Measures 126216 SEO Factors

124494 Built-In SEO Factors

116887 On-page SEO Factors

7607 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 ( 52618 )
Relevancy SEO Factors ( 51178 )
Other SEO Factors ( 22005 )
Local SEO Factors ( 7474 )
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 ( 52614 )
Keywords SEO Factors ( 39565 )
Schema SEO Factors ( 21951 )
LSI SEO Factors ( 8196 )
Local SEO Factors ( 7475 )
Entities SEO Factors ( 3395 )
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-0.26138332789 %78 %
2Number of Distinct Entities Used   Diversity-0.24773281 %88 %
3Search Result Domain is .com, .net, or .org   Other-0.23114 %73 %
4Number of Referring Domains   Authority-0.2265028459 %79 %
5Number of Unique Variations Used   Diversity-0.22451187 %83 %
6Search Result Domain is .com   Other-0.21114 %79 %
7Variations in Body Tags   Relevancy-0.218742853286 %86 %
8Variations in HTML Tags   Relevancy-0.218742853287 %86 %
9Number of Top 50 Shared Factors Used   Diversity-0.21171397 %85 %
10Number of Backlinks   Authority-0.212194135519858 %81 %
11Entities in the HTML Tag   Relevancy-0.2155416278 %89 %
12Entities in Sentences   Relevancy-0.2155015976 %88 %
13Load Time Milliseconds   Performance-0.2150019172590 %90 %
14Number of Factors Used   Diversity-0.255621099 %89 %
15Number of Top 100 Shared Factors Used   Diversity-0.2403199 %91 %
16Variations in Div Tags   Relevancy-0.23534722384 %85 %
17Number of Top 200 Shared Factors Used   Diversity-0.2544199 %91 %
18LSI Words in Sentences   Relevancy-0.2550883076 %87 %
19Variations in Sentences   Relevancy-0.234346182 %84 %
20Number of No Follow Backlinks   Authority-0.215566685750 %80 %
21Number of Do Follow Backlinks   Authority-0.22038470435250 %80 %
22Variations in H1, H2, and H3 Tags   Relevancy-0.2131977 %83 %
23Variations in P Tags   Relevancy-0.223545177 %83 %
24Variations in H1-H6 Tags   Relevancy-0.191731078 %84 %
25Variations in A Tags   Relevancy-0.1942603877 %85 %
26Entities in Title Tag   Relevancy-0.199373 %83 %
27Variations in H1 and H2 Tags   Relevancy-0.1968675 %81 %
28Variations in LI Tags   Relevancy-0.1922453376 %85 %
29Clean Text Kilobytes   Size-0.191121485 %88 %
30Entities in H2 Tags-0.1939857 %86 %
31Unabridged Word Count   Size-0.1921640202089 %81 %
32Word Count   Size-0.1913832157490 %81 %
33Number of Includes   Technology-0.19472485 %70 %
34Number of HTML Tags   Size-0.184018101590 %82 %
35Term Frequency   Relevancy-0.186387 %83 %
36Leading Variations in H1-H6 Tags   Relevancy-0.1822255 %79 %
37LSI Words in Title Tag   Relevancy-0.1820676 %85 %
38Variations in H2 Tags   Relevancy-0.1859456 %81 %
39Number of Sentences   Size-0.18115312489 %81 %
40Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1817253 %79 %
41Entities in H3 Tags-0.1733747 %86 %
42Variations in A Tag HREF Attributes   Relevancy-0.1719336373 %85 %
43Variations in Distinct A Tag HREF Attributes   Relevancy-0.1711434173 %85 %
44Variations in the Title Tag   Relevancy-0.1714278 %72 %
45Clean Keyword Density in the HTML Tag   Relevancy-0.17190680 %74 %
46Number of HTTPS Links   Authority-0.1753914587 %86 %
47Variations in Search Result Link Text   Relevancy-0.178288 %67 %
48Number of Links   Authority-0.17104814788 %79 %
49Variations in Search Result URL Path   Relevancy-0.1724261 %79 %
50Variations in Script Tags   Relevancy-0.172726613472 %82 %
51Number of DoFollow Links   Authority-0.17104714388 %87 %
52Number of P Tags   Size-0.173584284 %79 %
53Has JSON-LD Schema Markup   Relevancy-0.171158 %76 %
54Number of Internal Links   Authority-0.1751112987 %86 %
55Variations in ALT Attributes   Relevancy-0.17272954 %79 %
56Variations in Span Tags   Relevancy-0.175561561 %82 %
57Number of Heading Tags   Size-0.17602285 %79 %
58Number of Facebook Pages   Authority-0.1711366 %78 %
