Measures 151359 SEO Factors

149637 Built-In SEO Factors

140420 On-page SEO Factors

9217 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

TOP SEO Factors for 2026-07     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-0.2774421276 %75 %
2Entities in Title Tag   Relevancy-0.236355 %96 %
3Number of Top 100 Shared Factors Used   Diversity-0.23372693 %94 %
4Number of Top 200 Shared Factors Used   Diversity-0.23493593 %94 %
5Number of Unique Variations Used   Diversity-0.22591071 %87 %
6Number of Top 50 Shared Factors Used   Diversity-0.22161193 %94 %
7Number of Distinct Entities Used   Diversity-0.22572769 %95 %
8Variations in H1-H6 Tags   Relevancy-0.22215949 %86 %
9Load Time Milliseconds   Performance-0.2125940195579 %90 %
10Entities in the HTML Tag   Relevancy-0.2169012864 %96 %
11Entities in Sentences   Relevancy-0.2167412459 %96 %
12Number of Factors Used   Diversity-0.2128316093 %90 %
13Variations in H1, H2, and H3 Tags   Relevancy-0.21188848 %87 %
14Number of Facebook Pages   Authority-0.214243 %90 %
15Has JSON-LD Schema Markup   Relevancy-0.211141 %81 %
16Variations in H1 and H2 Tags   Relevancy-0.21123546 %86 %
17Number of Includes   Technology-0.21602570 %87 %
18Entities in H2 Tags-0.2128637 %93 %
19Variations in Search Result Document File Name   Relevancy-0.217139 %87 %
20Number of CSS Includes   Technology-0.2125963 %77 %
21Variations in P Tags   Relevancy-0.2140147349 %91 %
22Entities in H1 Tags-0.24241 %94 %
23Number of P Tags   Size-0.22183263 %90 %
24Number of Heading Tags   Size-0.2501765 %86 %
25Number of Referring Domains   Authority-0.27313731 %89 %
26Variations in LI Tags   Relevancy-0.215123350 %88 %
27Variations in Div Tags   Relevancy-0.22762346759 %90 %
28Variations in Sentences   Relevancy-0.233067157 %91 %
29Word Count   Size-0.212278132278 %88 %
30Flesch Kincaid Reading Grade Level   Other-0.196186 %90 %
31Number of Backlinks   Authority-0.19197596222331 %90 %
32Variations in H1 Tags   Relevancy-0.1911140 %84 %
33Unabridged Word Count   Size-0.1956122217578 %87 %
34Variations in Body Tags   Relevancy-0.1990453137268 %89 %
35Variations in Search Result URL Path   Relevancy-0.198241 %87 %
36Variation Count in Top 30KB   Relevancy-0.1946877255 %83 %
37Variations in A Tags   Relevancy-0.1933766151 %84 %
38Clean Keyword Density in the HTML Tag   Relevancy-0.19195759 %82 %
39Number of Do Follow Backlinks   Authority-0.19188984200628 %87 %
40Has Meta Charset   Technology-0.191165 %79 %
41LSI Words in Sentences   Relevancy-0.19438650155 %93 %
42Clean Text Kilobytes   Size-0.192841464 %86 %
43Search Result Number of Dirs in Path   Other-0.193272 %76 %
44Number of H2 Tags   Size-0.1914655 %84 %
45Variations in H2 Tags   Relevancy-0.19117432 %83 %
46Entities in H3 Tags-0.1937731 %97 %
47Number of H1 Tags   Size-0.192159 %86 %
48Has Entities in H1 Tags   Relevancy-0.191142 %88 %
49Variations in HTML Tags   Relevancy-0.1990453133266 %92 %
50Leading Variations in H1-H6 Tags   Relevancy-0.195233 %84 %
51Leading Variations in H1, H2, and H3 Tags   Relevancy-0.195231 %85 %
52Number of Images   Size-0.181652364 %86 %
53Term Frequency   Relevancy-0.186365 %90 %
54Variations in First 100 Words   Relevancy-0.18172856 %85 %
55Entities in Meta Description Tag   Relevancy-0.1812345 %89 %
56Variations in Absolute URLs   Relevancy-0.18439910051 %87 %
57Variations in Distinct A Tag HREF Attributes   Relevancy-0.1813453747 %87 %
58Number of HTTPS Links   Authority-0.1839711970 %86 %
59Number of Links   Authority-0.1845212171 %86 %
60Variations in OpenGraph Title   Relevancy-0.189144 %81 %
61Number of Social Pages   Authority-0.1816450 %87 %
62Number of HTML Tags   Size-0.18417292779 %87 %
