Measures 132725 SEO Factors

131003 Built-In SEO Factors

122837 On-page SEO Factors

8166 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 ( 53559 )
Relevancy SEO Factors ( 52555 )
Other SEO Factors ( 23840 )
Local SEO Factors ( 8000 )
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 ( 53555 )
Keywords SEO Factors ( 40670 )
Schema SEO Factors ( 23786 )
LSI SEO Factors ( 8388 )
Local SEO Factors ( 8001 )
Entities SEO Factors ( 3475 )
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 2024-7     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-0.26124428288 %80 %
2Number of Distinct Entities Used   Diversity-0.25713183 %89 %
3Number of Unique Variations Used   Diversity-0.22421086 %85 %
4Search Result Domain is .com, .net, or .org   Other-0.22114 %65 %
5Entities in the HTML Tag   Relevancy-0.2265814778 %90 %
6Entities in Sentences   Relevancy-0.2165014376 %90 %
7Variations in Body Tags   Relevancy-0.21202331186 %88 %
8Number of Top 100 Shared Factors Used   Diversity-0.21403198 %93 %
9Variations in HTML Tags   Relevancy-0.21202331086 %89 %
10Number of Top 200 Shared Factors Used   Diversity-0.21544198 %93 %
11Variations in Sentences   Relevancy-0.219924781 %87 %
12Number of Factors Used   Diversity-0.2171319998 %90 %
13Entities in Title Tag   Relevancy-0.218374 %84 %
14Number of Top 50 Shared Factors Used   Diversity-0.2181397 %87 %
15Number of Referring Domains   Authority-0.286566153 %82 %
16Variations in Div Tags   Relevancy-0.2135215783 %87 %
17Search Result Domain is .com   Other-0.2114 %69 %
18Variations in P Tags   Relevancy-0.22884176 %86 %
19Load Time Milliseconds   Performance-0.217539156789 %90 %
20Variations in H1, H2, and H3 Tags   Relevancy-0.233876 %86 %
21Variations in H1-H6 Tags   Relevancy-0.2401077 %86 %
22Entities in H2 Tags-0.236757 %86 %
23LSI Words in Sentences   Relevancy-0.2388072574 %90 %
24Number of Backlinks   Authority-0.2433149368853 %82 %
25Variations in H1 and H2 Tags   Relevancy-0.216574 %84 %
26Number of Do Follow Backlinks   Authority-0.19279281296145 %81 %
27Variations in A Tags   Relevancy-0.192623177 %86 %
28Number of No Follow Backlinks   Authority-0.1920207360344 %80 %
29Variations in LI Tags   Relevancy-0.192602875 %86 %
30Entities in H3 Tags-0.1844747 %86 %
31Variations in H2 Tags   Relevancy-0.1815454 %84 %
32Unabridged Word Count   Size-0.1817652183289 %84 %
33Word Count   Size-0.1813682147989 %84 %
34Number of HTML Tags   Size-0.183956104289 %84 %
35Number of Includes   Technology-0.18502584 %74 %
36Term Frequency   Relevancy-0.184386 %86 %
37Clean Text Kilobytes   Size-0.181161284 %90 %
38Leading Variations in H1-H6 Tags   Relevancy-0.1811256 %82 %
39Number of Sentences   Size-0.1896611888 %83 %
40Variations in A Tag HREF Attributes   Relevancy-0.185036174 %85 %
41Leading Variations in H1, H2, and H3 Tags   Relevancy-0.188253 %81 %
42Entities in H1 Tags-0.189262 %80 %
43Variations in Distinct A Tag HREF Attributes   Relevancy-0.184963974 %85 %
44Variations in Search Result Link Text   Relevancy-0.184289 %71 %
45Variations in Search Result Display URL   Relevancy-0.1711289 %77 %
46Variations in Script Tags   Relevancy-0.1716849371 %84 %
47LSI Words in Title Tag   Relevancy-0.1722674 %87 %
48Variations in ALT Attributes   Relevancy-0.1772955 %82 %
49Variations in the Title Tag   Relevancy-0.175278 %77 %
50Variations in Search Result URL Path   Relevancy-0.177261 %80 %
51Clean Keyword Density in the HTML Tag   Relevancy-0.1712580 %74 %
52Has JSON-LD Schema Markup   Relevancy-0.171157 %76 %
53Number of Images   Size-0.172663184 %81 %
54Variations in Search Result Document File Name   Relevancy-0.177258 %77 %
55Number of P Tags   Size-0.172023782 %83 %
56Variations in Span Tags   Relevancy-0.17741361 %83 %
57LSI Words in H2 Tags   Relevancy-0.17932062 %87 %
58Variations in Absolute URLs   Relevancy-0.1737717775 %89 %
