Top SEO Factors




Top SEO Factors - 2021-10-22      Previous - Next

Understanding The Top Factors Data

We measure up to 2100 possible SEO factors and we use both Spearman's and Pearson's correlation coefficients to help identify likely ranking factors that may be contributing to the sort order of the search results. To date this method has been highly successful in helping top SEOs rank pages. The factors you see in this report are the strongest correlations of the 2100 factors. We continue to measure all possible factors because we don't know which factors will stop working or which factors will start working again. We still suspect we don't know all the factors. So in general, if it is measurable and plausible we will measure it going forward.

Keywords

Any of the keyword variations, including the exact match, Google makes bold in the search results.

Search Terms

The exact match search terms you used in Google.

Entities

Any term that has a wikipedia page, GMB, MREID. These are nouns that Google's AI understands topically.

LSI Words

An industry misnomer. These tend to generally be statistically discovered entities. No two implementations of LSI are the same. SEOs use LSI words when entity recognition isn't available in their language. The lists tend to have a lot of overlap and they are used the same... just sprinkle them in your content.

Search Result

If a factor name mentions "Search Result" then that factor is measuring something about how the page is presented in the Google search results.

#1 Max Column

The maximum measurement found in the #1 position in Google.

Page 1 Avg Column

The average page 1 average across thousands of keywords in Google.

Keywords Column

The percentage of thousands of keywords that this factor was a strong correlation for.

Why are you sharing such valuable information?

We share the information because it helps our industry learn about SEO. The measurement facts about how pages in the number one rank position are tuned typically break people's belief-based assumptions about how search works. This information is very inefficient for SEO in general. People still need Cora SEO Software because the amount of each factor you need to compete will change from keyword to keyword and URL to URL. So the information in this report might be good for some keywords but it might be too little or too much for other keywords. At the end of the day SEO is about ranking efficiently, especially if you are a professional full time SEO. Tuning your page to the correct amount for your keyword competitors is the key to efficient SEO.

Some factors aren't meant to be tuned.

Some factors on this list are meant to inform us if Google is using certain algorithms or parts of algorithms. If you generally have no idea how to tune for something then skip it or go learn about it. If there are HTML tags, HTML attributes, or Schema Objects you don't know then please look them up before contacting us. W3Schools HTML Reference, Schema.org Reference