63Number of DoFollow Links   Authority-0.1839811871 %87 %
64Number of Instagram Pages   Authority-0.1813232 %82 %
65Number Of JSON-LD Types   Relevancy-0.18701145 %86 %
66Variations in A Tag HREF Attributes   Relevancy-0.1822065847 %87 %
67Number of No Follow Backlinks   Authority-0.182191025820 %86 %
68Percentage of DoFollow Links   Authority-0.18997769 %85 %
69Number of Internal Links   Authority-0.1837910769 %87 %
70Variations in OpenGraph Description   Relevancy-0.1829239 %82 %
71Number of LinkedIn Pages   Authority-0.183123 %83 %
72Variations in Search Result Display URL   Relevancy-0.1814269 %83 %
73Variations in Search Result Link Text   Relevancy-0.1814269 %83 %
74Search Result Domain is .com, .net, or .org   Other-0.18118 %83 %
75Has Entities in H2 Tags   Relevancy-0.181140 %88 %
76Number of Images with ALT Text   Size-0.18851559 %87 %
77Is Article Page   Other-0.181133 %76 %
78Search Result Domain is .com   Other-0.18117 %81 %
79Number of External Links   Authority-0.181351465 %88 %
80Title Tag Has Entities   Relevancy-0.181155 %86 %
81Variations in the Canonical URL   Relevancy-0.1837242 %88 %
82LSI Words in Title Tag   Relevancy-0.1810457 %93 %
83Variation Density in Top 30KB   Relevancy-0.17303653 %82 %
84Variations in the Title Tag   Relevancy-0.1711253 %86 %
85Has Meta Viewport   Technology-0.171173 %80 %
86Variations in Search Result URL   Relevancy-0.1723250 %81 %
87Number of Sentences   Size-0.1764411975 %86 %
88Average Words Per Sentence   Size-0.172873368 %84 %
89Variations in Script Tags   Relevancy-0.172198632253 %86 %
90Variations in Meta Description   Relevancy-0.1729243 %82 %
91Number of HTML Comments   Size-0.172574662 %85 %
92Number of DoFollow External Links   Authority-0.171341264 %89 %
93Number of Facebook Accounts   Authority-0.172120 %82 %
94Uses JSON-LD name-0.171142 %81 %
95Variations in ALT Attributes   Relevancy-0.17170835 %77 %
96Variations in Footer Tags   Relevancy-0.1748964531 %80 %
97Search Result Uses HTTPS   Other-0.171176 %77 %
98LSI Words in H1 Tags   Relevancy-0.178344 %91 %
99Number of Images without ALT Text   Size-0.17113947 %84 %
100Variations in Nav Tags   Relevancy-0.171181610537 %87 %
101Number of H3 Tags   Size-0.1737746 %90 %
102Variations in Span Tags   Relevancy-0.175231639 %87 %
103LSI Words in H2 Tags   Relevancy-0.17651342 %91 %
104Page Size Kilobytes   Size-0.1785430575 %70 %
105Inline CSS Kilobytes   Size-0.171335659 %85 %
106Number of Questions In Headings   Size-0.176225 %83 %
107Number of Absolute URLs   Authority-0.17122123175 %77 %
108Variations in H3 Tags   Relevancy-0.1765425 %84 %
109Has FavIcon   Technology-0.171163 %75 %
110Headings Has Question   Other-0.161125 %80 %
111Number of JavaScript Includes   Technology-0.16431772 %84 %
112Uses JSON-LD description   Other-0.161134 %77 %
113Variations in Main Tags   Relevancy-0.161021416329 %86 %
114Search Result Domain Length   Size-0.16211677 %81 %
115Search Result Host Length   Size-0.16211677 %81 %
116Has Canonical URL   Authority-0.161161 %74 %
117Uses JSON-LD datePublished   Other-0.161125 %77 %
118Uses JSON-LD url   Other-0.161139 %81 %
119Variations in Section Tags   Relevancy-0.1616062828 %90 %
120Variations in Search Result Summary   Relevancy-0.1648371 %79 %
121Uses Schema organization   Other-0.161127 %73 %
122Percentage of DoFollow Internal Links   Authority-0.16886769 %82 %
123Is OpenGraph Type Article   Technology-0.161124 %75 %
124Number of US Phone Numbers   Trust-0.16212936 %84 %
125TF/IDF   Relevancy-0.161146 %83 %
126Number of Social Accounts   Authority-0.164131 %88 %
127Uses JSON-LD ImageObject   Other-0.161124 %78 %
128Has US Phone Number   Trust-0.161136 %79 %
129Uses Schema datemodified   Other-0.161123 %75 %
