Measures 149735 SEO Factors

148013 Built-In SEO Factors

138836 On-page SEO Factors

9177 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 2026-02     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Search Result Domain is .com, .net, or .org   Other-0.22115 %66 %
2Search Result Domain is .com   Other-0.22115 %65 %
3Number of Top 50 Shared Factors Used   Diversity-0.2161294 %91 %
4Load Time Milliseconds   Performance-0.210602146682 %87 %
5Number of Unique LSI Words Used   Diversity-0.2127332582 %76 %
6Number of Top 200 Shared Factors Used   Diversity-0.2523894 %92 %
7Number of Top 100 Shared Factors Used   Diversity-0.2392994 %92 %
8Variations in Search Result Document File Name   Relevancy-0.1935243 %82 %
9Number of Unique Variations Used   Diversity-0.1949779 %88 %
10Entities in Title Tag   Relevancy-0.197361 %95 %
11Variations in Search Result URL Path   Relevancy-0.1853245 %82 %
12Number of Factors Used   Diversity-0.1858218095 %87 %
13Number of Backlinks   Authority-0.18203862748447 %26 %
14Number of Referring Domains   Authority-0.182865833247 %26 %
15Variations in Search Result Link Text   Relevancy-0.173280 %83 %
16Variations in P Tags   Relevancy-0.175662965 %86 %
17Variations in H1, H2, and H3 Tags   Relevancy-0.1737662 %87 %
18Variations in Search Result URL   Relevancy-0.17151255 %80 %
19Variations in Search Result Display URL   Relevancy-0.1753280 %83 %
20Number of Do Follow Backlinks   Authority-0.17339517887442 %26 %
21Variations in H1-H6 Tags   Relevancy-0.1737763 %87 %
22Variations in H1 and H2 Tags   Relevancy-0.1712460 %87 %
23Variations in Div Tags   Relevancy-0.17222210572 %88 %
24Variations in Body Tags   Relevancy-0.17436420677 %89 %
25Variations in HTML Tags   Relevancy-0.17436420576 %89 %
26Variations in First 100 Words   Relevancy-0.1714331568 %82 %
27Variations in H1 Tags   Relevancy-0.173153 %84 %
28Variation Count in Top 30KB   Relevancy-0.174917429864 %86 %
29Number of Distinct Entities Used   Diversity-0.17612469 %92 %
30Variations in Sentences   Relevancy-0.174313372 %88 %
31Variations in the Canonical URL   Relevancy-0.16499450 %85 %
32Term Frequency   Relevancy-0.164377 %87 %
33Variations in the Title Tag   Relevancy-0.163266 %84 %
34Entities in H1 Tags-0.167249 %91 %
35Leading Variations in H1-H6 Tags   Relevancy-0.169243 %86 %
36Variations in LI Tags   Relevancy-0.168621963 %86 %
37Search Result Not .com .net or .org   Other-0.161190 %22 %
38Variations in Absolute URLs   Relevancy-0.1613489078962 %86 %
39Leading Variations in H1 Tags   Relevancy-0.162126 %81 %
40Number of No Follow Backlinks   Authority-0.162619981836 %25 %
41Variations in A Tags   Relevancy-0.162601964 %84 %
42Variations in Meta Description   Relevancy-0.163254 %84 %
43Leading Variations in H1, H2, and H3 Tags   Relevancy-0.168241 %86 %
44Clean Keyword Density in the HTML Tag   Relevancy-0.1610469 %77 %
45Variations in H2 Tags   Relevancy-0.1611346 %86 %
46Variations in A Tag HREF Attributes   Relevancy-0.151803560 %86 %
47Clean Text Kilobytes   Size-0.15671272 %83 %
48LSI Words in Title Tag   Relevancy-0.1514664 %93 %
49Search Result Number of Dirs in Path   Other-0.153270 %76 %
50Variations in Distinct A Tag HREF Attributes   Relevancy-0.151262260 %87 %
51Variations in Script Tags   Relevancy-0.157875863 %85 %
52Number of Images with ALT Text   Size-0.153622367 %85 %
53TF/IDF   Relevancy-0.151159 %84 %
54Variations in ALT Attributes   Relevancy-0.1583745 %83 %
55Unabridged Word Count   Size-0.1512283176182 %85 %
56Leading Variations in Title Tag   Relevancy-0.151130 %84 %
57Word Count   Size-0.154962134783 %85 %
58Variation Density in Top 30KB   Relevancy-0.1526241861 %81 %
59Entities in Sentences   Relevancy-0.1555511361 %91 %
