of Facebook Pages   Authority-0.1715366 %78 %
55Variations in Span Tags   Relevancy-0.17581363 %80 %
56Number of Questions   Size-0.17951173 %89 %
57Variations in Script Tags   Relevancy-0.1712548875 %80 %
58LSI Words in H2 Tags   Relevancy-0.161152265 %84 %
59Number of Absolute URLs   Authority-0.16284226991 %87 %
60Variations in Main Tags   Relevancy-0.1616537841 %80 %
61Number of H2 Tags   Size-0.1623778 %79 %
62Clean Keyword Density in the HTML Tag   Relevancy-0.1618583 %70 %
63Variations in Nav Tags   Relevancy-0.164382856 %79 %
64Variations in the Title Tag   Relevancy-0.164282 %68 %
65Has JSON-LD Schema Markup   Relevancy-0.161160 %76 %
66LSI Words in Title Tag   Relevancy-0.1616677 %81 %
67Page Size Kilobytes   Size-0.1696726192 %89 %
68Number of Questions In Headings   Size-0.168240 %85 %
69Variations in First 100 Words   Relevancy-0.163621181 %76 %
70Variations in H3 Tags   Relevancy-0.1619443 %78 %
71Number of Instagram Pages   Authority-0.1610246 %80 %
72Variations in the Canonical URL   Relevancy-0.16105265 %79 %
73Variations in Search Result URL Path   Relevancy-0.1613264 %77 %
74Exact Matches in H1-H6 Tags   Relevancy-0.1614231 %73 %
75Variations in Search Result Link Text   Relevancy-0.164290 %64 %
76Variations in Meta Description   Relevancy-0.165265 %70 %
77Number Of JSON-LD Types   Relevancy-0.162491665 %84 %
78Variations in Search Result Display URL   Relevancy-0.1625291 %72 %
79Variation Density in Top 30KB   Relevancy-0.15607576 %80 %
80Number of H3 Tags   Size-0.1538869 %76 %
81Entities in H1 Tags-0.1514264 %72 %
82Leading Variations in H2 Tags   Relevancy-0.155128 %85 %
83Number of CSS Includes   Technology-0.1517878 %70 %
84Number of External Links   Authority-0.154851686 %83 %
85Variations in OpenGraph Description   Relevancy-0.155258 %69 %
86Entities in Meta Description Tag   Relevancy-0.158363 %73 %
87Variations in H1 Tags   Relevancy-0.157270 %69 %
88Leading Variations in Title Tag   Relevancy-0.151140 %67 %
89Variations in OpenGraph Title   Relevancy-0.154264 %65 %
90Variations in Search Result URL   Relevancy-0.1536272 %70 %
91Leading Variations in H1 Tags   Relevancy-0.152135 %77 %
92Variations in Search Result Document File Name   Relevancy-0.156262 %74 %
93LSI Words in H3 Tags   Relevancy-0.151312157 %83 %
94Has Entities in H2 Tags   Relevancy-0.151160 %74 %
95Exact Matches in Sentences   Relevancy-0.1579431 %76 %
96Headings Has Question   Other-0.151140 %79 %
97Number of DoFollow External Links   Authority-0.15591484 %83 %
98Variations in Footer Tags   Relevancy-0.1515991142 %76 %
99TF/IDF   Relevancy-0.141175 %75 %
100Number of Twitter Accounts   Authority-0.145138 %77 %
101Number of Social Pages   Authority-0.1417472 %78 %
102Entities in H4 Tags-0.1413224 %76 %
103Variations in TITLE Attributes   Relevancy-0.14185848 %75 %
104Variations in Section Tags   Relevancy-0.141752544 %75 %
105Has Entities in H3 Tags   Relevancy-0.141149 %72 %
106Variation Count in Top 30KB   Relevancy-0.14128087178 %76 %
107Variations making whole A Tags   Relevancy-0.1432240 %71 %
108Variations Making Whole Span Tags   Relevancy-0.1416227 %75 %
109LSI Words in Meta Description Tag   Relevancy-0.14281263 %79 %
110Number of Questions In H2 Tags   Size-0.144126 %81 %
111Variations Making Whole LI Tags   Relevancy-0.1431134 %72 %
112Exact Matches in Title Tag   Relevancy-0.142127 %68 %
113Number of Facebook Accounts   Authority-0.148135 %77 %
114Number of LinkedIn Pages   Authority-0.147128 %76 %
115Percentage of DoFollow Internal Links   Authority-0.14957989 %81 %
116Number of Images without ALT Text   Size-0.145371267 %81 %
117Inline CSS Kilobytes   Size-0.141566170 %80 %
118Variations making whole H1, H2, and H3 Tags   Relevancy-0.142118 %68 %
119Number of Prices   Size-0.1420156676 %82 %
120Exact Matches in Top 30KB   Relevancy-0.1426228 %75 %
121Number of HTML Comments   Size-0.1432213978 %71 %
122Inline JavaScript Kilobytes   Size-0.145347789 %82 %
123Search Result Number of Dirs in Path   Other-0.144283 %69 %
