Top SEO Factors




Top SEO Factors - 2021-11-01      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 - 2021-11-01 - View Factors By Date
OrdinalFactor IDName#1 MaxPage 1 AvgCorrelationCorrelation By PageKeywords
1ENT000aNumber of Entities Used5925-0.29-0.6368.45%
2CPZZZNumber of Factors Used209135-0.25-0.5190.83%
3CP470Keywords in the HTML Tag998153-0.24-0.5195.24%
4CPX010Keywords in Div Tags693112-0.23-0.5095.00%
5CP134Keywords in Body Tag873131-0.23-0.5294.88%
6CP061Ahrefs Referring Class C Addresses43238-0.23-0.3525.48%
7CP063Ahrefs Referring IP Addresses1,27550-0.22-0.3425.48%
8CP062Ahrefs Referring Domains1,17350-0.22-0.3425.83%
9CP161Keywords in H1-H6 Tags317-0.22-0.4891.31%
10CP475Term Frequency75-0.22-0.4893.45%
11CP067Ahrefs Text Backlinks1,191,1205,765-0.22-0.2925.36%
12CP002Ahrefs Backlinks1,191,1245,776-0.22-0.2925.36%
13CP064Ahrefs Referring Pages1,191,1235,776-0.22-0.2925.36%
14CP059Ahrefs Rank3915-0.22-0.4622.38%
15CP129Keywords in A Tags14225-0.22-0.4694.29%
16CP157Keywords in H1, H2, and H3 Tags276-0.22-0.4791.31%
17CP465Keywords in P Tags19630-0.22-0.4991.67%
18ENT003Entities in H2 Tags305-0.21-0.5064.76%
19CP054Ahrefs NoFollow Backlinks12,557237-0.21-0.3225.36%
20CP153Keywords in H1 and H2 Tags164-0.21-0.4790.00%
21CP097Search Result Link Text Matches31-0.21-0.5079.29%
22CP071Search Result Display URL Matches31-0.21-0.5079.29%
23LSI002LSI Words in Sentences3,220426-0.21-0.4595.71%
24ENT009Entities in Title Tag62-0.21-0.5063.81%
25CP127bKeywords in Unique A Tag HREFs25428-0.20-0.4477.98%
26CP375Keywords in LI Tags16917-0.20-0.4694.64%
27CP469Keywords in Sentences11221-0.20-0.4589.64%
28CP127Keywords in A Tag HREFs32042-0.20-0.4491.07%
29ENT004Entities in H3 Tags215-0.20-0.4865.71%
30CP999Search Result Path Matches41-0.20-0.4968.57%
31CP481Keywords in Title Tag42-0.20-0.4780.71%
32GD001Google Variation Density102-0.19-0.4671.19%
33DD010DomDetailer Majestic Referring Subnets64,41615,670-0.19-0.2826.90%
34CKWD001Clean Keyword Density in the HTML Tag124-0.19-0.4477.38%
35CP004Ahrefs Dofollow Backlinks1,187,8815,617-0.19-0.2724.88%
36CP135Body Tag Size Kilobytes20982-0.19-0.4690.83%
37DD006DomDetailer Majestic IPs216,63957,487-0.19-0.2827.50%
38CPXX888Number of HTML Tags3,347886-0.19-0.4787.74%
39CP165Keywords in H2 Tags153-0.19-0.4687.62%
40CP160Leading Keywords in H1-H6 Tags92-0.19-0.4487.62%
41DD015DomDetailer Moz PA6944-0.19-0.4625.24%
42DD008DomDetailer Majestic Referring Domains1,419,744358,551-0.19-0.2827.86%
43CP458Page Size Kilobytes297146-0.19-0.4887.26%
44CP465cKeywords in script Tags32631-0.19-0.4693.81%
45ENT018Entities in Sentences52479-0.18-0.3997.26%
46CP156Leading Keywords in H1, H2, and H3 Tags71-0.18-0.4388.21%
47CP128Keywords in Alt Attributes637-0.18-0.4188.21%
