Measures 140709 SEO Factors

138987 Built-In SEO Factors

130075 On-page SEO Factors

8912 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 2022-5     previous - today - next

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

NameCorrelation#1 MaxPage 1 AvgUsage %Searches %
1Number of Top 50 Shared Factors Used   Diversity-0.38442191 %94 %
2Number of Top 100 Shared Factors Used   Diversity-0.36894294 %93 %
3Number of Factors Used   Diversity-0.3522212997 %94 %
4Number of Distinct Entities Used   Diversity-0.33652695 %68 %
5Number of Top 200 Shared Factors Used   Diversity-0.321537894 %92 %
6Variations in HTML Tags   Relevancy-0.285883624388 %95 %
7Variations in Body Tags   Relevancy-0.274867622090 %93 %
8Variations in H1-H6 Tags   Relevancy-0.26659981 %91 %
9Variations in H1, H2, and H3 Tags   Relevancy-0.25603880 %91 %
10Variations in P Tags   Relevancy-0.2545013977 %93 %
11Variations in Div Tags   Relevancy-0.252559313585 %95 %
12Variations in Sentences   Relevancy-0.2439953076 %92 %
13Variations in H1 and H2 Tags   Relevancy-0.24140578 %90 %
14Ahrefs Referring Domains   Authority-0.24271911863 %14 %
15Ahrefs Referring Class C Addresses   Authority-0.2411836462 %14 %
16Variations in A Tags   Relevancy-0.2435852880 %92 %
17Entities in H2 Tags-0.2484760 %67 %
18Ahrefs Referring IP Addresses   Authority-0.2421108962 %14 %
19Entities in H3 Tags-0.2357648 %65 %
20Entities in Title Tag   Relevancy-0.2328378 %60 %
21Variation Position Variance-0.237631258288 %69 %
22Ahrefs Text Backlinks   Authority-0.2310807671908662 %14 %
23Ahrefs Backlinks   Authority-0.2210808561888963 %14 %
24Ahrefs Referring Pages   Authority-0.2210808591888963 %14 %
25LSI Words in Sentences   Relevancy-0.22270463774 %97 %
26Variations in LI Tags   Relevancy-0.2213491971 %91 %
27Average Variation Position-0.2216377523089 %69 %
28Ahrefs NoFollow Backlinks   Authority-0.22258129235354 %14 %
29Term Frequency   Relevancy-0.226387 %93 %
30Body Tag Size Kilobytes   Size-0.222818781 %93 %
31Variations in Search Result Display URL   Relevancy-0.213286 %80 %
32Variations in Search Result Link Text   Relevancy-0.213286 %80 %
33Average Exact Match Position-0.2115028235541 %58 %
34Variations in H2 Tags   Relevancy-0.21122452 %92 %
35Exact Match Position Variance-0.216857107936 %53 %
36Clean Keyword Density in the HTML Tag   Relevancy-0.21205483 %83 %
37Ahrefs Dofollow Backlinks   Authority-0.219086991691355 %14 %
38Unabridged Word Count   Size-0.215072190496 %90 %
39Number of Sentences   Size-0.212466993 %88 %
40Variations in ALT Attributes   Relevancy-0.21332853 %90 %
41Clean Text Kilobytes   Size-0.21321292 %89 %
42Leading Variations in H1-H6 Tags   Relevancy-0.2135255 %87 %
43Entities in Sentences   Relevancy-0.215699365 %98 %
44Word Count   Size-0.214161151296 %89 %
45Keywords in pages top 10 most used phrases-0.2121269 %87 %
46Variations in Script Tags   Relevancy-0.21101144165 %93 %
47Variations in A Tag HREF Attributes   Relevancy-0.2126725077 %91 %
48Variations in Distinct A Tag HREF Attributes   Relevancy-0.216753477 %91 %
49Variations in the Title Tag   Relevancy-0.217279 %80 %
50Leading Variations in H1, H2, and H3 Tags   Relevancy-0.228252 %87 %
51Variation Density in Top 30KB   Relevancy-0.2306377 %82 %
52Number of P Tags   Size-0.21364191 %87 %
53Page Size Kilobytes   Size-0.236515996 %88 %
54Entities in the HTML Tag   Relevancy-0.2153426868 %97 %
55Keywords in pages top 5 most used phrases-0.211259 %86 %
56Variations in Meta Description   Relevancy-0.213262 %82 %
57Exact Matches in the HTML Tag   Relevancy-0.23831538 %89 %
58Variations in Nav Tags   Relevancy-0.1963492450 %87 %
59Variations in H3 Tags   Relevancy-0.19464339 %88 %
60Number of HTML Tags   Size-0.19377689997 %88 %
61Exact Matches in Body Tag   Relevancy-0.192521433 %91 %