60Entities in the HTML Tag   Relevancy-0.1555711664 %91 %
61Number of Images   Size-0.153683173 %84 %
62Number of Facebook Pages   Authority-0.158255 %82 %
63Exact Matches in the HTML Tag   Relevancy-0.153651027 %85 %
64Number of H1 Tags   Size-0.154268 %84 %
65Variations in OpenGraph Description   Relevancy-0.153250 %84 %
66Entities in H2 Tags-0.1534647 %91 %
67Number of P Tags   Size-0.151353771 %85 %
68Percentage of DoFollow Links   Authority-0.15998277 %86 %
69Percentage of DoFollow Internal Links   Authority-0.15937177 %81 %
70Number Of JSON-LD Types   Relevancy-0.151551453 %82 %
71Flesch Kincaid Reading Grade Level   Other-0.156292 %85 %
72Variations in OpenGraph Title   Relevancy-0.153155 %84 %
73Number of HTTPS Links   Authority-0.1540012577 %81 %
74Entities in Meta Description Tag   Relevancy-0.148351 %89 %
75Number of Internal Links   Authority-0.1438411376 %81 %
76Number of DoFollow Links   Authority-0.1439412377 %83 %
77Number of Heading Tags   Size-0.14572073 %83 %
78Number of HTML Tags   Size-0.14241691783 %85 %
79Number of Includes   Technology-0.14502679 %80 %
80Variations in Span Tags   Relevancy-0.1479849 %83 %
81Number of HTML Comments   Size-0.143984769 %84 %
82Has JSON-LD Schema Markup   Relevancy-0.141151 %78 %
83Number of H2 Tags   Size-0.1431765 %82 %
84LSI Words in Sentences   Relevancy-0.14706569360 %91 %
85Variations in Section Tags   Relevancy-0.14601637 %81 %
86Has Meta Charset   Technology-0.141171 %80 %
87LSI Words in H1 Tags   Relevancy-0.1421553 %90 %
88Search Result Domain Length   Size-0.14241782 %74 %
89Variations in H3 Tags   Relevancy-0.1435335 %85 %
90Number of Links   Authority-0.1440812277 %82 %
91Average Words Per Sentence   Size-0.141552975 %80 %
92Entities in H3 Tags-0.1431639 %93 %
93Number of CSS Includes   Technology-0.1419971 %76 %
94Variations in Main Tags   Relevancy-0.145105437 %84 %
95Number of DoFollow External Links   Authority-0.14441272 %81 %
96Search Result Uses HTTPS   Other-0.141181 %75 %
97Search Result Host Length   Size-0.14241782 %74 %
98Number of Images without ALT Text   Size-0.131481055 %83 %
99Number of External Links   Authority-0.13631473 %81 %
100Number of Sentences   Size-0.1345812280 %84 %
101Variations in Nav Tags   Relevancy-0.133132146 %86 %
102Has FavIcon   Technology-0.131174 %73 %
103Inline CSS Kilobytes   Size-0.132456665 %82 %
104Search Result URL Length   Size-0.13896095 %62 %
105Has Canonical URL   Authority-0.131169 %77 %
106Number of H3 Tags   Size-0.1340857 %85 %
107Number of Email Addresses   Trust-0.1398541 %77 %
108Variations in Footer Tags   Relevancy-0.13549938 %80 %
109Number of Absolute URLs   Authority-0.1381827081 %83 %
110Leading Variations in H2 Tags   Relevancy-0.134122 %79 %
111Number of LinkedIn Pages   Authority-0.136128 %79 %
112Percentage of DoFollow External Links   Authority-0.13271271 %77 %
113Uses JSON-LD name   Other-0.131150 %75 %
114Number of Questions In Headings   Size-0.137235 %81 %
115Variations in the last 100 words   Relevancy-0.1314481352 %78 %
116LSI Words in Meta Description Tag   Relevancy-0.13221152 %89 %
117Variations making whole H1-H6 Tags   Relevancy-0.132115 %78 %
118Number of Social Pages   Authority-0.1323560 %79 %
119Number of JavaScript Includes   Technology-0.13431779 %80 %
120Number of Instagram Pages   Authority-0.1319243 %75 %
121Number of US Phone Numbers   Trust-0.138331544 %80 %
122Exact Matches in H1-H6 Tags   Relevancy-0.138117 %84 %
123Has Meta Viewport   Technology-0.131180 %77 %
124Number of Social Accounts   Authority-0.1313240 %79 %
125Exact Matches in Sentences   Relevancy-0.1344219 %82 %
126Has Entities in H1 Tags   Relevancy-0.131149 %86 %
127Meta Description Length   Size-0.1333911865 %79 %
128Number of Facebook Accounts   Authority-0.134127 %76 %