48DD005DomDetailer Majestic CF6137-0.18-0.4426.55%
49DD013DomDetailer Moz DA8445-0.18-0.4224.76%
50CP492bUnabridged Word Count6,7851,676-0.18-0.3990.60%
51CP140Clean Text Kilobytes3911-0.18-0.3990.12%
52CP108Search Result Summary Length334162-0.18-0.4388.81%
53CP134aSearch Terms in Body Tag15011-0.18-0.4389.76%
54CP492Word Count5,1071,300-0.18-0.4090.12%
55CP381Keywords in Meta Descriptions42-0.18-0.4585.24%
56CP471Keywords in Span Tags489-0.18-0.4091.67%
57CP113Search Result URL Matches41-0.17-0.4477.38%
58DD012DomDetailer Majestic TF6229-0.17-0.4125.83%
59CP146Keywords in the First 100 Words197-0.17-0.4276.19%
60DD002DomDetailer Facebook Shares9,819,568-717,791-0.17-0.2926.55%
61DD016DomDetailer Moz Rank85-0.17-0.4224.64%
62CP137Keywords in the Canonical URL41-0.17-0.4483.81%
63CPXR24Number of P Tags19735-0.17-0.4282.74%
64CP045Ahrefs Has Text Backlinks11-0.17-0.4825.12%
65GD003Google Density Variations19941-0.17-0.4165.95%
66ENT001Entities in HTML Tag3,882269-0.17-0.3697.38%
67LSI001LSI Words in Title Tag144-0.17-0.4090.83%
68CP038Ahrefs Has NoFollow Backlinks11-0.17-0.4724.76%
69CP017Ahrefs Has Backlinks11-0.17-0.4724.64%
70CP425Number of HTTPS Links581145-0.17-0.3987.62%
71CP019Ahrefs Has DoFollow Backlinks11-0.17-0.4624.17%
72CP468Number of Sentences24249-0.17-0.3784.40%
73ENT008Entities in Meta Description Tag82-0.17-0.4560.00%
74CP470aSearch Terms in the HTML Tag1817-0.17-0.4185.83%
75CP124aKeywords in Absolute URLs33340-0.17-0.3887.14%
76CP152Keywords in H1 Tags31-0.17-0.4178.33%
77CP435Number of Links590153-0.17-0.3986.07%
78CP431Number of Internal Links583137-0.17-0.3886.19%
79CPXR018Keywords in Nav Tags18018-0.17-0.4087.74%
80ENT005Entities in H4 Tags92-0.17-0.4458.57%
81CP410Number of DoFollow Links566147-0.17-0.3885.71%
82CP005Ahrefs Domain Rating7837-0.16-0.3822.14%
83CPXR003Number of Heading Tags5020-0.16-0.4083.93%
84CP476TF/IDF11-0.16-0.4680.48%
85DD014DomDetailer Moz Links77,772,68316,268,195-0.16-0.2527.26%
86ENT002Entities in H1 Tags62-0.16-0.4056.79%
87CP169Keywords in H3 Tags122-0.16-0.3988.69%
88CP484Leading Keywords in Title Tag10-0.16-0.4578.10%
89CP072Search Result Document Matches41-0.16-0.4265.48%
90DD007DomDetailer Majestic Links78,144,5324,854,873-0.16-0.1827.14%
91CP383Keywords in Meta OpenGraph Description51-0.16-0.4080.36%
92CP426Number of Images8127-0.16-0.3685.48%
93LSI006LSI Words in H2 Tags7811-0.16-0.3990.95%
94CP109Search Result Summary Text Matches63-0.16-0.4475.00%
95CP159aSearch Terms in H1-H6 Tags101-0.16-0.4086.55%
96CP385Keywords in Meta OpenGraph Content31-0.16-0.4278.21%
97CP151Leading Keywords in H1 Tags10-0.16-0.4278.33%
98CP427Number of Images with Alt Text6918-0.16-0.3685.48%
99ENT013Has Entities in H2 Tags11-0.15-0.4659.52%
