Top SEO Factors




Top SEO Factors - 2021-10-28      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 - 2021-10-28 - View Factors By Date
OrdinalFactor IDName#1 MaxPage 1 AvgCorrelationCorrelation By PageKeywords
1ENT000aNumber of Entities Used5927-0.29-0.6360.76%
2CPZZZNumber of Factors Used211134-0.25-0.5191.14%
3CP470Keywords in the HTML Tag16,251175-0.24-0.5195.50%
4CPX010Keywords in Div Tags10,802127-0.23-0.5095.10%
5CP134Keywords in Body Tag12,179147-0.23-0.5295.10%
6CP061Ahrefs Referring Class C Addresses43233-0.22-0.3528.34%
7CP062Ahrefs Referring Domains1,17346-0.22-0.3428.61%
8CP063Ahrefs Referring IP Addresses1,27544-0.22-0.3428.34%
9CP161Keywords in H1-H6 Tags1237-0.22-0.4893.05%
10CP067Ahrefs Text Backlinks1,191,1206,375-0.22-0.2928.34%
11CP475Term Frequency95-0.22-0.4793.87%
12CP465Keywords in P Tags95631-0.22-0.4992.10%
13CP157Keywords in H1, H2, and H3 Tags996-0.22-0.4793.32%
14CP064Ahrefs Referring Pages1,191,1236,389-0.22-0.2828.34%
15CP002Ahrefs Backlinks1,191,1246,389-0.22-0.2828.34%
16ENT003Entities in H2 Tags305-0.21-0.5158.99%
17CP129Keywords in A Tags1,34026-0.21-0.4694.41%
18CP054Ahrefs NoFollow Backlinks12,557220-0.21-0.3228.07%
19CP059Ahrefs Rank3215-0.21-0.4425.07%
20CP153Keywords in H1 and H2 Tags524-0.21-0.4892.10%
21CP097Search Result Link Text Matches31-0.21-0.5080.38%
22CP071Search Result Display URL Matches31-0.21-0.5080.38%
23CP127Keywords in A Tag HREFs1,02545-0.21-0.4592.51%
24CP127bKeywords in Unique A Tag HREFs25430-0.20-0.4476.16%
25ENT009Entities in Title Tag62-0.20-0.4957.36%
26ENT004Entities in H3 Tags215-0.20-0.4858.86%
27LSI002LSI Words in Sentences3,220441-0.20-0.4494.69%
28CP469Keywords in Sentences81422-0.20-0.4691.01%
29CP375Keywords in LI Tags36618-0.20-0.4695.23%
30CP481Keywords in Title Tag112-0.20-0.4780.79%
31CP999Search Result Path Matches42-0.20-0.4973.57%
32CKWD001Clean Keyword Density in the HTML Tag1794-0.19-0.4477.66%
33GD001Google Variation Density103-0.19-0.4670.57%
34CP165Keywords in H2 Tags393-0.19-0.4789.10%
35CP135Body Tag Size Kilobytes20979-0.19-0.4690.05%
36DD010DomDetailer Majestic Referring Subnets64,41615,695-0.19-0.2929.84%
37CP004Ahrefs Dofollow Backlinks1,187,8816,234-0.19-0.2727.66%
38CP160Leading Keywords in H1-H6 Tags132-0.19-0.4487.47%
39DD015DomDetailer Moz PA6944-0.19-0.4528.20%
40CP458Page Size Kilobytes297144-0.19-0.4886.10%
41DD006DomDetailer Majestic IPs216,63957,287-0.19-0.2830.52%
42CP465cKeywords in script Tags7,98439-0.19-0.4693.60%
43DD008DomDetailer Majestic Referring Domains1,419,744354,198-0.19-0.2830.93%
44CPXX888Number of HTML Tags3,347845-0.19-0.4686.65%
45CP113Search Result URL Matches42-0.19-0.4776.98%
46CP108Search Result Summary Length353163-0.18-0.4588.01%
