Measures 125727 SEO Factors

124005 Built-In SEO Factors

116409 On-page SEO Factors

7596 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 ( 52547 )
Relevancy SEO Factors ( 51008 )
Other SEO Factors ( 21881 )
Local SEO Factors ( 7463 )
Technology SEO Factors ( 1599 )
Authority SEO Factors ( 163 )
Pay Per Click SEO Factors ( 29 )
Diversity SEO Factors ( 15 )
Trust SEO Factors ( 15 )
Easy SEO Factors ( 3 )
Performance SEO Factors ( 1 )

SEO Factor Type

Size SEO Factors ( 52543 )
Keywords SEO Factors ( 39455 )
Schema SEO Factors ( 21827 )
LSI SEO Factors ( 8148 )
Local SEO Factors ( 7464 )
Entities SEO Factors ( 3383 )
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 2024-04     previous

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-0.26138331688 %80 %
2Number of Distinct Entities Used   Diversity-0.24773281 %91 %
3Number of Unique Variations Used   Diversity-0.22411187 %86 %
4Search Result Domain is .com, .net, or .org   Other-0.22114 %73 %
5Number of Referring Domains   Authority-0.2265028758 %79 %
6Variations in Body Tags   Relevancy-0.228742864986 %89 %
7Variations in HTML Tags   Relevancy-0.228742864986 %89 %
8Number of Top 50 Shared Factors Used   Diversity-0.21171397 %87 %
9Number of Top 100 Shared Factors Used   Diversity-0.21403198 %91 %
10Number of Backlinks   Authority-0.212194135620458 %80 %
11Entities in the HTML Tag   Relevancy-0.2155415977 %91 %
12Entities in Sentences   Relevancy-0.2155015676 %91 %
13Search Result Domain is .com   Other-0.21114 %78 %
14Number of Top 200 Shared Factors Used   Diversity-0.21544298 %91 %
15Variations in Div Tags   Relevancy-0.213534725783 %86 %
16Load Time Milliseconds   Performance-0.250019171190 %91 %
17Number of Factors Used   Diversity-0.255620798 %90 %
18LSI Words in Sentences   Relevancy-0.2550880976 %90 %
19Number of No Follow Backlinks   Authority-0.2155666106150 %79 %
20Variations in H1, H2, and H3 Tags   Relevancy-0.2131976 %85 %
21Variations in Sentences   Relevancy-0.234346281 %86 %
22Variations in A Tags   Relevancy-0.242604377 %87 %
23Variations in P Tags   Relevancy-0.223545276 %86 %
24Variations in H1-H6 Tags   Relevancy-0.21731077 %85 %
25Entities in Title Tag   Relevancy-0.28372 %86 %
26Number of Do Follow Backlinks   Authority-0.22038470516549 %79 %
27Variations in LI Tags   Relevancy-0.222453575 %87 %
28Variations in H1 and H2 Tags   Relevancy-0.268674 %84 %
29Entities in H2 Tags-0.1939856 %88 %
30Number of HTML Tags   Size-0.194018102190 %84 %
31Clean Text Kilobytes   Size-0.191121484 %89 %
32LSI Words in Title Tag   Relevancy-0.1916676 %87 %
33Unabridged Word Count   Size-0.1921640202989 %83 %
34Number of Includes   Technology-0.19472485 %73 %
35Term Frequency   Relevancy-0.196386 %86 %
36Word Count   Size-0.1913832155489 %83 %
37Variations in the Title Tag   Relevancy-0.1814278 %74 %
38Leading Variations in H1-H6 Tags   Relevancy-0.1822255 %81 %
39Clean Keyword Density in the HTML Tag   Relevancy-0.18190680 %76 %
40Variations in Search Result Link Text   Relevancy-0.188287 %69 %
41Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1817252 %80 %
42Variations in H2 Tags   Relevancy-0.1859455 %83 %
43Variations in A Tag HREF Attributes   Relevancy-0.1819336572 %87 %
44Variation Density in Top 30KB   Relevancy-0.18281474 %81 %
45Variations in Distinct A Tag HREF Attributes   Relevancy-0.1811434373 %87 %
46Variations in Search Result Display URL   Relevancy-0.188288 %73 %
47Variations in Search Result URL Path   Relevancy-0.186260 %79 %
48Number of HTTPS Links   Authority-0.1743314687 %88 %
49Number of Sentences   Size-0.17112312289 %83 %
50Number of Links   Authority-0.17104814887 %82 %
51Variations in Script Tags   Relevancy-0.172726615872 %84 %
52Variations in ALT Attributes   Relevancy-0.17272954 %81 %
53Number of DoFollow Links   Authority-0.17104714587 %88 %
54Entities in H3 Tags-0.1730747 %88 %
55Variations in Span Tags   Relevancy-0.175561561 %84 %