62Variations in Span Tags   Relevancy-0.197761158 %91 %
63Number of Questions   Size-0.19109769 %85 %
64Ahrefs Has NoFollow Backlinks   Authority-0.191153 %13 %
65Variations in the Canonical URL   Relevancy-0.1961261 %82 %
66Entities in Meta Description Tag   Relevancy-0.1947362 %60 %
67DomDetailer Majestic CF   Authority-0.19663795 %25 %
68Number Of JSON-LD Types   Relevancy-0.19491058 %83 %
69Number of Heading Tags   Size-0.19982293 %89 %
70Ahrefs Has Dofollow Backlinks   Authority-0.181155 %13 %
71Variations in H1 Tags   Relevancy-0.1818269 %79 %
72DomDetailer Majestic Referring Subnets   Authority-0.18760471339296 %26 %
73Variations in OpenGraph Description   Relevancy-0.1834254 %77 %
74DomDetailer Majestic IPs   Authority-0.183403084740896 %26 %
75DomDetailer Majestic Referring Domains   Authority-0.18234702029044496 %27 %
76LSI Words in Title Tag   Relevancy-0.1820672 %91 %
77Variations in Absolute URLs   Relevancy-0.1853134868 %89 %
78LSI Words in H2 Tags   Relevancy-0.181061860 %95 %
79DomDetailer Moz PA   Authority-0.18744597 %24 %
80Has Entities in H2 Tags   Relevancy-0.181164 %60 %
81Variations in Search Result URL Path   Relevancy-0.1810262 %77 %
82Variations in OpenGraph Title   Relevancy-0.187261 %74 %
83Ahrefs Has Text Backlinks   Authority-0.181161 %13 %
84Entities in H4 Tags-0.1821325 %63 %
85Exact Matches in Top 30KB   Relevancy-0.1834431 %63 %
86Has Entities in H3 Tags   Relevancy-0.181152 %57 %
87Ahrefs Has Backlinks   Authority-0.181162 %14 %
88Variations in Search Result Document File Name   Relevancy-0.188267 %65 %
89TF/IDF   Relevancy-0.182169 %82 %
90DomDetailer Majestic Links   Authority-0.1874182115780683996 %27 %
91Keywords in pages top 3 most used phrases-0.187149 %86 %
92DomDetailer Facebook Shares   Authority-0.178150459-563869290 %25 %
93Exact Matches in H1-H6 Tags   Relevancy-0.1711228 %87 %
94Variations in Main Tags   Relevancy-0.17132806236 %87 %
95Number of Images with ALT Text   Size-0.17761985 %88 %
96Leading Variations in Title Tag   Relevancy-0.171139 %78 %
97Exact Match Clustering Score-0.17501636 %49 %
98Number of H2 Tags   Size-0.1715779 %88 %
99DomDetailer Majestic TF   Authority-0.17722886 %25 %
100DomDetailer Moz DA   Authority-0.17884297 %24 %
101Number of Questions In Headings   Size-0.176239 %35 %
102Variation Count in Top 30KB   Relevancy-0.1757434182 %78 %
103Number of HTTPS Links   Authority-0.1747914293 %86 %
104Variations in Search Result URL   Relevancy-0.1718264 %78 %
105Number of Images   Size-0.171032992 %88 %
106LSI Words in H3 Tags   Relevancy-0.17941752 %93 %
107Entities in H1 Tags-0.1720265 %58 %
108Number of Absolute URLs   Authority-0.1743014894 %85 %
109DomDetailer Moz Rank   Authority-0.179595 %22 %
110Variations in First 100 Words   Relevancy-0.17194868 %79 %
111Variations in Strong Tags   Relevancy-0.16152332 %85 %
112Variations in Footer Tags   Relevancy-0.161772936 %82 %
113Number of H3 Tags   Size-0.1622871 %85 %
114Title Tag Has Entities   Relevancy-0.161181 %53 %
115Number of Internal Links   Authority-0.1645312993 %86 %
116Variation Clustering Score-0.16554187 %60 %
117Ahrefs External Links   Authority-0.162222668 %12 %
118Headings Has Question   Other-0.161141 %76 %
119Number of Links   Authority-0.1648014694 %86 %
120Variations in Search Result Summary   Relevancy-0.1660390 %74 %
121DomDetailer Moz Links   Authority-0.16740827391156624996 %25 %
122Ahrefs Internal Links   Authority-0.1652812472 %13 %
123Leading Variations in H1 Tags   Relevancy-0.163135 %78 %
124Variations in Article Tags   Relevancy-0.1642182434 %79 %
125Number of DoFollow Links   Authority-0.1647314194 %85 %
126Leading Variations in H2 Tags   Relevancy-0.1611125 %86 %
127Ahrefs Linked Root Domains   Authority-0.1619871 %13 %
128Has Entities in H1 Tags   Relevancy-0.161172 %56 %
129Number of Questions In H2 Tags   Size-0.164125 %79 %