129Has Meta Description   Relevancy-0.131165 %77 %
130Has Contact Page   Trust-0.131158 %74 %
131Has OpenGraph Type   Relevancy-0.131160 %73 %
132Uses Schema name   Other-0.131158 %71 %
133Variations in Strong Tags   Relevancy-0.1321226 %81 %
134Has Schema Markup   Relevancy-0.131161 %72 %
135Has Email   Trust-0.131141 %67 %
136Variations making whole A Tags   Relevancy-0.136126 %79 %
137Uses JSON-LD url   Other-0.131145 %72 %
138LSI Words in H2 Tags   Relevancy-0.13982251 %90 %
139Variations making whole H1, H2, and H3 Tags   Relevancy-0.132113 %79 %
140Variations in TITLE Attributes   Relevancy-0.1358537 %78 %
141Word Count in Meta Description   Size-0.12551965 %80 %
142Is Home Page   Other-0.121121 %46 %
143Title Word Count   Size-0.1212881 %78 %
144Uses Schema aggregaterating   Other-0.121110 %57 %
145Number of Forms   Technology-0.1210246 %78 %
146Uses Schema applicationcategory   Other-0.12113 %14 %
147Uses JSON-LD BreadcrumbList   Other-0.121132 %71 %
148Title Length   Size-0.12885181 %80 %
149Page Size Kilobytes   Size-0.1297430881 %75 %
150Has US Phone Number   Trust-0.121144 %72 %
151Exact Matches in Title Tag   Relevancy-0.122115 %81 %
152Variations in Meta Twitter Description   Relevancy-0.122124 %72 %
153Is Article Page   Other-0.121142 %71 %
154Has Form   Technology-0.121146 %74 %
155Uses Schema operatingsystem   Other-0.12113 %13 %
156Exact Matches in Top 30KB   Relevancy-0.1221215 %81 %
157Title Tag Has Entities   Relevancy-0.121160 %88 %
158Is OpenGraph Type Article   Technology-0.121132 %65 %
159Headings Has Question   Other-0.121134 %73 %
160Uses JSON-LD applicationCategory   Other-0.12113 %14 %
161Uses Schema product   Other-0.12117 %48 %
162Uses JSON-LD image   Other-0.121117 %69 %
163Uses Schema image   Other-0.121121 %67 %
164Number of Questions   Size-0.12681065 %81 %
165Variations Making Whole Span Tags   Relevancy-0.1215118 %76 %
166Number of Prices   Size-0.126207466 %80 %
167Uses JSON-LD ListItem   Other-0.121132 %71 %
168Uses JSON-LD description   Other-0.121140 %73 %
169Uses Schema url   Other-0.121154 %68 %
170Has Meta Twitter Card   Authority-0.121152 %65 %
171Number of Questions In H2 Tags   Size-0.124122 %78 %
172Inline JavaScript Kilobytes   Size-0.1251111878 %73 %
173Uses JSON-LD AggregateRating   Other-0.12119 %60 %
174Number of HREF Lang Tags   Size-0.123229 %71 %
175Leading Variations in H3 Tags   Relevancy-0.126116 %78 %
176Uses JSON-LD operatingSystem   Other-0.12113 %13 %
177Search Result Summary Length   Size-0.1219415494 %75 %
178Has OpenGraph Image   Relevancy-0.121152 %73 %
179Number Of Claimed Brands   Other-0.1224223 %77 %
180Variations in Meta Twitter Content   Relevancy-0.122126 %71 %
181Uses JSON-LD Product   Other-0.12116 %49 %
182Uses Schema ratingvalue   Other-0.121110 %56 %
183Variations making whole H1 Tags   Relevancy-0.12117 %82 %
184Percentage of NoFollow Internal Links   Authority-0.1212111 %70 %
185Uses JSON-LD item   Other-0.121122 %67 %
186Has Privacy Policy   Trust-0.121152 %78 %
187Variations Making Whole LI Tags   Relevancy-0.118122 %79 %
188Number of Twitter Accounts   Authority-0.113122 %74 %
189Number of Questions In H3 Tags   Size-0.114115 %79 %
190Uses Schema listitem   Other-0.111139 %65 %
191Has HREF Lang   Technology-0.111110 %63 %
192Number of H4 Tags   Size-0.1122334 %78 %
193Has Apple Touch Icon   Technology-0.111149 %69 %
194Variations in I Tags   Relevancy-0.1117323 %77 %
195Uses Schema description   Other-0.111147 %66 %
196Uses Schema organization   Other-0.111133 %69 %
197Number of Nofollow Links   Authority-0.1130422 %79 %
198Uses Schema website   Other-0.111136 %65 %
199Variations in Class Attributes   Relevancy-0.111314617 %79 %
200Variations in Figure Tags   Relevancy-0.1151612 %75 %