Top SEO Factors




Top SEO Factors - 2021-10-31      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 - 2021-10-31 - View Factors By Date
OrdinalFactor IDName#1 MaxPage 1 AvgCorrelationCorrelation By PageKeywords
1ENT000aNumber of Entities Used5926-0.29-0.6366.05%
2CPZZZNumber of Factors Used209134-0.25-0.5191.05%
3CP470Keywords in the HTML Tag998155-0.24-0.5195.22%
4CPX010Keywords in Div Tags693113-0.23-0.5094.98%
5CP134Keywords in Body Tag873132-0.23-0.5294.73%
6CP061Ahrefs Referring Class C Addresses43238-0.23-0.3626.72%
7CP063Ahrefs Referring IP Addresses1,27550-0.23-0.3526.72%
8CP062Ahrefs Referring Domains1,17350-0.23-0.3527.08%
9CP067Ahrefs Text Backlinks1,191,1205,909-0.22-0.2926.59%
10CP161Keywords in H1-H6 Tags317-0.22-0.4891.91%
11CP475Term Frequency75-0.22-0.4893.50%
12CP064Ahrefs Referring Pages1,191,1235,920-0.22-0.2926.59%
13CP002Ahrefs Backlinks1,191,1245,920-0.22-0.2926.59%
14CP059Ahrefs Rank3915-0.22-0.4523.41%
15CP157Keywords in H1, H2, and H3 Tags276-0.22-0.4791.91%
16CP129Keywords in A Tags14225-0.22-0.4694.24%
17CP465Keywords in P Tags19630-0.22-0.4992.16%
18CP054Ahrefs NoFollow Backlinks12,557237-0.21-0.3326.59%
19ENT003Entities in H2 Tags305-0.21-0.5062.99%
20CP153Keywords in H1 and H2 Tags164-0.21-0.4790.44%
21CP071Search Result Display URL Matches31-0.21-0.5079.29%
22CP097Search Result Link Text Matches31-0.21-0.5079.29%
23ENT009Entities in Title Tag62-0.21-0.5061.76%
24CP127bKeywords in Unique A Tag HREFs25429-0.20-0.4476.72%
25CP127Keywords in A Tag HREFs32042-0.20-0.4491.05%
26LSI002LSI Words in Sentences3,220433-0.20-0.4494.85%
27CP375Keywords in LI Tags16917-0.20-0.4794.49%
28CP469Keywords in Sentences11221-0.20-0.4590.32%
29ENT004Entities in H3 Tags215-0.20-0.4863.36%
30CP481Keywords in Title Tag42-0.20-0.4780.76%
31CP999Search Result Path Matches41-0.20-0.4970.47%
32CP004Ahrefs Dofollow Backlinks1,187,8815,762-0.19-0.2726.10%
33GD001Google Variation Density103-0.19-0.4670.83%
34CKWD001Clean Keyword Density in the HTML Tag124-0.19-0.4476.84%
35DD010DomDetailer Majestic Referring Subnets64,41615,685-0.19-0.2827.08%
36CP135Body Tag Size Kilobytes20981-0.19-0.4690.32%
37DD006DomDetailer Majestic IPs216,63957,333-0.19-0.2827.70%
38CP165Keywords in H2 Tags153-0.19-0.4688.24%
39CP160Leading Keywords in H1-H6 Tags92-0.19-0.4487.13%
40CPXX888Number of HTML Tags3,347874-0.19-0.4787.25%
41CP458Page Size Kilobytes297145-0.19-0.4887.01%
42DD015DomDetailer Moz PA6944-0.19-0.4525.61%
43DD008DomDetailer Majestic Referring Domains1,419,744356,126-0.19-0.2828.06%
44CP465cKeywords in script Tags32631-0.19-0.4694.00%
45CP128Keywords in Alt Attributes637-0.18-0.4188.36%
46CP156Leading Keywords in H1, H2, and H3 Tags71-0.18-0.4387.75%
47CP108Search Result Summary Length336162-0.18-0.4488.85%