130Uses JSON-LD dateModified   Other-0.161123 %76 %
131Has Entities in H3 Tags   Relevancy-0.161132 %90 %
132Uses JSON-LD Organization   Other-0.161125 %75 %
133Percentage of DoFollow External Links   Authority-0.16251161 %82 %
134Has Meta Description   Relevancy-0.161154 %69 %
135Number of Questions   Size-0.16401053 %77 %
136Uses Schema name   Other-0.161148 %76 %
137Leading Variations in H1 Tags   Relevancy-0.161119 %78 %
138Has Apple Touch Icon   Technology-0.161138 %74 %
139LSI Words in Meta Description Tag   Relevancy-0.1620745 %92 %
140Variations in the last 100 words   Relevancy-0.15177544 %78 %
141Uses Schema description   Other-0.151138 %68 %
142Number of Forms   Technology-0.159244 %75 %
143Uses Schema url   Other-0.151144 %76 %
144Uses Schema datepublished   Other-0.151128 %67 %
145Leading Variations in Title Tag   Relevancy-0.151124 %79 %
146LSI Words in H3 Tags   Relevancy-0.15651535 %94 %
147Title Length   Size-0.151074974 %80 %
148Variations in Strong Tags   Relevancy-0.15129319 %85 %
149Word Count in Meta Description   Size-0.15361754 %79 %
150Uses JSON-LD WebPage   Other-0.151124 %76 %
151Uses Schema imageobject   Other-0.151128 %69 %
152Uses Schema webpage   Other-0.151125 %75 %
153Has Schema Markup   Relevancy-0.151153 %74 %
154Inline JavaScript Kilobytes   Size-0.1556113270 %76 %
155Has OpenGraph Type   Relevancy-0.151152 %76 %
156Meta Description Length   Size-0.1523810654 %80 %
157Uses JSON-LD BreadcrumbList   Other-0.151127 %77 %
158Uses JSON-LD ListItem   Other-0.151127 %77 %
159Variations making whole A Tags   Relevancy-0.155122 %83 %
160Uses Schema website   Other-0.151126 %69 %
161Title Word Count   Size-0.1516874 %80 %
162Number of Twitter Accounts   Authority-0.152115 %83 %
163Has Form   Technology-0.151143 %74 %
164Variations Making Whole LI Tags   Relevancy-0.155120 %78 %
165Variations in Article Tags   Relevancy-0.1511512019 %84 %
166Has OpenGraph Image   Relevancy-0.151146 %76 %
167Meta Description Tag Has Entities   Relevancy-0.151143 %81 %
168Has Contact Page   Trust-0.141153 %77 %
169Uses JSON-LD headline   Other-0.141114 %74 %
170Has Meta Twitter Card   Authority-0.141145 %76 %
171Uses Schema item   Other-0.141124 %63 %
172Uses JSON-LD item   Other-0.141120 %73 %
173Leading Variations in H2 Tags   Relevancy-0.142116 %80 %
174Has Copyright   Trust-0.141154 %65 %
175Uses Schema listitem   Other-0.141131 %67 %
176Number of Email Addresses   Trust-0.1412437 %82 %
177Uses Schema headline   Other-0.141115 %73 %
178Number of H4 Tags   Size-0.1410328 %82 %
179Variations Making Whole Span Tags   Relevancy-0.143115 %78 %
180Uses Schema inlanguage   Other-0.141123 %70 %
181Uses JSON-LD inLanguage   Other-0.141123 %73 %
182Number of Questions In H2 Tags   Size-0.144116 %81 %
183Uses Schema breadcrumblist   Other-0.141131 %67 %
184Search Result Summary Length   Size-0.1416115092 %77 %
185Has Privacy Policy   Trust-0.141146 %75 %
186Uses JSON-LD WebSite   Other-0.141123 %71 %
187Number Of Claimed Brands   Other-0.1423217 %77 %
188Number of Prices   Size-0.14373812560 %77 %
189Number of Meta Generator Tags   Technology-0.142126 %75 %
190Entities in H4 Tags-0.139215 %94 %
191Uses Schema contenturl   Other-0.131117 %70 %
192Uses JSON-LD caption   Other-0.131116 %72 %
193Uses JSON-LD SearchAction   Other-0.131117 %70 %
194Uses JSON-LD ReadAction   Other-0.131113 %71 %
195Is Store Page   Other-0.131141 %64 %
196Variations in TITLE Attributes   Relevancy-0.13135630 %83 %
197Leading Variations in H3 Tags   Relevancy-0.134112 %81 %
198Uses Schema caption   Other-0.131116 %70 %
199Has Google Verify   Technology-0.131115 %69 %
200Uses Schema readaction   Other-0.131113 %69 %