Measures 70306 SEO Factors

68763 Built-In SEO Factors

62094 On-page SEO Factors

6669 Google Maps SEO Factors for Local SEO

1543 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

[ Ahrefs, SEMRush, DomDetailer, SpyFu APIs ]

1396 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 2023-03     previous

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Distinct Entities Used   Diversity-0.29672684 %74 %
2Number of Unique LSI Words Used   Diversity-0.28114532691 %57 %
3Variations in Body Tags   Relevancy-0.265437427588 %80 %
4Number of Top 100 Shared Factors Used   Diversity-0.26403098 %84 %
5Number of Top 200 Shared Factors Used   Diversity-0.25534098 %83 %
6Variations in HTML Tags   Relevancy-0.255437427487 %80 %
7Number of Unique Variations Used   Diversity-0.2537889 %71 %
8Number of Referring Domains   Authority-0.2466717263 %71 %
9Number of Top 50 Shared Factors Used   Diversity-0.24191397 %78 %
10Number of Backlinks   Authority-0.241801473564863 %71 %
11Variations in H1-H6 Tags   Relevancy-0.24140978 %79 %
12Variations in P Tags   Relevancy-0.2413163577 %80 %
13Variations in H1, H2, and H3 Tags   Relevancy-0.24119777 %78 %
14Entities in the HTML Tag   Relevancy-0.2362711274 %83 %
15Entities in Sentences   Relevancy-0.2347310772 %83 %
16Variations in Div Tags   Relevancy-0.232129613585 %79 %
17Variations in Sentences   Relevancy-0.2320724079 %80 %
18Number of No Follow Backlinks   Authority-0.231774744271355 %70 %
19Number of Factors Used   Diversity-0.2353219698 %81 %
20Variations in A Tags   Relevancy-0.2332492876 %79 %
21Variations in Search Result Display URL   Relevancy-0.2312285 %69 %
22Variations in H1 and H2 Tags   Relevancy-0.2362574 %77 %
23Number of Do Follow Backlinks   Authority-0.22221954386754 %69 %
24Variations in LI Tags   Relevancy-0.2213382275 %79 %
25Variations in Search Result Link Text   Relevancy-0.2212284 %64 %
26Term Frequency   Relevancy-0.226387 %77 %
27Number of Includes   Technology-0.21522282 %65 %
28Clean Text Kilobytes   Size-0.211341288 %82 %
29Entities in H2 Tags-0.2137652 %74 %
30Unabridged Word Count   Size-0.2127434194992 %77 %
31Word Count   Size-0.217018144592 %76 %
32Entities in Title Tag   Relevancy-0.217371 %71 %
33Clean Keyword Density in the HTML Tag   Relevancy-0.21191479 %69 %
34Variations in H2 Tags   Relevancy-0.254451 %78 %
35Variations in the Title Tag   Relevancy-0.213276 %67 %
36Number of CSS Includes   Technology-0.218875 %63 %
37LSI Words in Sentences   Relevancy-0.2348363167 %81 %
38Variation Density in Top 30KB   Relevancy-0.19306370 %76 %
39Number of HTML Tags   Size-0.192969104192 %76 %
40Leading Variations in H1, H2, and H3 Tags   Relevancy-0.1915249 %75 %
41Has JSON-LD Schema Markup   Relevancy-0.191152 %67 %
42Entities in H3 Tags-0.1932542 %73 %
43Leading Variations in H1-H6 Tags   Relevancy-0.1918252 %76 %
44Exact Matches in the HTML Tag   Relevancy-0.196801844 %76 %
45Variations in ALT Attributes   Relevancy-0.19107952 %76 %
46Number of Sentences   Size-0.19107210490 %76 %
47Number of Facebook Pages   Authority-0.1911364 %66 %
48Variations in Distinct A Tag HREF Attributes   Relevancy-0.1914583070 %78 %
49Variations in Search Result URL Path   Relevancy-0.1924257 %72 %
50Load Time Milliseconds   Performance-0.1925407176192 %79 %
51Variations in A Tag HREF Attributes   Relevancy-0.1918404670 %78 %
52Variations in First 100 Words   Relevancy-0.19191872 %73 %
53Variations in Script Tags   Relevancy-0.19133897268 %77 %
54Number of P Tags   Size-0.189703987 %77 %
55Number of Questions   Size-0.18139969 %79 %
56Variations in Span Tags   Relevancy-0.184491057 %77 %
57Search Result Domain is .com, .net, or .org   Other-0.18113 %54 %
58Number of HTTPS Links   Authority-0.1850615389 %77 %
59Variations in H1 Tags   Relevancy-0.189265 %68 %