56Number of Internal Links   Authority-0.1742613187 %87 %
57LSI Words in H2 Tags   Relevancy-0.171222163 %87 %
58Number of P Tags   Size-0.173284183 %82 %
59Number of Images   Size-0.173033084 %82 %
60Variations in Main Tags   Relevancy-0.172005215240 %84 %
61Variations in H1 Tags   Relevancy-0.1711266 %75 %
62Has JSON-LD Schema Markup   Relevancy-0.171156 %77 %
63Variations in Nav Tags   Relevancy-0.1763035055 %83 %
64Number of Heading Tags   Size-0.17602184 %81 %
65Number of Absolute URLs   Authority-0.1781425989 %85 %
66Page Size Kilobytes   Size-0.1776826190 %84 %
67Entities in H1 Tags-0.1714262 %80 %
68Variations in First 100 Words   Relevancy-0.161731075 %79 %
69Number of Questions   Size-0.16531070 %85 %
70Number of Facebook Pages   Authority-0.169265 %79 %
71Variations in Absolute URLs   Relevancy-0.1678609874 %89 %
72Variations in the Canonical URL   Relevancy-0.1638260 %83 %
73Number of Images with ALT Text   Size-0.162272180 %87 %
74Number of H2 Tags   Size-0.1631775 %81 %
75Variations in H3 Tags   Relevancy-0.1664441 %80 %
76Variations in Search Result Document File Name   Relevancy-0.169259 %73 %
77Leading Variations in Title Tag   Relevancy-0.161139 %70 %
78LSI Words in H1 Tags   Relevancy-0.1623566 %83 %
79Variations in OpenGraph Title   Relevancy-0.1610260 %72 %
80Leading Variations in H1 Tags   Relevancy-0.162134 %74 %
81Number of CSS Includes   Technology-0.1619877 %69 %
82Variations in OpenGraph Description   Relevancy-0.1538254 %76 %
83Variations in Footer Tags   Relevancy-0.1527961843 %81 %
84Number of Instagram Pages   Authority-0.1530243 %80 %
85Search Result Number of Dirs in Path   Other-0.154282 %78 %
86Variation Count in Top 30KB   Relevancy-0.1552134276 %80 %
87Variations in Meta Description   Relevancy-0.1541260 %74 %
88Number Of JSON-LD Types   Relevancy-0.151361461 %83 %
89Exact Matches in the HTML Tag   Relevancy-0.155231335 %73 %
90Number of JavaScript Includes   Technology-0.15331686 %72 %
91Percentage of DoFollow Internal Links   Authority-0.15937686 %80 %
92Variations Making Whole Span Tags   Relevancy-0.1522226 %78 %
93Has Meta Charset   Technology-0.151178 %70 %
94Variations Making Whole LI Tags   Relevancy-0.156134 %75 %
95LSI Words in H3 Tags   Relevancy-0.151032155 %84 %
96Number of External Links   Authority-0.15661884 %81 %
97Variations making whole A Tags   Relevancy-0.1535240 %75 %
98Variations in Section Tags   Relevancy-0.159882942 %78 %
99Number of H3 Tags   Size-0.1528966 %78 %
100Variations in Search Result URL   Relevancy-0.1515269 %71 %
101Variations in TITLE Attributes   Relevancy-0.15279845 %79 %
102Number of DoFollow External Links   Authority-0.15561683 %81 %
103TF/IDF   Relevancy-0.151173 %77 %
104Flesch Kincaid Reading Grade Level   Other-0.148395 %85 %
105Number of Questions In Headings   Size-0.1411239 %82 %
106Has FavIcon   Technology-0.141178 %78 %
107Entities in Meta Description Tag   Relevancy-0.1410358 %80 %
108Variations in the last 100 words   Relevancy-0.14175559 %78 %
109Number of HTML Comments   Size-0.143783675 %76 %
110Leading Variations in H2 Tags   Relevancy-0.147127 %83 %
111Number of LinkedIn Pages   Authority-0.143133 %75 %
112Inline JavaScript Kilobytes   Size-0.143447987 %80 %
113Has Entities in H2 Tags   Relevancy-0.141156 %78 %
114Has Privacy Policy   Trust-0.141164 %78 %
115Uses Schema name   Other-0.141163 %70 %
116Inline CSS Kilobytes   Size-0.141876167 %80 %
117Number of Twitter Accounts   Authority-0.144141 %78 %
118Number of Prices   Size-0.1410476474 %80 %
119Number of US Phone Numbers   Trust-0.142381047 %80 %
120Has Schema Markup   Relevancy-0.141167 %74 %
121Number of Social Pages   Authority-0.1438470 %79 %
122LSI Words in Meta Description Tag   Relevancy-0.14371159 %83 %
123Average Words Per Sentence   Size-0.142323886 %78 %
124Has Entities in H1 Tags   Relevancy-0.141162 %77 %
125Leading Variations in H3 Tags   Relevancy-0.1410121 %81 %