48CP140Clean Text Kilobytes3911-0.18-0.3989.95%
49DD013DomDetailer Moz DA8445-0.18-0.4225.00%
50CP492bUnabridged Word Count6,7851,677-0.18-0.3990.56%
51DD005DomDetailer Majestic CF6137-0.18-0.4426.72%
52CP492Word Count5,1071,298-0.18-0.3989.95%
53CP381Keywords in Meta Descriptions42-0.18-0.4584.80%
54CP471Keywords in Span Tags489-0.18-0.4091.67%
55CP134aSearch Terms in Body Tag15011-0.18-0.4289.46%
56CP113Search Result URL Matches41-0.18-0.4577.70%
57ENT018Entities in Sentences52478-0.18-0.3796.32%
58CP137Keywords in the Canonical URL41-0.17-0.4484.07%
59CP045Ahrefs Has Text Backlinks11-0.17-0.4826.35%
60DD016DomDetailer Moz Rank85-0.17-0.4225.00%
61DD002DomDetailer Facebook Shares9,819,568-951,389-0.17-0.2926.72%
62DD012DomDetailer Majestic TF6229-0.17-0.4025.86%
63CP038Ahrefs Has NoFollow Backlinks11-0.17-0.4725.98%
64CPXR24Number of P Tags19735-0.17-0.4182.97%
65CP146Keywords in the First 100 Words197-0.17-0.4276.84%
66CP019Ahrefs Has DoFollow Backlinks11-0.17-0.4725.37%
67CP017Ahrefs Has Backlinks11-0.17-0.4725.86%
68GD003Google Density Variations19942-0.17-0.4165.56%
69CP124aKeywords in Absolute URLs33340-0.17-0.3888.11%
70CP468Number of Sentences24249-0.17-0.3784.31%
71ENT008Entities in Meta Description Tag73-0.17-0.4557.48%
72CP425Number of HTTPS Links581142-0.17-0.3987.25%
73LSI001LSI Words in Title Tag144-0.17-0.4090.32%
74CP435Number of Links590150-0.17-0.3985.66%
75CP152Keywords in H1 Tags31-0.17-0.4178.80%
76CPXR018Keywords in Nav Tags18018-0.17-0.3987.75%
77ENT005Entities in H4 Tags92-0.17-0.4357.97%
78CP431Number of Internal Links583134-0.17-0.3886.03%
79CP410Number of DoFollow Links566144-0.17-0.3885.29%
80CP470aSearch Terms in the HTML Tag1817-0.17-0.4085.78%
81CP005Ahrefs Domain Rating7837-0.16-0.3823.16%
82CP476TF/IDF11-0.16-0.4680.88%
83CPXR003Number of Heading Tags5020-0.16-0.4084.44%
84CP169Keywords in H3 Tags122-0.16-0.3988.73%
85ENT001Entities in HTML Tag3,882269-0.16-0.3596.45%
86ENT002Entities in H1 Tags62-0.16-0.4055.27%
87DD014DomDetailer Moz Links77,772,68316,483,192-0.16-0.2627.08%
88CP072Search Result Document Matches41-0.16-0.4267.65%
89CP383Keywords in Meta OpenGraph Description51-0.16-0.4180.76%
90DD007DomDetailer Majestic Links78,144,5325,274,731-0.16-0.1827.08%
91CP484Leading Keywords in Title Tag10-0.16-0.4578.06%
92CP426Number of Images8127-0.16-0.3685.42%
93CP109Search Result Summary Text Matches63-0.16-0.4476.23%
94LSI006LSI Words in H2 Tags7811-0.16-0.3990.93%
95CP427Number of Images with Alt Text6918-0.16-0.3685.17%
96CP159aSearch Terms in H1-H6 Tags101-0.16-0.4086.89%
97CP151Leading Keywords in H1 Tags10-0.16-0.4277.57%
98CP385Keywords in Meta OpenGraph Content31-0.15-0.4279.17%
99QS003Number of Questions274-0.15-0.3780.02%