47CP156Leading Keywords in H1, H2, and H3 Tags101-0.18-0.4388.01%
48CP128Keywords in Alt Attributes1567-0.18-0.4188.15%
49CP140Clean Text Kilobytes3710-0.18-0.3989.51%
50CP492bUnabridged Word Count6,7851,662-0.18-0.3990.05%
51CP492Word Count5,1071,283-0.18-0.4089.24%
52CP137Keywords in the Canonical URL91-0.18-0.4684.20%
53DD005DomDetailer Majestic CF6137-0.18-0.4429.29%
54CP381Keywords in Meta Descriptions342-0.18-0.4584.47%
55DD013DomDetailer Moz DA8445-0.18-0.4127.66%
56CP471Keywords in Span Tags3619-0.18-0.4092.10%
57CP134aSearch Terms in Body Tag15011-0.18-0.4289.51%
58DD002DomDetailer Facebook Shares9,819,568-944,932-0.17-0.3029.29%
59GD003Google Density Variations19943-0.17-0.4164.85%
60DD016DomDetailer Moz Rank85-0.17-0.4127.79%
61CP146Keywords in the First 100 Words1827-0.17-0.4279.70%
62CP124aKeywords in Absolute URLs1,56843-0.17-0.3989.51%
63CPXR24Number of P Tags19735-0.17-0.4183.38%
64CP468Number of Sentences24249-0.17-0.3884.74%
65CP045Ahrefs Has Text Backlinks11-0.17-0.4728.34%
66CP038Ahrefs Has NoFollow Backlinks11-0.17-0.4727.79%
67LSI001LSI Words in Title Tag144-0.17-0.4091.01%
68CPXR018Keywords in Nav Tags1,61020-0.17-0.4088.28%
69DD012DomDetailer Majestic TF6229-0.17-0.4028.47%
70ENT008Entities in Meta Description Tag73-0.17-0.4452.18%
71CP017Ahrefs Has Backlinks11-0.17-0.4727.79%
72CP019Ahrefs Has DoFollow Backlinks10-0.17-0.4527.38%
73CP425Number of HTTPS Links383136-0.17-0.3987.06%
74CP152Keywords in H1 Tags131-0.17-0.4080.38%
75ENT005Entities in H4 Tags92-0.17-0.4355.72%
76CP169Keywords in H3 Tags472-0.16-0.3988.83%
77CPXR003Number of Heading Tags5020-0.16-0.4085.69%
78CP435Number of Links391142-0.16-0.3985.56%
79CP470aSearch Terms in the HTML Tag1817-0.16-0.4084.88%
80ENT018Entities in Sentences52477-0.16-0.3596.19%
81CP476TF/IDF11-0.16-0.4681.61%
82CP431Number of Internal Links377126-0.16-0.3885.69%
83CP410Number of DoFollow Links381136-0.16-0.3885.01%
84DD014DomDetailer Moz Links77,772,68316,354,389-0.16-0.2629.70%
85CP005Ahrefs Domain Rating7836-0.16-0.3724.39%
86CP383Keywords in Meta OpenGraph Description401-0.16-0.4181.20%
87CP072Search Result Document Matches41-0.16-0.4270.98%
88CP484Leading Keywords in Title Tag10-0.16-0.4577.11%
89LSI006LSI Words in H2 Tags7811-0.16-0.4091.83%
90DD007DomDetailer Majestic Links78,144,5325,244,324-0.16-0.1929.97%
91CP109Search Result Summary Text Matches493-0.16-0.4477.25%
92CP426Number of Images8126-0.16-0.3585.42%
93CP385Keywords in Meta OpenGraph Content81-0.16-0.4279.43%
94ENT002Entities in H1 Tags62-0.16-0.3952.04%
95CP427Number of Images with Alt Text6917-0.15-0.3685.01%
96QS003Number of Questions274-0.15-0.3781.20%
97CP151Leading Keywords in H1 Tags10-0.15-0.4177.25%
98CPXR005Number of H2 Tags176-0.15-0.3884.60%
99CPX003Keywords in Main Tags4,54849-0.15-0.4389.10%