100CP070Ahrefs Word Count4,4241,424-0.15-0.3512.86%
101QS003Number of Questions274-0.15-0.3779.29%
102CPX003Keywords in Main Tags28543-0.15-0.4386.43%
103CP391Number of Absolute URLs372129-0.15-0.3782.62%
104GD004Google Density Exact Matches422-0.15-0.4061.19%
105QS004Number of Questions In Headings51-0.15-0.3533.93%
106CPXR005Number of H2 Tags176-0.15-0.3882.50%
107CP050Ahrefs Internal Links35290-0.15-0.3426.07%
108CP472Keywords making whole Span Tags71-0.15-0.3985.24%
109CP048Ahrefs Image Backlinks10,403241-0.15-0.3022.38%
110CP358Inline Javascript Kilobytes11232-0.15-0.3581.19%
111CP125Keywords making whole A Tags41-0.15-0.3783.10%
112CP374Keywords in the last 100 words124-0.15-0.3876.55%
113CP032Ahrefs Has Image Backlinks10-0.15-0.4021.07%
114CPJLDxSANumber Of JSON-LD Types318-0.15-0.3673.33%
115DD011DomDetailer Majestic Referring .gov Links17,213,1423,639,278-0.15-0.2825.83%
116CPX013Keywords in Footer Tags1186-0.15-0.3682.14%
117CP164Leading Keywords in H2 Tags61-0.14-0.3984.76%
118CP477Keywords in Title Attributes567-0.14-0.3787.26%
119ENT010Title Tag Has Entities11-0.14-0.4153.33%
120CP483aSearch Terms in the Title Tag10-0.14-0.4076.90%
121CPXR006Number of H3 Tags297-0.14-0.3484.05%
122CP376Keywords making whole LI Tags31-0.14-0.3783.81%
123CP126aSearch Terms in A Tags302-0.14-0.3786.55%
124LSI003LSI Words in Meta Description Tag287-0.14-0.3590.60%
125CP158Keywords making whole H1-H6 Tags40-0.14-0.4076.79%
126ENT014Has Entities in H3 Tags11-0.14-0.4357.98%
127CP177Keywords in H4-H6 Tags61-0.14-0.3780.00%
128CP473Keywords in Strong Tags172-0.14-0.3679.17%
129CP130Keywords in Article Tags14816-0.14-0.4074.17%
130CP413Number of External Links5716-0.14-0.3179.64%
131CP007Ahrefs External Links10617-0.14-0.3124.76%
132CP467Keywords in Section Tags9415-0.14-0.3983.21%
133CP173Keywords in H4 Tags51-0.14-0.3880.00%
134LSI007LSI Words in H3 Tags7211-0.14-0.3291.31%
135ENT012Has Entities in H1 Tags11-0.14-0.4052.26%
136QS012Headings Has Question10-0.14-0.4272.26%
137LSI005LSI Words in H1 Tags173-0.14-0.3286.43%
138CP104zSearch Result Has Publish Date11-0.14-0.423.57%
139CP052Ahrefs Linked Root Domains166-0.14-0.3425.60%
140CP154Keywords making whole H1, H2, and H3 Tags10-0.13-0.3876.79%
141CP380Meta Description Length393129-0.13-0.3373.45%
142CP056Ahrefs Pages62-0.13-0.2924.05%
143CP213Has FavIcon11-0.13-0.3969.52%
144CP353Head Size Kilobytes13040-0.13-0.3178.21%
145QS006Number of Questions In H2 Tags20-0.13-0.3474.76%
146CP409Number of DoFollow External Links4913-0.13-0.2877.02%
147CP469aSearch Terms in Sentences211-0.13-0.3386.43%
148CP357Inline CSS Kilobytes7426-0.13-0.3477.98%
149CP168Leading Keywords in H3 Tags20-0.13-0.3680.36%
150CP481bWord Count in Meta Description Tag7020-0.13-0.3373.93%