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Top SEO Factors - 2021-10-22 - View Factors By Date
OrdinalFactor IDName#1 MaxPage 1 AvgCorrelationCorrelation By PageKeywords
1ENT000aNumber of Entities Used5928-0.30-0.6453.72%
2CPZZZNumber of Factors Used211135-0.24-0.4990.14%
3CP470Keywords in the HTML Tag60,781319-0.24-0.5294.39%
4CPX010Keywords in Div Tags39,182227-0.23-0.5194.08%
5CP134Keywords in Body Tag54,957274-0.22-0.5195.30%
6CP475Term Frequency115-0.22-0.4892.26%
7CP465Keywords in P Tags3,74043-0.22-0.5089.98%
8CP129Keywords in A Tags6,31740-0.21-0.4592.72%
9CP161Keywords in H1-H6 Tags2798-0.21-0.4792.72%
10CP157Keywords in H1, H2, and H3 Tags2017-0.21-0.4692.26%
11CP127bKeywords in Unique A Tag HREFs5,29546-0.21-0.4467.22%
12ENT009Entities in Title Tag63-0.21-0.5050.38%
13CP127Keywords in A Tag HREFs3,13355-0.21-0.4591.81%
14ENT003Entities in H2 Tags305-0.20-0.4952.05%
15CP469Keywords in Sentences3,17531-0.20-0.4690.29%
16CP153Keywords in H1 and H2 Tags954-0.20-0.4690.90%
17CP071Search Result Display URL Matches31-0.20-0.4877.09%
18CP097Search Result Link Text Matches31-0.20-0.4877.24%
19CP375Keywords in LI Tags1,66222-0.20-0.4594.23%
20CP061Ahrefs Referring Class C Addresses20931-0.20-0.3031.56%
21ENT004Entities in H3 Tags205-0.20-0.4751.90%
22CP063Ahrefs Referring IP Addresses26338-0.20-0.2931.56%
23CP062Ahrefs Referring Domains78347-0.20-0.3031.56%
24LSI002LSI Words in Sentences3,220449-0.19-0.4293.63%
25CP067Ahrefs Text Backlinks77,2832,063-0.19-0.2532.02%
26CP054Ahrefs NoFollow Backlinks18,389259-0.19-0.2931.87%
27GD001Google Variation Density3214-0.19-0.4763.58%
28CP135Body Tag Size Kilobytes28180-0.19-0.4690.29%
29CP458Page Size Kilobytes480145-0.19-0.4883.46%
30CP999Search Result Path Matches42-0.19-0.4773.75%
31CP064Ahrefs Referring Pages77,3172,074-0.19-0.2532.02%
32CP002Ahrefs Backlinks77,3172,074-0.19-0.2532.02%
33CKWD001Clean Keyword Density in the HTML Tag2025-0.19-0.4372.69%
34CP160Leading Keywords in H1-H6 Tags362-0.19-0.4486.49%
35CP059Ahrefs Rank3214-0.19-0.3927.16%
36CP140Clean Text Kilobytes3311-0.19-0.4186.34%
37CP481Keywords in Title Tag152-0.19-0.4579.82%
38CP165Keywords in H2 Tags823-0.19-0.4588.62%
39CPXX888Number of HTML Tags3,347870-0.18-0.4685.43%
40CP492Word Count3,8471,359-0.18-0.4287.41%
41CP492bUnabridged Word Count4,7901,744-0.18-0.4188.16%
42CP465cKeywords in script Tags34,268112-0.18-0.4593.47%
43CP113Search Result URL Matches102-0.18-0.4675.87%
44CP471Keywords in Span Tags1,62113-0.18-0.4189.53%
45CP156Leading Keywords in H1, H2, and H3 Tags252-0.18-0.4386.65%
46CP128Keywords in Alt Attributes1808-0.18-0.4086.95%
47CP108Search Result Summary Length353165-0.18-0.4483.92%
48CP137Keywords in the Canonical URL392-0.18-0.4581.94%
49CP134aSearch Terms in Body Tag12811-0.18-0.4190.74%
50CP468Number of Sentences14851-0.18-0.4083.00%
51CPXR24Number of P Tags12436-0.17-0.4282.85%
52CP124aKeywords in Absolute URLs13,71171-0.17-0.4089.53%
53GD003Google Density Variations7,57583-0.17-0.4259.18%
54CP381Keywords in Meta Descriptions462-0.17-0.4384.07%
55CPXR018Keywords in Nav Tags5,19034-0.17-0.4187.71%
56CP470aSearch Terms in the HTML Tag1487-0.17-0.4086.19%
57CP146Keywords in the First 100 Words2078-0.17-0.4180.58%
58CP425Number of HTTPS Links419140-0.17-0.3986.19%
59CP435Number of Links422147-0.17-0.3984.22%
60CP004Ahrefs Dofollow Backlinks75,9191,860-0.16-0.2330.65%
61ENT008Entities in Meta Description Tag73-0.16-0.4346.59%
62CP410Number of DoFollow Links415141-0.16-0.3883.92%
63CP431Number of Internal Links400131-0.16-0.3884.98%
64CPXR003Number of Heading Tags4721-0.16-0.4085.43%
65CP169Keywords in H3 Tags1063-0.16-0.3987.25%