100CP159aSearch Terms in H1-H6 Tags101-0.15-0.3987.19%
101CP391Number of Absolute URLs372128-0.15-0.3882.43%
102ENT013Has Entities in H2 Tags11-0.15-0.4654.09%
103GD004Google Density Exact Matches452-0.15-0.4059.67%
104CP358Inline Javascript Kilobytes11232-0.15-0.3579.97%
105CP125Keywords making whole A Tags41-0.15-0.3783.79%
106CP374Keywords in the last 100 words1814-0.15-0.3979.84%
107CP472Keywords making whole Span Tags71-0.15-0.3984.33%
108ENT001Entities in HTML Tag1,507266-0.15-0.3296.46%
109QS004Number of Questions In Headings51-0.15-0.3437.74%
110CPJLDxSANumber Of JSON-LD Types248-0.15-0.3669.75%
111CPX013Keywords in Footer Tags8597-0.15-0.3684.20%
112DD011DomDetailer Majestic Referring .gov Links16,846,8993,527,803-0.15-0.2828.75%
113CPXR006Number of H3 Tags297-0.15-0.3485.01%
114CP164Leading Keywords in H2 Tags61-0.15-0.3985.29%
115CP050Ahrefs Internal Links34887-0.14-0.3329.02%
116LSI003LSI Words in Meta Description Tag287-0.14-0.3588.69%
117CP070Ahrefs Word Count4,4241,397-0.14-0.3314.03%
118CP477Keywords in Title Attributes667-0.14-0.3687.47%
119ENT014Has Entities in H3 Tags11-0.14-0.4352.45%
120CP048Ahrefs Image Backlinks10,403260-0.14-0.3024.93%
121CP376Keywords making whole LI Tags31-0.14-0.3784.06%
122CP473Keywords in Strong Tags462-0.14-0.3683.51%
123CP032Ahrefs Has Image Backlinks10-0.14-0.3923.16%
124CP177Keywords in H4-H6 Tags61-0.14-0.3782.29%
125CP130Keywords in Article Tags46916-0.14-0.4078.61%
126CP173Keywords in H4 Tags51-0.14-0.3881.88%
127CP467Keywords in Section Tags39016-0.14-0.3984.06%
128CP158Keywords making whole H1-H6 Tags40-0.14-0.3975.75%
129LSI007LSI Words in H3 Tags7211-0.14-0.3391.83%
130ENT010Title Tag Has Entities11-0.14-0.3947.14%
131CP483aSearch Terms in the Title Tag10-0.14-0.3978.47%
132CP104zSearch Result Has Publish Date11-0.14-0.426.13%
133QS012Headings Has Question10-0.14-0.4274.11%
134LSI005LSI Words in H1 Tags173-0.14-0.3186.65%
135CP413Number of External Links5716-0.13-0.2978.75%
136CP126aSearch Terms in A Tags332-0.13-0.3586.24%
137CP007Ahrefs External Links10616-0.13-0.3127.79%
138CP357Inline CSS Kilobytes8126-0.13-0.3578.75%
139CP353Head Size Kilobytes13039-0.13-0.3280.25%
140ENT012Has Entities in H1 Tags11-0.13-0.4048.23%
141CP168Leading Keywords in H3 Tags50-0.13-0.3680.38%
142CP052Ahrefs Linked Root Domains166-0.13-0.3328.61%
143QS006Number of Questions In H2 Tags20-0.13-0.3476.43%
144CP139Keywords in Class Attributes3,26010-0.13-0.3484.74%
145CP380Meta Description Length393126-0.13-0.3272.62%
146CP154Keywords making whole H1, H2, and H3 Tags20-0.13-0.3876.02%
147CP213Has FavIcon11-0.13-0.3969.89%
148CP377Load Time Milliseconds28,8912,343-0.13-0.2773.16%
149CP313Has Privacy Policy11-0.13-0.4075.34%