60Number of Internal Links   Authority-0.1848313989 %76 %
61Variations in the Canonical URL   Relevancy-0.1838257 %74 %
62Exact Matches in H1-H6 Tags   Relevancy-0.1811231 %74 %
63Variations in H3 Tags   Relevancy-0.1857337 %76 %
64Number of Links   Authority-0.1850715790 %73 %
65Number of Heading Tags   Size-0.181292288 %76 %
66Variations in Main Tags   Relevancy-0.18101047137 %75 %
67Number of DoFollow Links   Authority-0.1848515090 %76 %
68Variations in Meta Description   Relevancy-0.185258 %70 %
69Search Result Domain is .com   Other-0.18113 %57 %
70Variations in Absolute URLs   Relevancy-0.1842646871 %81 %
71Variations in Search Result URL   Relevancy-0.1714264 %68 %
72Entities in H1 Tags-0.1711258 %66 %
73Number of Images with ALT Text   Size-0.172952283 %78 %
74Page Size Kilobytes   Size-0.1773322792 %77 %
75Number of Images   Size-0.173073288 %75 %
76Variations in Nav Tags   Relevancy-0.1743662549 %74 %
77Number of Absolute URLs   Authority-0.1784024291 %77 %
78Leading Variations in Title Tag   Relevancy-0.171137 %65 %
79Variation Count in Top 30KB   Relevancy-0.1760823277 %73 %
80Exact Matches in Sentences   Relevancy-0.17576531 %75 %
81Variations in OpenGraph Title   Relevancy-0.174258 %65 %
82Variations in OpenGraph Description   Relevancy-0.1746252 %69 %
83Leading Variations in H1 Tags   Relevancy-0.172133 %68 %
84TF/IDF   Relevancy-0.161167 %70 %
85Number of Instagram Pages   Authority-0.1612241 %71 %
86Number of H2 Tags   Size-0.1618776 %75 %
87Variations in Search Result Document File Name   Relevancy-0.164257 %67 %
88Exact Matches in Top 30KB   Relevancy-0.1628329 %67 %
89Number of Questions In Headings   Size-0.1612237 %74 %
90Number of Twitter Accounts   Authority-0.163138 %66 %
91Leading Variations in H2 Tags   Relevancy-0.167124 %75 %
92Exact Matches in Title Tag   Relevancy-0.163128 %68 %
93LSI Words in Title Tag   Relevancy-0.1620565 %79 %
94Variations in TITLE Attributes   Relevancy-0.16215844 %73 %
95Number Of JSON-LD Types   Relevancy-0.16741159 %76 %
96Variations in Section Tags   Relevancy-0.167531939 %75 %
97Has Entities in H2 Tags   Relevancy-0.151153 %68 %
98Entities in Meta Description Tag   Relevancy-0.159356 %67 %
99Variations in Strong Tags   Relevancy-0.1554331 %72 %
100Variations making whole A Tags   Relevancy-0.1538233 %69 %
101Number of H3 Tags   Size-0.1526867 %73 %
102Has Entities in H1 Tags   Relevancy-0.151160 %63 %
103Variations in the last 100 words   Relevancy-0.15190450 %70 %
104Title Tag Has Entities   Relevancy-0.151172 %64 %
105Variations Making Whole LI Tags   Relevancy-0.155127 %66 %
106Variations in Footer Tags   Relevancy-0.151570835 %72 %
107Inline JavaScript Kilobytes   Size-0.154486389 %73 %
108Exact Matches in A Tags   Relevancy-0.1542324 %73 %
109Percentage of DoFollow Internal Links   Authority-0.15937889 %71 %
110Has FavIcon   Technology-0.151178 %64 %
111Number of External Links   Authority-0.152281885 %69 %
112Search Result Number of Dirs in Path   Other-0.153280 %62 %
113LSI Words in H2 Tags   Relevancy-0.15891753 %81 %
114Number of Nofollow Links   Authority-0.15121733 %73 %
115Number of Facebook Accounts   Authority-0.143131 %65 %
116Variations Making Whole Span Tags   Relevancy-0.147121 %72 %
117Number of Questions In H2 Tags   Size-0.144123 %73 %
118Has Schema Markup   Relevancy-0.141169 %65 %
119Uses Schema name   Other-0.141164 %59 %
120Uses Schema question   Other-0.14117 %60 %
121Uses Schema faqpage   Other-0.14116 %60 %
122Flesch Kincaid Reading Grade Level   Other-0.147394 %70 %
123Uses Schema answer   Other-0.14117 %59 %
124Exact Matches in H1 Tags   Relevancy-0.142122 %68 %
125Entities in H4 Tags-0.1426222 %70 %
126Number of Prices   Size-0.1419366073 %71 %
127Exact Matches in H2 Tags   Relevancy-0.145116 %73 %
128Number of LinkedIn Pages   Authority-0.143125 %66 %