66CP476TF/IDF11-0.16-0.4581.49%
67CP426Number of Images8127-0.16-0.3783.76%
68ENT005Entities in H4 Tags92-0.16-0.4349.77%
69CP072Search Result Document Matches61-0.16-0.4270.41%
70CP152Keywords in H1 Tags151-0.16-0.3978.00%
71DD010DomDetailer Majestic Referring Subnets39,60611,262-0.16-0.1925.34%
72CP038Ahrefs Has NoFollow Backlinks11-0.16-0.4331.41%
73CP385Keywords in Meta OpenGraph Content131-0.16-0.4376.78%
74DD006DomDetailer Majestic IPs171,37742,144-0.16-0.1926.10%
75DD008DomDetailer Majestic Referring Domains1,314,298274,722-0.16-0.2026.10%
76CP427Number of Images with Alt Text6918-0.16-0.3684.67%
77CP383Keywords in Meta OpenGraph Description522-0.16-0.4080.42%
78QS003Number of Questions255-0.15-0.3780.73%
79LSI001LSI Words in Title Tag144-0.15-0.3690.44%
80CP484Leading Keywords in Title Tag10-0.15-0.4377.24%
81CP045Ahrefs Has Text Backlinks11-0.15-0.4330.96%
82CP159aSearch Terms in H1-H6 Tags81-0.15-0.3987.41%
83CPJLDxSANumber Of JSON-LD Types248-0.15-0.3761.00%
84CP391Number of Absolute URLs435131-0.15-0.3882.09%
85CPXR005Number of H2 Tags156-0.15-0.3883.00%
86ENT002Entities in H1 Tags42-0.15-0.3845.37%
87ENT018Entities in Sentences52477-0.15-0.3295.14%
88CP374Keywords in the last 100 words2035-0.15-0.3978.60%
89CP017Ahrefs Has Backlinks11-0.15-0.4230.65%
90DD015DomDetailer Moz PA6439-0.15-0.3623.52%
91GD004Google Density Exact Matches452-0.15-0.3951.44%
92CPX003Keywords in Main Tags8,93666-0.15-0.4387.41%
93CP109Search Result Summary Text Matches553-0.15-0.4273.60%
94CP151Leading Keywords in H1 Tags10-0.15-0.4076.63%
95CP358Inline Javascript Kilobytes13331-0.15-0.3579.97%
96CP019Ahrefs Has DoFollow Backlinks10-0.15-0.4030.05%
97CPXR006Number of H3 Tags297-0.15-0.3383.31%
98LSI006LSI Words in H2 Tags7811-0.15-0.3691.20%
99CP472Keywords making whole Span Tags71-0.15-0.3782.09%
100QS004Number of Questions In Headings51-0.14-0.3235.36%
101CP477Keywords in Title Attributes3187-0.14-0.3886.34%
102CP164Leading Keywords in H2 Tags91-0.14-0.3883.46%
103DD002DomDetailer Facebook Shares4,552,219-2,889,984-0.14-0.2224.73%
104CPX013Keywords in Footer Tags2,42815-0.14-0.3383.61%
105CP005Ahrefs Domain Rating7833-0.14-0.3326.10%
106ENT013Has Entities in H2 Tags11-0.14-0.4347.80%
107CP125Keywords making whole A Tags41-0.14-0.3583.46%
108DD005DomDetailer Majestic CF5732-0.14-0.3324.43%
109DD013DomDetailer Moz DA7638-0.14-0.3122.76%
110ENT001Entities in HTML Tag1,893253-0.14-0.3094.54%
111CP104zSearch Result Has Publish Date11-0.14-0.439.26%
112CP473Keywords in Strong Tags1503-0.14-0.3583.16%
113CP130Keywords in Article Tags2,04619-0.14-0.4078.45%
114CP469aSearch Terms in Sentences212-0.14-0.3586.80%
115DD012DomDetailer Majestic TF6024-0.14-0.3123.52%
116CP355Keywords in ID Attributes3912-0.14-0.3881.94%
117CP413Number of External Links5616-0.14-0.2976.78%
118CP126aSearch Terms in A Tags372-0.14-0.3686.49%
119CP483aSearch Terms in the Title Tag10-0.13-0.3879.36%
120CP158Keywords making whole H1-H6 Tags40-0.13-0.3874.96%
121QS012Headings Has Question10-0.13-0.4173.44%
122CP467Keywords in Section Tags1,88321-0.13-0.3885.58%
123QS006Number of Questions In H2 Tags21-0.13-0.3576.78%
124CP357Inline CSS Kilobytes8126-0.13-0.3477.09%
125CP139Keywords in Class Attributes12,42538-0.13-0.3583.92%
126DD007DomDetailer Majestic Links66,452,5392,426,235-0.13-0.1726.10%
127DD016DomDetailer Moz Rank84-0.13-0.3122.91%
128CP353Head Size Kilobytes13039-0.13-0.3278.15%
129CP177Keywords in H4-H6 Tags791-0.13-0.3583.16%
130DD014DomDetailer Moz Links69,039,67212,733,679-0.13-0.2124.89%
131CP213Has FavIcon11-0.13-0.3969.50%
132CP173Keywords in H4 Tags571-0.13-0.3682.85%
133CP376Keywords making whole LI Tags31-0.13-0.3583.31%