150CP355Keywords in ID Attributes161-0.13-0.3682.97%
151CP469aSearch Terms in Sentences211-0.13-0.3387.33%
152CP099Search Result Number of Dirs in Path32-0.13-0.3362.26%
153QS007Number of Questions In H3 Tags31-0.13-0.3577.93%
154CP077Search Result Domain Matches10-0.13-0.3749.59%
155CP409Number of DoFollow External Links4913-0.13-0.2675.61%
156CP114Search Result Uses HTTPS11-0.13-0.3766.89%
157DD001DomDetailer Facebook Comments31140-0.13-0.3324.52%
158CP481bWord Count in Meta Description Tag7020-0.13-0.3272.89%
159ENT015Has Entities in H4 Tags10-0.13-0.3847.55%
160CP451Number of US Phone Numbers1166-0.12-0.3376.57%
161CP056Ahrefs Pages61-0.12-0.2827.25%
162CP440Number of NoFollow Links466-0.12-0.3079.70%
163CP460Percentage of DoFollow Internal Links9479-0.12-0.3172.21%
164CPJLD011Has JSON-LD Answer10-0.12-0.3860.35%
165CPJLD217Has JSON-LD Question10-0.12-0.3860.49%
166CPXR007Number of H4 Tags224-0.12-0.3280.93%
167CP479iiTitle Has Sentiment Words10-0.12-0.3770.84%
168CPXR011Keywords in Button Tags3291-0.12-0.3679.16%
169CP479Title Has Sales Words10-0.12-0.3671.12%
170ENT011Meta Description Tag Has Entities11-0.12-0.3846.32%
171CP207Has Contact Page11-0.12-0.3861.04%
172CP356Keywords in I Tags242-0.12-0.3379.43%
173CP150aSearch Terms in H1 Tags10-0.12-0.3377.38%
174CP309Has OpenGraph Image11-0.12-0.3862.81%
175CPJLDxCBNumber Of Claimed Brands61-0.12-0.3460.49%
176CP204Has Canonical URL11-0.12-0.3673.16%
177CP418Number of Forms92-0.12-0.3172.34%
178CP432Number of JavaScript Includes3014-0.12-0.3069.89%
179CP176Leading Keywords in H4-H6 Tags40-0.12-0.3575.89%
180CP096Search Result Link Text Length7350-0.12-0.3460.76%
181CP104bSearch Result Publish Date2,004,926,7791,940,834,394-0.12-0.3540.87%
182CP133Keywords in B Tags612-0.12-0.3474.39%
183CP445Number of Social Pages133-0.12-0.2673.98%
184CP172Leading Keywords in H4 Tags30-0.12-0.3574.25%
185CP439Number of NoFollow Externa Links232-0.12-0.3181.20%
186CP225Has Meta Description11-0.12-0.3667.03%
187CP444Number of Social Accounts41-0.12-0.3173.84%
188CP491Keywords in Value Attributes511-0.12-0.3468.39%
189CP006Ahrefs Edu Backlinks47,565326-0.12-0.3117.17%
190CP208Has Copyright11-0.12-0.3770.57%
191CP022Ahrefs Has External Links11-0.12-0.3624.80%
192CP345Has Terms of Service10-0.12-0.3670.44%
193CP415Number of FaceBook Pages72-0.12-0.2871.93%
194CP424Number of HREF Lang Tags121-0.12-0.3376.29%
195CPXR015Keywords in Figure Tags2216-0.12-0.3474.80%
196LSI008LSI Words in H4 Tags445-0.12-0.3086.92%
197CP434Number of LinkedIn Pages20-0.12-0.3271.25%
198CP414Number of Facebook Accounts31-0.11-0.3170.71%
199CP034Ahrefs Has Internal Links11-0.11-0.3524.93%
200CP347Has US Phone Number10-0.11-0.3759.54%


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