151DD001DomDetailer Facebook Comments31136-0.13-0.3421.55%
152ENT015Has Entities in H4 Tags10-0.13-0.3950.48%
153CP377Load Time Milliseconds28,8912,374-0.13-0.2772.86%
154CP114Search Result Uses HTTPS11-0.13-0.3767.86%
155CP099Search Result Number of Dirs in Path32-0.13-0.3362.98%
156CP077Search Result Domain Matches10-0.13-0.3746.19%
157CP139Keywords in Class Attributes925-0.13-0.3384.76%
158CP150aSearch Terms in H1 Tags10-0.13-0.3475.60%
159QS007Number of Questions In H3 Tags31-0.13-0.3474.64%
160CP440Number of NoFollow Links346-0.13-0.3080.60%
161ENT011Meta Description Tag Has Entities11-0.13-0.3953.10%
162CP355Keywords in ID Attributes161-0.13-0.3483.10%
163CP313Has Privacy Policy11-0.12-0.3875.36%
164CP451Number of US Phone Numbers1166-0.12-0.3376.90%
165CPJLD011Has JSON-LD Answer10-0.12-0.3856.07%
166CPJLD217Has JSON-LD Question10-0.12-0.3856.19%
167CP049Ahrefs Images6920-0.12-0.3012.74%
168CP444Number of Social Accounts41-0.12-0.3275.12%
169CP460Percentage of DoFollow Internal Links9480-0.12-0.3170.36%
170CP034Ahrefs Has Internal Links11-0.12-0.3721.90%
171CP022Ahrefs Has External Links11-0.12-0.3821.67%
172CP415Number of FaceBook Pages82-0.12-0.2972.86%
173CP432Number of JavaScript Includes3015-0.12-0.3168.81%
174CP006Ahrefs Edu Backlinks47,565314-0.12-0.3015.48%
175CP309Has OpenGraph Image11-0.12-0.3862.26%
176CP445Number of Social Pages133-0.12-0.2774.76%
177CP036Ahrefs Has Linked Root Domains11-0.12-0.3722.38%
178CP176Leading Keywords in H4-H6 Tags40-0.12-0.3574.29%
179CPJLDxCBNumber Of Claimed Brands61-0.12-0.3564.64%
180CPXR007Number of H4 Tags224-0.12-0.3178.57%
181CP356Keywords in I Tags122-0.12-0.3378.33%
182CP454Number of YouTube Accounts10-0.12-0.3469.40%
183CPXR011Keywords in Button Tags141-0.12-0.3579.64%
184CP418Number of Forms102-0.12-0.3172.62%
185CP207Has Contact Page11-0.12-0.3760.83%
186CP225Has Meta Description11-0.12-0.3667.38%
187CP060Ahrefs Redirects4639-0.12-0.2920.95%
188CP424Number of HREF Lang Tags121-0.12-0.3475.71%
189CP204Has Canonical URL11-0.12-0.3672.62%
190CP439Number of NoFollow Externa Links232-0.12-0.3180.95%
191CP430Number of Instagram Pages141-0.12-0.2876.79%
192CP172Leading Keywords in H4 Tags30-0.12-0.3572.62%
193CP491Keywords in Value Attributes341-0.12-0.3369.64%
194CP057Ahrefs Page Size61,32429,566-0.12-0.2712.38%
195CP104bSearch Result Publish Date2,004,926,7791,957,011,083-0.12-0.3436.43%
196CP021Ahrefs Has EDU Backlinks10-0.12-0.3414.76%
197CP428Number of Images without Alt Text389-0.12-0.2877.02%
198CP479iiTitle Has Sentiment Words10-0.12-0.3571.19%
199CP096Search Result Link Text Length6750-0.12-0.3358.57%
200CPJLD007Has JSON-LD AggregateRating10-0.11-0.3759.40%


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