59Variations in Search Result Display URL   Relevancy-0.178289 %73 %
60Number of Images   Size-0.173033085 %79 %
61LSI Words in H2 Tags   Relevancy-0.171222264 %85 %
62Variations in Main Tags   Relevancy-0.162005212940 %82 %
63Number of Questions   Size-0.16531071 %86 %
64Variation Density in Top 30KB   Relevancy-0.16281475 %81 %
65Page Size Kilobytes   Size-0.1676826090 %85 %
66Number of Absolute URLs   Authority-0.1687226089 %84 %
67Variations in Nav Tags   Relevancy-0.1663034355 %80 %
68Entities in H1 Tags-0.1614263 %78 %
69Variations in Absolute URLs   Relevancy-0.1678609274 %88 %
70Number of H2 Tags   Size-0.1631776 %78 %
71Variations in H3 Tags   Relevancy-0.1664442 %79 %
72Number of Images with ALT Text   Size-0.162272080 %86 %
73Variations in First 100 Words   Relevancy-0.163271076 %79 %
74Variations in Search Result Document File Name   Relevancy-0.1620260 %74 %
75Variations in H1 Tags   Relevancy-0.1611267 %73 %
76Variations in the Canonical URL   Relevancy-0.1638261 %82 %
77Number of CSS Includes   Technology-0.1519877 %69 %
78Number of Instagram Pages   Authority-0.1530244 %79 %
79Exact Matches in the HTML Tag   Relevancy-0.155431235 %72 %
80Leading Variations in Title Tag   Relevancy-0.151139 %67 %
81Number Of JSON-LD Types   Relevancy-0.151361462 %81 %
82Variations in OpenGraph Title   Relevancy-0.1510262 %69 %
83LSI Words in H1 Tags   Relevancy-0.1523567 %82 %
84Leading Variations in H1 Tags   Relevancy-0.152134 %74 %
85Search Result Number of Dirs in Path   Other-0.154282 %77 %
86LSI Words in H3 Tags   Relevancy-0.151032155 %83 %
87Variations in OpenGraph Description   Relevancy-0.1538256 %74 %
88Number of External Links   Authority-0.15661884 %81 %
89Variations in Meta Description   Relevancy-0.1541262 %73 %
90Variations in Footer Tags   Relevancy-0.1527961643 %79 %
91Variations in Search Result URL   Relevancy-0.1541269 %70 %
92Number of H3 Tags   Size-0.1528867 %76 %
93Number of Questions In Headings   Size-0.1512240 %82 %
94Variation Count in Top 30KB   Relevancy-0.15121334576 %79 %
95Variations Making Whole Span Tags   Relevancy-0.1522226 %75 %
96Number of DoFollow External Links   Authority-0.14561683 %80 %
97Has Meta Charset   Technology-0.141179 %68 %
98Variations Making Whole LI Tags   Relevancy-0.146134 %73 %
99Percentage of DoFollow Internal Links   Authority-0.14937687 %80 %
100Variations making whole A Tags   Relevancy-0.1435240 %72 %
101Variations in Section Tags   Relevancy-0.149882943 %76 %
102Entities in Meta Description Tag   Relevancy-0.1416359 %78 %
103Number of LinkedIn Pages   Authority-0.143134 %74 %
104Number of Twitter Accounts   Authority-0.144141 %76 %
105Leading Variations in H2 Tags   Relevancy-0.147128 %81 %
106Number of JavaScript Includes   Technology-0.14331786 %70 %
107Inline CSS Kilobytes   Size-0.142416268 %81 %
108Variations in TITLE Attributes   Relevancy-0.14279845 %76 %
109Uses Schema searchresultspage   Other-0.14112 %15 %
110TF/IDF   Relevancy-0.141174 %75 %
111Flesch Kincaid Reading Grade Level   Other-0.148396 %85 %
112Has FavIcon   Technology-0.141178 %77 %
113Inline JavaScript Kilobytes   Size-0.144057987 %82 %
114Has Privacy Policy   Trust-0.141164 %78 %
115Number of Social Pages   Authority-0.1438471 %78 %
116Exact Matches in H1-H6 Tags   Relevancy-0.1412124 %73 %
117Number of HTML Comments   Size-0.143783576 %74 %
118Has Entities in H2 Tags   Relevancy-0.141158 %76 %
119Variations in the last 100 words   Relevancy-0.14347560 %77 %
120Uses JSON-LD SearchResultsPage   Other-0.14112 %15 %
121Number of Prices   Size-0.1410756274 %79 %
122LSI Words in Meta Description Tag   Relevancy-0.14851160 %81 %
123Number of Facebook Accounts   Authority-0.144135 %76 %
124Uses Schema name   Other-0.141165 %70 %
125Number of US Phone Numbers   Trust-0.142381047 %79 %
126Has Schema Markup   Relevancy-0.131169 %75 %