59Number of Heading Tags   Size-0.17712284 %82 %
60Variations in the Canonical URL   Relevancy-0.1739263 %81 %
61Variation Density in Top 30KB   Relevancy-0.16284374 %83 %
62Variations in Meta Description   Relevancy-0.166263 %77 %
63Number of Images with ALT Text   Size-0.162592179 %87 %
64Variations in First 100 Words   Relevancy-0.161991078 %81 %
65Variations in H1 Tags   Relevancy-0.165265 %76 %
66Number of Questions   Size-0.16138970 %88 %
67Number of Links   Authority-0.16122714887 %81 %
68Number of HTTPS Links   Authority-0.16110914486 %87 %
69Exact Matches in the HTML Tag   Relevancy-0.164811436 %76 %
70Number of CSS Includes   Technology-0.1622976 %74 %
71Variations in H3 Tags   Relevancy-0.1619341 %82 %
72Entities in Meta Description Tag   Relevancy-0.1613461 %80 %
73Variations in Main Tags   Relevancy-0.1612547939 %82 %
74Number of Internal Links   Authority-0.16105713186 %87 %
75Number of Facebook Pages   Authority-0.1621264 %79 %
76Number of DoFollow Links   Authority-0.16122214287 %87 %
77Number of H2 Tags   Size-0.1634774 %82 %
78Leading Variations in Title Tag   Relevancy-0.161139 %71 %
79Variations in Search Result URL   Relevancy-0.1617270 %73 %
80Variations in OpenGraph Description   Relevancy-0.1610255 %76 %
81Number Of JSON-LD Types   Relevancy-0.164621561 %85 %
82Page Size Kilobytes   Size-0.1692025889 %86 %
83Number of Absolute URLs   Authority-0.15187126988 %87 %
84Variations in Nav Tags   Relevancy-0.152542954 %81 %
85Leading Variations in H1 Tags   Relevancy-0.152134 %78 %
86Variations in OpenGraph Title   Relevancy-0.155262 %73 %
87Number of H3 Tags   Size-0.1534866 %80 %
88Number of Instagram Pages   Authority-0.1527245 %79 %
89TF/IDF   Relevancy-0.151172 %76 %
90Has Entities in H2 Tags   Relevancy-0.151158 %78 %
91LSI Words in H1 Tags   Relevancy-0.1528564 %84 %
92Variation Count in Top 30KB   Relevancy-0.1548113176 %80 %
93Has Entities in H1 Tags   Relevancy-0.151163 %76 %
94Leading Variations in H2 Tags   Relevancy-0.155127 %83 %
95Variations in Footer Tags   Relevancy-0.151151042 %79 %
96LSI Words in H3 Tags   Relevancy-0.151111954 %86 %
97LSI Words in Meta Description Tag   Relevancy-0.14411160 %84 %
98Number of Questions In Headings   Size-0.148237 %85 %
99Variations Making Whole Span Tags   Relevancy-0.147126 %78 %
100Number of External Links   Authority-0.141701682 %84 %
101Entities in H4 Tags-0.1424324 %82 %
102Variations in Strong Tags   Relevancy-0.1425332 %76 %
103Number of JavaScript Includes   Technology-0.14321785 %74 %
104Variations in Section Tags   Relevancy-0.141342543 %79 %
105Variations in Button Tags   Relevancy-0.14143210 %75 %
106Number of LinkedIn Pages   Authority-0.144129 %74 %
107Exact Matches in H1-H6 Tags   Relevancy-0.1415124 %75 %
108Number of DoFollow External Links   Authority-0.141691481 %82 %
109Title Tag Has Entities   Relevancy-0.141175 %76 %
110Percentage of DoFollow Internal Links   Authority-0.14947786 %82 %
111Variations in TITLE Attributes   Relevancy-0.14137845 %77 %
112Variations Making Whole LI Tags   Relevancy-0.146133 %74 %
113Flesch Kincaid Reading Grade Level   Other-0.147394 %84 %
114Inline JavaScript Kilobytes   Size-0.145437886 %83 %
115Has Entities in H3 Tags   Relevancy-0.141149 %77 %
116Number of Facebook Accounts   Authority-0.133132 %75 %
117Variations in the last 100 words   Relevancy-0.13189561 %79 %
118Percentage of DoFollow Links   Authority-0.131008886 %85 %
119Variations making whole H1-H6 Tags   Relevancy-0.133119 %72 %
120Exact Matches in Top 30KB   Relevancy-0.1334222 %70 %
121Search Result Number of Dirs in Path   Other-0.134278 %71 %
122Number of Prices   Size-0.137755671 %79 %
123Variations making whole H1, H2, and H3 Tags   Relevancy-0.132117 %71 %
124Variations making whole A Tags   Relevancy-0.1324238 %74 %
125Uses Schema aggregaterating   Other-0.131110 %62 %