100CP391Number of Absolute URLs372128-0.15-0.3782.84%
101CPX003Keywords in Main Tags28544-0.15-0.4387.13%
102CPXR005Number of H2 Tags176-0.15-0.3783.33%
103GD004Google Density Exact Matches452-0.15-0.4061.40%
104QS004Number of Questions In Headings51-0.15-0.3535.54%
105ENT013Has Entities in H2 Tags11-0.15-0.4557.97%
106CP050Ahrefs Internal Links35289-0.15-0.3427.33%
107CP070Ahrefs Word Count4,4241,406-0.15-0.3513.60%
108CP358Inline Javascript Kilobytes11232-0.15-0.3580.76%
109CP048Ahrefs Image Backlinks10,403266-0.15-0.3123.53%
110CP472Keywords making whole Span Tags71-0.15-0.3984.56%
111CP125Keywords making whole A Tags41-0.15-0.3782.60%
112CP374Keywords in the last 100 words124-0.15-0.3876.84%
113CP032Ahrefs Has Image Backlinks10-0.15-0.4022.18%
114CPJLDxSANumber Of JSON-LD Types318-0.15-0.3672.06%
115CPX013Keywords in Footer Tags1186-0.15-0.3682.35%
116DD011DomDetailer Majestic Referring .gov Links16,846,8993,570,817-0.15-0.2826.10%
117CP477Keywords in Title Attributes567-0.14-0.3786.89%
118CP164Leading Keywords in H2 Tags61-0.14-0.3984.68%
119CPXR006Number of H3 Tags297-0.14-0.3484.07%
120CP483aSearch Terms in the Title Tag10-0.14-0.4077.57%
121ENT010Title Tag Has Entities11-0.14-0.4051.47%
122LSI003LSI Words in Meta Description Tag287-0.14-0.3589.46%
123CP376Keywords making whole LI Tags31-0.14-0.3783.95%
124ENT014Has Entities in H3 Tags11-0.14-0.4356.37%
125CP467Keywords in Section Tags9415-0.14-0.3983.82%
126CP177Keywords in H4-H6 Tags61-0.14-0.3781.25%
127CP126aSearch Terms in A Tags332-0.14-0.3686.15%
128CP007Ahrefs External Links10617-0.14-0.3225.98%
129CP158Keywords making whole H1-H6 Tags40-0.14-0.3976.10%
130CP173Keywords in H4 Tags51-0.14-0.3780.88%
131CP413Number of External Links5716-0.14-0.3179.78%
132CP473Keywords in Strong Tags192-0.14-0.3681.37%
133ENT012Has Entities in H1 Tags11-0.14-0.4150.98%
134CP130Keywords in Article Tags14815-0.14-0.4076.23%
135QS012Headings Has Question10-0.14-0.4273.53%
136LSI007LSI Words in H3 Tags7211-0.14-0.3290.93%
137CP052Ahrefs Linked Root Domains166-0.14-0.3426.84%
138CP104zSearch Result Has Publish Date11-0.13-0.414.04%
139CP380Meta Description Length393128-0.13-0.3372.67%
140LSI005LSI Words in H1 Tags173-0.13-0.3186.15%
141CP357Inline CSS Kilobytes7426-0.13-0.3577.57%
142CP353Head Size Kilobytes13040-0.13-0.3178.43%
143CP154Keywords making whole H1, H2, and H3 Tags10-0.13-0.3876.23%
144CP056Ahrefs Pages61-0.13-0.2925.25%
145CP481bWord Count in Meta Description Tag7020-0.13-0.3373.16%
146CP409Number of DoFollow External Links4913-0.13-0.2776.72%
147CP168Leading Keywords in H3 Tags20-0.13-0.3580.39%
148QS006Number of Questions In H2 Tags20-0.13-0.3475.86%
149DD001DomDetailer Facebook Comments31138-0.13-0.3421.69%