124Number of US Phone Numbers   Trust-0.143881248 %77 %
125Number of Social Accounts   Authority-0.1412255 %80 %
126Variations making whole H1-H6 Tags   Relevancy-0.143120 %69 %
127Uses Schema specialty   Other-0.14112 %13 %
128LSI Words in H1 Tags   Relevancy-0.1424568 %77 %
129Leading Variations in H3 Tags   Relevancy-0.149120 %81 %
130Number of Questions In H3 Tags   Size-0.147118 %78 %
131Has Privacy Policy   Trust-0.131163 %77 %
132Variations in Strong Tags   Relevancy-0.1329335 %71 %
133Variations in Button Tags   Relevancy-0.136829 %73 %
134Number of JavaScript Includes   Technology-0.13401889 %69 %
135Uses JSON-LD State   Other-0.13114 %16 %
136Number of Nofollow Links   Authority-0.13466533 %77 %
137Number of Forms   Technology-0.1317366 %68 %
138Has Meta Charset   Technology-0.131182 %65 %
139Uses Schema postaladdress   Other-0.131122 %61 %
140Variations in I Tags   Relevancy-0.1395632 %68 %
141Uses Schema faqpage   Other-0.13119 %62 %
142Uses Schema name   Other-0.131169 %72 %
143Uses JSON-LD FAQPage   Other-0.13118 %62 %
144Uses JSON-LD url   Other-0.131151 %69 %
145Has FavIcon   Technology-0.131181 %74 %
146Average Words Per Sentence   Size-0.131753888 %75 %
147Variations in ID Attributes   Relevancy-0.1364216 %75 %
148Variations in the last 100 words   Relevancy-0.13384662 %75 %
149Variations in H4-H6 Tags   Relevancy-0.1311224 %71 %
150Number of H4 Tags   Size-0.1316444 %70 %
151Has Entities in H1 Tags   Relevancy-0.131166 %68 %
152Flesch Kincaid Reading Grade Level   Other-0.137396 %80 %
153Is Home Page   Other-0.131115 %46 %
154Uses Schema answer   Other-0.131110 %61 %
155Uses Schema addresslocality   Other-0.131122 %59 %
156Uses Schema country   Other-0.13112 %24 %
157Uses Schema aggregaterating   Other-0.131113 %62 %
158Has Schema Markup   Relevancy-0.131173 %74 %
159Uses JSON-LD Question   Other-0.13119 %60 %
160Uses JSON-LD Country   Other-0.13112 %24 %
161Uses JSON-LD name   Other-0.131160 %71 %
162Uses JSON-LD text   Other-0.13119 %60 %
163Uses Schema question   Other-0.131110 %63 %
164Uses JSON-LD Answer   Other-0.13119 %58 %
165Has US Phone Number   Trust-0.131147 %67 %
166Uses Schema state   Other-0.13113 %15 %
167Uses JSON-LD PostalAddress   Other-0.121119 %63 %
168Title Tag Has Entities   Relevancy-0.121177 %70 %
169Variations in Article Tags   Relevancy-0.121692030 %66 %
170Has Canonical URL   Authority-0.121180 %74 %
171Uses Schema addressregion   Other-0.121121 %57 %
172Exact Matches in H2 Tags   Relevancy-0.128117 %75 %
173Word Count in Meta Description   Size-0.12432173 %67 %
174Number of NoFollow External Links   Authority-0.12465322 %75 %
175Variations making whole H1 Tags   Relevancy-0.121111 %65 %
176Meta Description Length   Size-0.1225912573 %75 %
177Uses Schema listitem   Other-0.121148 %63 %
178Percentage of DoFollow Links   Authority-0.121009089 %82 %
179Exact Matches in A Tags   Relevancy-0.12153325 %74 %
180Variations in Class Attributes   Relevancy-0.12311829 %73 %
181Meta Description Tag Has Entities   Relevancy-0.121163 %66 %
182Is Pagination Page   Other-0.121119 %66 %
183Uses Schema streetaddress   Other-0.121121 %59 %
184Number of Email Addresses   Trust-0.1283446 %78 %
185Has Meta Robots   Other-0.121131 %60 %
186Uses Schema url   Other-0.121162 %67 %
187Number of H1 Tags   Size-0.125281 %67 %
188Variations in Figure Tags   Relevancy-0.1272715 %70 %
189Variations in H4 Tags   Relevancy-0.128119 %70 %
190Exact Matches in H1 Tags   Relevancy-0.122121 %67 %
191Uses JSON-LD addressRegion   Other-0.121118 %58 %
192Uses JSON-LD AggregateRating   Other-0.12119 %63 %
193Uses Schema text   Other-0.121113 %65 %
194Uses JSON-LD addressLocality   Other-0.121119 %59 %
195Uses JSON-LD itemListOrder   Other-0.12112 %14 %
196Uses JSON-LD City-0.12114 %22 %
197Has Apple Touch Icon   Technology-0.121151 %66 %
198Number of HREF Lang Tags   Size-0.1226210 %73 %
199Uses Schema itemlistorder   Other-0.12112 %13 %
200Has Entities in H4 Tags   Relevancy-0.121125 %67 %