126Inline CSS Kilobytes   Size-0.132695967 %83 %
127Headings Has Question   Other-0.131137 %78 %
128Number of HTML Comments   Size-0.133323876 %75 %
129Uses JSON-LD SearchResultsPage   Other-0.13112 %23 %
130Leading Variations in H3 Tags   Relevancy-0.136120 %81 %
131Exact Matches in Sentences   Relevancy-0.1355325 %78 %
132Uses Schema searchresultspage   Other-0.13112 %23 %
133Variations in Article Tags   Relevancy-0.131411727 %71 %
134Number of Twitter Accounts   Authority-0.135133 %76 %
135Variations in ID Attributes   Relevancy-0.1383216 %78 %
136Meta Description Tag Has Entities   Relevancy-0.131161 %71 %
137Number of US Phone Numbers   Trust-0.134671044 %79 %
138Variations in I Tags   Relevancy-0.1336631 %72 %
139Has Meta Charset   Technology-0.131180 %70 %
140Number of Nofollow Links   Authority-0.1380529 %77 %
141Has Privacy Policy   Trust-0.131159 %79 %
142Variations in H4-H6 Tags   Relevancy-0.1330224 %74 %
143Number of Questions In H2 Tags   Size-0.135123 %79 %
144Has FavIcon   Technology-0.131178 %75 %
145Number of Questions In H3 Tags   Size-0.134116 %80 %
146Number of Forms   Technology-0.1322361 %69 %
147Exact Matches in Title Tag   Relevancy-0.133121 %70 %
148Uses JSON-LD name   Other-0.131157 %72 %
149Uses Schema itemlist   Other-0.13114 %47 %
150Number of Images without ALT Text   Size-0.13941165 %79 %
151Variations in Style Tags   Relevancy-0.133951019 %76 %
152Number of Social Pages   Authority-0.1331470 %78 %
153Uses Schema name   Other-0.131164 %72 %
154Uses JSON-LD AggregateRating-0.12118 %64 %
155Uses JSON-LD ItemList   Other-0.12114 %47 %
156Uses Schema answer   Other-0.12118 %62 %
157Number of H4 Tags   Size-0.1230441 %74 %
158Uses Schema faqpage   Other-0.12118 %62 %
159Word Count in Meta Description   Size-0.12802070 %71 %
160Uses Schema question   Other-0.12118 %63 %
161Has Canonical URL   Authority-0.121177 %75 %
162Number of Social Accounts   Authority-0.1210251 %77 %
163Number of H1 Tags   Size-0.126277 %73 %
164Uses JSON-LD text   Other-0.12117 %63 %
165Variations in Class Attributes   Relevancy-0.12320928 %75 %
166Uses Schema url   Other-0.121159 %68 %
167Has Meta Viewport   Technology-0.121186 %75 %
168Variations in H4 Tags   Relevancy-0.1210218 %74 %
169Uses JSON-LD url   Other-0.121149 %70 %
170Meta Description Length   Size-0.1248012470 %76 %
171Uses JSON-LD Answer   Other-0.12117 %60 %
172Number of NoFollow External Links   Authority-0.1240220 %76 %
173Title Word Count   Size-0.1215888 %73 %
174Has Contact Page   Trust-0.121169 %68 %
175Uses JSON-LD Question   Other-0.12117 %62 %
176Average Words Per Sentence   Size-0.123093985 %74 %
177Search Result Uses HTTPS   Other-0.121188 %82 %
178Uses Schema listitem   Other-0.121144 %64 %
179Uses JSON-LD ratingValue-0.12118 %59 %
180Uses JSON-LD FAQPage   Other-0.12116 %62 %
181Has Meta Description   Relevancy-0.121170 %67 %
182Uses Schema ratingvalue   Other-0.121110 %60 %
183Variations in Value Attributes   Relevancy-0.1257217 %66 %
184Uses JSON-LD description   Other-0.121145 %66 %
185Variations making whole H1 Tags   Relevancy-0.121110 %67 %
186Uses Schema description   Other-0.121150 %63 %
187Uses Schema reviewcount   Other-0.12116 %54 %
188Has Schema Markup   Relevancy-0.121169 %74 %
189Uses JSON-LD ListItem   Other-0.121139 %65 %
190Title Length   Size-0.121015388 %71 %
191Number of HREF Lang Tags   Size-0.1221211 %74 %
192Uses JSON-LD State   Other-0.12113 %14 %
193Percentage of DoFollow External Links   Authority-0.12271279 %70 %
194Number of Email Addresses   Trust-0.1271446 %77 %
195Uses Schema state   Other-0.12113 %14 %
196Search Result Host Length   Size-0.12261888 %64 %
197Has Terms of Service   Trust-0.121139 %70 %
198Percentage of NoFollow Links   Authority-0.1223326 %72 %
199Uses JSON-LD reviewCount   Other-0.12116 %53 %
200Uses Schema breadcrumblist   Other-0.121143 %65 %