134LSI003LSI Words in Meta Description Tag297-0.13-0.3288.62%
135CP050Ahrefs Internal Links34883-0.13-0.2932.17%
136LSI007LSI Words in H3 Tags12012-0.13-0.3190.59%
137CP168Leading Keywords in H3 Tags151-0.13-0.3680.73%
138CP377Load Time Milliseconds28,8912,223-0.13-0.2771.17%
139QS007Number of Questions In H3 Tags31-0.13-0.3477.54%
140CP154Keywords making whole H1, H2, and H3 Tags20-0.13-0.3775.57%
141CP099Search Result Number of Dirs in Path32-0.13-0.3259.48%
142ENT010Title Tag Has Entities11-0.13-0.3840.97%
143CP409Number of DoFollow External Links4314-0.13-0.2672.99%
144ENT014Has Entities in H3 Tags11-0.13-0.3947.80%
145CP440Number of NoFollow Links466-0.12-0.3177.69%
146CP077Search Result Domain Matches50-0.12-0.3748.25%
147CP380Meta Description Length393127-0.12-0.3174.36%
148CP048Ahrefs Image Backlinks10,403270-0.12-0.2727.92%
149ENT012Has Entities in H1 Tags11-0.12-0.3842.03%
150CP479iiTitle Has Sentiment Words10-0.12-0.3870.86%
151CP007Ahrefs External Links10615-0.12-0.2730.65%
152LSI005LSI Words in H1 Tags173-0.12-0.2884.83%
153CPJLD011Has JSON-LD Answer10-0.12-0.3864.64%
154CP479Title Has Sales Words10-0.12-0.3770.41%
155CP114Search Result Uses HTTPS11-0.12-0.3564.19%
156CP032Ahrefs Has Image Backlinks10-0.12-0.3525.64%
157CPJLD217Has JSON-LD Question10-0.12-0.3865.10%
158CP313Has Privacy Policy11-0.12-0.3875.11%
159CP356Keywords in I Tags952-0.12-0.3476.63%
160CP451Number of US Phone Numbers856-0.12-0.3277.09%
161CP052Ahrefs Linked Root Domains166-0.12-0.3031.11%
162CPXR007Number of H4 Tags204-0.12-0.3282.25%
163CPXR011Keywords in Button Tags1,3703-0.12-0.3680.88%
164CP460Percentage of DoFollow Internal Links9480-0.12-0.3070.71%
165CP439Number of NoFollow Externa Links233-0.12-0.3280.27%
166CP150a2Search Terms in H2 Tags40-0.12-0.3486.49%
167CP434Number of LinkedIn Pages20-0.12-0.3370.56%
168CP444Number of Social Accounts31-0.12-0.3174.66%
169CP481bWord Count in Meta Description Tag7020-0.12-0.3075.11%
170CP172Leading Keywords in H4 Tags80-0.12-0.3574.96%
171ENT011Meta Description Tag Has Entities11-0.12-0.3742.03%
172CPJLDxCBNumber Of Claimed Brands61-0.12-0.3553.87%
173CP414Number of Facebook Accounts21-0.12-0.3269.50%
174CP150aSearch Terms in H1 Tags10-0.12-0.3378.15%
175CP176Leading Keywords in H4-H6 Tags110-0.12-0.3377.09%
176CP104bSearch Result Publish Date2,002,394,6781,910,018,002-0.12-0.3741.73%
177CP207Has Contact Page11-0.12-0.3760.85%
178CP424Number of HREF Lang Tags111-0.12-0.3375.87%
179CP309Has OpenGraph Image11-0.12-0.3762.82%
180CP445Number of Social Pages93-0.12-0.2572.69%
181CP096Search Result Link Text Length7350-0.12-0.3360.55%
182CP070Ahrefs Word Count4,4241,203-0.12-0.2615.33%
183ENT015Has Entities in H4 Tags10-0.12-0.3642.03%
184CP225Has Meta Description11-0.11-0.3569.35%
185CP418Number of Forms92-0.11-0.3071.17%
186CP133Keywords in B Tags2012-0.11-0.3376.02%
187CP449Number of Twitter Accounts21-0.11-0.3072.84%
188CP354Keywords in Host Citations1,2518-0.11-0.3178.15%
189CP056Ahrefs Pages61-0.11-0.2530.35%
190CP432Number of JavaScript Includes3014-0.11-0.2870.41%
191CP345Has Terms of Service10-0.11-0.3570.41%
192CPXR015Keywords in Figure Tags9927-0.11-0.3374.20%
193CP384Keywords in Meta OpenGraph Site Name30-0.11-0.3370.41%
194CP480Title Length8157-0.11-0.3061.31%
195CP208Has Copyright11-0.11-0.3468.89%
196CPJLD007Has JSON-LD AggregateRating10-0.11-0.3757.81%
197CP204Has Canonical URL11-0.11-0.3573.44%
198DD011DomDetailer Majestic Referring .gov Links16,846,8992,858,669-0.11-0.2024.28%
199CP464Percentage of NoFollow Links224-0.11-0.2769.20%
200CPJLD122Has JSON-LD ImageObject10-0.11-0.3761.31%


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