130Variations in the last 100 words   Relevancy-0.16201556 %80 %
131Meta Description Tag Has Entities   Relevancy-0.161165 %52 %
132Ahrefs Image Backlinks-0.16299372464123 %12 %
133Has JSON-LD Answer-0.15117 %64 %
134Exact Matches in Sentences   Relevancy-0.1529222 %91 %
135Has JSON-LD Question-0.15117 %64 %
136Variations making whole A Tags   Relevancy-0.157134 %83 %
137Variations in Section Tags   Relevancy-0.1515061937 %87 %
138Ahrefs Pages   Size-0.156273 %12 %
139LSI Words in Meta Description Tag   Relevancy-0.1549956 %91 %
140Number of Questions In H3 Tags   Size-0.154118 %77 %
141Ahrefs Has Image Backlinks   Authority-0.151123 %11 %
142Inline JavaScript Kilobytes   Size-0.151453291 %81 %
143Has Entities in H4 Tags   Relevancy-0.151128 %54 %
144Inline CSS Kilobytes   Size-0.15913566 %81 %
145Variations in ID Attributes   Relevancy-0.15389215 %81 %
146Variations in TITLE Attributes   Relevancy-0.15411736 %87 %
147Variations Making Whole LI Tags   Relevancy-0.156127 %82 %
148Search Result Link Text Has Year   Other-0.141113 %65 %
149Variations in H4-H6 Tags   Relevancy-0.149222 %82 %
150LSI Words in H1 Tags   Relevancy-0.1416563 %89 %
151Head Size Kilobytes   Size-0.141284791 %76 %
152DomDetailer Majestic GOV Backlinks   Authority-0.1431500869309458040 %24 %
153Has JSON-LD ImageObject-0.141138 %59 %
154Variations in I Tags   Relevancy-0.14508734 %79 %
155Variations making whole H1-H6 Tags   Relevancy-0.144117 %79 %
156Has JSON-LD Website-0.141136 %55 %
157Search Result Summary Length   Size-0.1422315497 %72 %
158Is Article Page   Other-0.141154 %61 %
159Exact Matches in Title Tag   Relevancy-0.142123 %84 %
160Title Has Year   Other-0.141113 %74 %
161Number of US Phone Numbers   Trust-0.14126840 %80 %
162Is OpenGraph Type Article   Technology-0.141142 %61 %
163Variations making whole H1, H2, and H3 Tags   Relevancy-0.142115 %77 %
164Keywords in pages most used phrase-0.142127 %80 %
165Number Of Claimed Brands   Other-0.1427220 %76 %
166Exact Matches in H1 Tags   Relevancy-0.142120 %81 %
167Number of H4 Tags   Size-0.1474545 %79 %
168Has US Phone Number   Trust-0.141139 %64 %
169Has Meta Twitter Card   Authority-0.141151 %60 %
170Has Schema Markup   Relevancy-0.141169 %71 %
171Exact Match Density in Top 30KB   Relevancy-0.142118 %35 %
172Exact Matches in A Tags   Relevancy-0.1441222 %86 %
173Load Time Milliseconds   Performance-0.1415489235397 %66 %
174Variations in H4 Tags   Relevancy-0.1411117 %82 %
175Has XMLRPC   Technology-0.141133 %52 %
176Has JSON-LD WebPage-0.141136 %54 %
177Has JSON-LD Organization-0.131133 %61 %
178Title Has Sales Words   Other-0.131119 %69 %
179Exact Matches in H2 Tags   Relevancy-0.135115 %86 %
180Title Has Sentiment Words   Other-0.131119 %68 %
181Number of Prices   Size-0.133493572 %77 %
182Ahrefs Redirects   Authority-0.136951310 %11 %
183Number of External Links   Authority-0.13631889 %76 %
184Leading Variations in H3 Tags   Relevancy-0.1316117 %82 %
185Number of Nofollow Links   Authority-0.1350738 %78 %
186Variations Making Whole Span Tags   Relevancy-0.138120 %87 %
187Ahrefs Has Internal Links   Authority-0.131170 %12 %
188Word Count in Meta Description   Size-0.13902272 %74 %
189Is Store Page   Other-0.131142 %66 %
190Ahrefs Has External Links   Authority-0.131167 %11 %
191Has FavIcon   Technology-0.131180 %69 %
192Flesch Kincaid Reading Grade Level   Other-0.139493 %31 %
193Ahrefs Has Linked Root Domains   Authority-0.131170 %11 %
194Percentage of NoFollow Links   Authority-0.1329536 %72 %
195Number of NoFollow External Links   Authority-0.1326426 %78 %
196Number of Facebook Pages   Authority-0.136367 %73 %
197Entities in H5 Tags-0.13719 %53 %
198Has Meta Charset   Technology-0.131187 %61 %
199Has Privacy Policy   Trust-0.131155 %69 %
200Number of Meta Generator Tags   Technology-0.132137 %55 %