150ENT015Has Entities in H4 Tags10-0.13-0.3950.12%
151CP377Load Time Milliseconds28,8912,378-0.13-0.2672.67%
152CP213Has FavIcon11-0.13-0.3969.61%
153CP469aSearch Terms in Sentences211-0.13-0.3387.13%
154QS007Number of Questions In H3 Tags31-0.13-0.3575.49%
155CP099Search Result Number of Dirs in Path32-0.13-0.3363.11%
156CP077Search Result Domain Matches10-0.13-0.3747.55%
157CP139Keywords in Class Attributes1476-0.13-0.3484.56%
158CP114Search Result Uses HTTPS11-0.13-0.3766.91%
159CP355Keywords in ID Attributes161-0.13-0.3582.84%
160CP451Number of US Phone Numbers1166-0.13-0.3276.84%
161CP313Has Privacy Policy11-0.13-0.3875.74%
162CP440Number of NoFollow Links466-0.13-0.3080.15%
163CP150aSearch Terms in H1 Tags10-0.12-0.3476.96%
164ENT011Meta Description Tag Has Entities11-0.12-0.3950.74%
165CPJLD011Has JSON-LD Answer10-0.12-0.3857.84%
166CPJLD217Has JSON-LD Question10-0.12-0.3857.97%
167CP022Ahrefs Has External Links11-0.12-0.3822.67%
168CPXR007Number of H4 Tags224-0.12-0.3279.41%
169CP034Ahrefs Has Internal Links11-0.12-0.3722.92%
170CP460Percentage of DoFollow Internal Links9480-0.12-0.3170.47%
171CPXR011Keywords in Button Tags141-0.12-0.3579.04%
172CP444Number of Social Accounts41-0.12-0.3274.63%
173CP309Has OpenGraph Image11-0.12-0.3862.75%
174CP049Ahrefs Images6920-0.12-0.2913.48%
175CP006Ahrefs Edu Backlinks47,565303-0.12-0.3016.42%
176CPJLDxCBNumber Of Claimed Brands61-0.12-0.3563.60%
177CP415Number of FaceBook Pages82-0.12-0.2972.67%
178CP036Ahrefs Has Linked Root Domains11-0.12-0.3723.41%
179CP445Number of Social Pages133-0.12-0.2774.88%
180CP432Number of JavaScript Includes3015-0.12-0.3068.63%
181CP356Keywords in I Tags122-0.12-0.3378.06%
182CP176Leading Keywords in H4-H6 Tags40-0.12-0.3575.25%
183CP225Has Meta Description11-0.12-0.3767.52%
184CP207Has Contact Page11-0.12-0.3760.91%
185CP418Number of Forms102-0.12-0.3172.92%
186CP060Ahrefs Redirects4639-0.12-0.2921.94%
187CP204Has Canonical URL11-0.12-0.3672.43%
188CP172Leading Keywords in H4 Tags30-0.12-0.3573.53%
189CP479iiTitle Has Sentiment Words10-0.12-0.3670.83%
190CP439Number of NoFollow Externa Links232-0.12-0.3181.25%
191CPJLD007Has JSON-LD AggregateRating10-0.12-0.3859.44%
192CP479Title Has Sales Words10-0.12-0.3571.32%
193CP104bSearch Result Publish Date2,004,926,7791,952,017,505-0.12-0.3437.50%
194CP454Number of YouTube Accounts10-0.12-0.3369.12%
195CP430Number of Instagram Pages141-0.12-0.2776.59%
196CP491Keywords in Value Attributes511-0.12-0.3369.61%
197CP096Search Result Link Text Length6850-0.12-0.3359.31%
198CP021Ahrefs Has EDU Backlinks10-0.12-0.3415.69%
199CP347Has US Phone Number10-0.12-0.3760.42%
200CP424Number of HREF Lang Tags121-0.12-0.3376.10%


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