129Variations making whole H1-H6 Tags   Relevancy-0.143119 %67 %
130Number of JavaScript Includes   Technology-0.14341688 %65 %
131Headings Has Question   Other-0.141137 %69 %
132Leading Variations in H3 Tags   Relevancy-0.148117 %74 %
133Uses JSON-LD FAQPage   Other-0.14115 %60 %
134Uses JSON-LD Question   Other-0.14116 %58 %
135Has Meta Charset   Technology-0.141182 %59 %
136Uses JSON-LD text   Other-0.14116 %59 %
137Variations in I Tags   Relevancy-0.14176631 %69 %
138Uses JSON-LD Answer   Other-0.14116 %57 %
139Number of HTML Comments   Size-0.147193678 %67 %
140Number of DoFollow External Links   Authority-0.142251584 %66 %
141Variations in Article Tags   Relevancy-0.142991830 %68 %
142Has Entities in H3 Tags   Relevancy-0.141144 %68 %
143Number of Social Pages   Authority-0.1425571 %65 %
144Variations making whole H1, H2, and H3 Tags   Relevancy-0.132117 %66 %
145Number of NoFollow External Links   Authority-0.13120422 %71 %
146Number of HREF Lang Tags   Size-0.1319211 %70 %
147Uses Schema listitem   Other-0.131143 %58 %
148LSI Words in H1 Tags   Relevancy-0.1320456 %75 %
149Variations in H4-H6 Tags   Relevancy-0.1322222 %69 %
150LSI Words in H3 Tags   Relevancy-0.13911747 %79 %
151Number of Questions In H3 Tags   Size-0.137116 %69 %
152Inline CSS Kilobytes   Size-0.131555066 %71 %
153Uses Schema text   Other-0.131111 %61 %
154Uses JSON-LD name   Other-0.131149 %63 %
155Number of Social Accounts   Authority-0.136253 %66 %
156Has Privacy Policy   Trust-0.131157 %64 %
157Is Purchase Page   Other-0.131146 %61 %
158Uses Schema breadcrumblist   Other-0.131142 %59 %
159Percentage of NoFollow Links   Authority-0.1321431 %68 %
160Average Words Per Sentence   Size-0.132853789 %62 %
161Number of Images without ALT Text   Size-0.131661168 %69 %
162Uses Schema url   Other-0.131158 %56 %
163Number of US Phone Numbers   Trust-0.13323940 %68 %
164Is Store Page   Other-0.131147 %60 %
165Number of Forms   Technology-0.1318368 %61 %
166Variations in H4 Tags   Relevancy-0.1316117 %67 %
167Exact Matches in Meta Description   Relevancy-0.132118 %70 %
168Has Terms of Service   Trust-0.121135 %60 %
169Variations in ID Attributes   Relevancy-0.12365213 %72 %
170Has Canonical URL   Authority-0.121178 %64 %
171Variations in Search Result Summary   Relevancy-0.1246384 %45 %
172Variations making whole H1 Tags   Relevancy-0.121111 %63 %
173Title Word Count   Size-0.1219990 %57 %
174Has Contact Page   Trust-0.121165 %55 %
175Uses JSON-LD ListItem   Other-0.121137 %57 %
176Meta Description Tag Has Entities   Relevancy-0.121157 %61 %
177Number of H4 Tags   Size-0.12115444 %68 %
178Percentage of DoFollow Links   Authority-0.12999090 %67 %
179Uses JSON-LD url   Other-0.121147 %59 %
180Uses Schema description   Other-0.121149 %52 %
181Search Result Uses HTTPS   Other-0.121191 %68 %
182Uses JSON-LD BreadcrumbList   Other-0.121136 %58 %
183Title Has Sales Words   Other-0.121113 %62 %
184Uses JSON-LD headline   Other-0.121117 %47 %
185Has Apple Touch Icon   Technology-0.121150 %62 %
186Percentage of NoFollow Internal Links   Authority-0.1214219 %64 %
187Search Result Domain Length   Size-0.12281892 %59 %
188LSI Words in Meta Description Tag   Relevancy-0.1238950 %77 %
189Search Result Host Length   Size-0.12281892 %56 %
190Has Meta Viewport   Technology-0.121185 %63 %
191Uses Schema person   Other-0.121122 %48 %
192Has Meta Twitter Card   Authority-0.121151 %56 %
193Has US Phone Number   Trust-0.121137 %54 %
194Variations in Figure Tags   Relevancy-0.12371913 %68 %
195Variations in B Tags   Relevancy-0.1225315 %68 %
196Variations in Meta Twitter Description   Relevancy-0.125120 %61 %
197Uses Schema headline   Other-0.121121 %46 %
198Has HREF Lang   Technology-0.121112 %63 %
199Exact Matches in Questions   Relevancy-0.129111 %78 %
200Uses JSON-LD description   Other-0.121141 %53 %