126Percentage of DoFollow Links   Authority-0.141008887 %83 %
127Search Result Host Length   Size-0.14261889 %67 %
128Variations making whole H1, H2, and H3 Tags   Relevancy-0.133117 %70 %
129Variations in Strong Tags   Relevancy-0.1366333 %77 %
130Exact Matches in H1-H6 Tags   Relevancy-0.1311122 %75 %
131Variations making whole H1-H6 Tags   Relevancy-0.133120 %71 %
132Number of Questions In H2 Tags   Size-0.134124 %80 %
133Number of Images without ALT Text   Size-0.13511064 %81 %
134Title Tag Has Entities   Relevancy-0.131173 %79 %
135Number of Facebook Accounts   Authority-0.134134 %77 %
136Has US Phone Number   Trust-0.131146 %69 %
137Entities in H4 Tags-0.1320324 %82 %
138Number of HREF Lang Tags   Size-0.1344211 %77 %
139Headings Has Question   Other-0.131139 %75 %
140Uses Schema searchresultspage   Other-0.13112 %14 %
141Number of Forms   Technology-0.1316364 %67 %
142Search Result Uses HTTPS   Other-0.131188 %83 %
143Variations in Button Tags   Relevancy-0.131430611 %80 %
144Uses JSON-LD name   Other-0.131156 %71 %
145Search Result Domain Length   Size-0.13261889 %71 %
146Uses Schema url   Other-0.131158 %70 %
147Number of Social Accounts   Authority-0.1310255 %81 %
148Variations in ID Attributes   Relevancy-0.13953618 %78 %
149Has Entities in H3 Tags   Relevancy-0.131147 %77 %
150Uses JSON-LD SearchResultsPage   Other-0.13112 %14 %
151Has Contact Page   Trust-0.131169 %71 %
152Has Meta Viewport   Technology-0.131187 %75 %
153Number of H1 Tags   Size-0.137278 %70 %
154Uses Schema listitem   Other-0.131144 %69 %
155Variations in Style Tags   Relevancy-0.13214728621 %77 %
156Is Home Page   Other-0.131113 %44 %
157Number of Nofollow Links   Authority-0.1355429 %79 %
158Variations in I Tags   Relevancy-0.13208730 %71 %
159Uses JSON-LD url   Other-0.131148 %71 %
160Variations in H4-H6 Tags   Relevancy-0.1343224 %72 %
161Uses JSON-LD itemListOrder   Other-0.13112 %12 %
162Has Canonical URL   Authority-0.121177 %74 %
163Has HREF Lang   Technology-0.121112 %70 %
164Word Count in Meta Description   Size-0.12812068 %66 %
165Variations in Meta Twitter Content   Relevancy-0.127126 %65 %
166Uses Schema breadcrumblist   Other-0.121143 %70 %
167Number of H4 Tags   Size-0.1231442 %70 %
168Number of Questions In H3 Tags   Size-0.125117 %78 %
169Uses Schema question   Other-0.12119 %65 %
170Uses Schema itemlistorder   Other-0.12112 %12 %
171Uses Schema image   Other-0.121123 %63 %
172Is Purchase Page   Other-0.121149 %71 %
173Variations making whole H1 Tags   Relevancy-0.121110 %67 %
174Uses Schema answer   Other-0.12119 %64 %
175Uses Microdata Brand-0.12113 %15 %
176Variations in Article Tags   Relevancy-0.127602029 %73 %
177Has Terms of Service   Trust-0.121142 %67 %
178Uses Schema faqpage   Other-0.12118 %67 %
179Is Store Page   Other-0.121144 %64 %
180Has Google Analytics   Technology-0.121110 %68 %
181Variations in Class Attributes   Relevancy-0.1283563530 %78 %
182Uses Schema organization   Other-0.121137 %67 %
183Uses JSON-LD Question   Other-0.12117 %63 %
184Uses Schema country   Other-0.12112 %21 %
185Uses Schema postaladdress   Other-0.121119 %58 %
186Uses JSON-LD addressRegion   Other-0.121116 %57 %
187Meta Description Length   Size-0.1243512069 %71 %
188Uses Schema addressregion   Other-0.121118 %57 %
189Uses JSON-LD Answer   Other-0.12117 %62 %
190Uses JSON-LD text   Other-0.12118 %63 %
191Uses JSON-LD AggregateRating   Other-0.12118 %58 %
192Uses Schema specialty   Other-0.12112 %14 %
193Has Form   Technology-0.121163 %63 %
194Uses Schema addresslocality   Other-0.121119 %58 %
195Title Length   Size-0.12975388 %65 %
196Uses JSON-LD FAQPage   Other-0.12117 %66 %
197Percentage of DoFollow External Links   Authority-0.12351382 %67 %
198Uses JSON-LD ListItem   Other-0.121139 %66 %
199Uses JSON-LD Country   Other-0.12112 %21 %
200Variations in Meta Twitter Description   Relevancy-0.1221123 %67 %