127Percentage of DoFollow Links   Authority-0.131008887 %82 %
128Leading Variations in H3 Tags   Relevancy-0.1310121 %81 %
129Number of Questions In H2 Tags   Size-0.135125 %79 %
130Has Entities in H1 Tags   Relevancy-0.131163 %75 %
131Entities in H4 Tags-0.1320324 %81 %
132Headings Has Question   Other-0.131140 %75 %
133Variations in Strong Tags   Relevancy-0.1367334 %74 %
134Average Words Per Sentence   Size-0.132323686 %76 %
135Number of Images without ALT Text   Size-0.131111065 %79 %
136Title Tag Has Entities   Relevancy-0.131174 %77 %
137Variations making whole H1-H6 Tags   Relevancy-0.133120 %68 %
138Variations in Button Tags   Relevancy-0.131430510 %78 %
139Variations making whole H1, H2, and H3 Tags   Relevancy-0.133117 %68 %
140Number of Forms   Technology-0.1316263 %65 %
141Search Result Uses HTTPS   Other-0.131189 %83 %
142Number of Social Accounts   Authority-0.1323356 %80 %
143Uses Schema url   Other-0.131159 %68 %
144Search Result Host Length   Size-0.13261889 %65 %
145Uses JSON-LD name   Other-0.131158 %70 %
146Has Entities in H3 Tags   Relevancy-0.131148 %76 %
147Uses Schema specialty   Other-0.13112 %13 %
148Number of HREF Lang Tags   Size-0.1344211 %74 %
149Has US Phone Number   Trust-0.131146 %69 %
150Number of Questions In H3 Tags   Size-0.136118 %77 %
151Number of Nofollow Links   Authority-0.1366429 %79 %
152Variations in ID Attributes   Relevancy-0.13953417 %77 %
153Has Meta Viewport   Technology-0.131187 %74 %
154Number of H1 Tags   Size-0.137279 %70 %
155Variations in Style Tags   Relevancy-0.13214725920 %76 %
156Search Result Domain Length   Size-0.13261889 %71 %
157Variations in I Tags   Relevancy-0.12208630 %69 %
158Uses Schema question   Other-0.12119 %64 %
159Uses Schema answer   Other-0.12119 %62 %
160Variations in Article Tags   Relevancy-0.127602029 %69 %
161Uses Schema country   Other-0.12112 %22 %
162Has Contact Page   Trust-0.121169 %67 %
163Word Count in Meta Description   Size-0.121792069 %65 %
164Variations in H4-H6 Tags   Relevancy-0.1243224 %70 %
165Has Canonical URL   Authority-0.121178 %73 %
166Uses JSON-LD Country   Other-0.12112 %22 %
167Uses JSON-LD url   Other-0.121148 %69 %
168Uses Schema listitem   Other-0.121145 %67 %
169Uses Schema faqpage   Other-0.12118 %65 %
170Uses JSON-LD Question   Other-0.12118 %62 %
171Uses JSON-LD Answer   Other-0.12118 %60 %
172Is Home Page   Other-0.121113 %44 %
173Number of H4 Tags   Size-0.1231442 %69 %
174Uses Schema aggregaterating   Other-0.121110 %55 %
175Has HREF Lang   Technology-0.121112 %67 %
176Uses JSON-LD text   Other-0.12118 %62 %
177Uses JSON-LD itemListOrder   Other-0.12113 %13 %
178Uses Schema encodingformat   Other-0.12112 %19 %
179Exact Matches in Sentences   Relevancy-0.1245324 %77 %
180Variations in Meta Twitter Content   Relevancy-0.127127 %63 %
181Uses Schema addresslocality   Other-0.121119 %57 %
182Uses Schema image   Other-0.121123 %64 %
183Uses Schema itemlistorder   Other-0.12112 %12 %
184Uses JSON-LD encodingFormat   Other-0.12112 %19 %
185Meta Description Length   Size-0.12148212370 %71 %
186Number of NoFollow External Links   Authority-0.1224220 %77 %
187Variations making whole H1 Tags   Relevancy-0.121110 %64 %
188Has Terms of Service   Trust-0.121142 %69 %
189Uses Schema addressregion   Other-0.121118 %57 %
190Uses Schema breadcrumblist   Other-0.121144 %68 %
191Uses Schema postaladdress   Other-0.121119 %58 %
192Uses JSON-LD FAQPage   Other-0.12117 %64 %
193Percentage of DoFollow External Links   Authority-0.12351382 %67 %
194Is Purchase Page   Other-0.121149 %69 %
195Uses JSON-LD AggregateRating   Other-0.12118 %57 %
196Uses Schema organization   Other-0.121138 %65 %
197Uses JSON-LD ItemList   Other-0.12114 %45 %
198Uses JSON-LD State   Other-0.12113 %16 %
199Uses Schema state   Other-0.12113 %16 %
200Variations in Class Attributes   Relevancy-0.1283562630 %76 %