Top SEO Factors




Top SEO Factors - 2021-12-25      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 - 2021-12-25 - View Factors By Date
OrdinalFactor IDName#1 MaxPage 1 AvgCorrelationCorrelation By PageKeywords
1ENT000aNumber of Entities Used6829-0.30-0.6269.13%
2CPZZZ50Number of Top 50 Shared Factors Used4228-0.28-0.4720.12%
3CPZZZ100Number of Top 100 Shared Factors Used7656-0.26-0.4620.23%
4CP470Keywords in the HTML Tag1,038197-0.24-0.5192.02%
5CPZZZNumber of Factors Used217138-0.24-0.4991.21%
6CPZZZ200Number of Top 200 Shared Factors Used13498-0.24-0.4619.08%
7CP054Ahrefs NoFollow Backlinks5,409230-0.23-0.2814.22%
8CPX010Keywords in Div Tags713134-0.23-0.4990.87%
9CP134Keywords in Body Tag980174-0.23-0.5193.18%
10CP063Ahrefs Referring IP Addresses45853-0.23-0.3014.10%
11CP061Ahrefs Referring Class C Addresses31041-0.23-0.3114.10%
12CP062Ahrefs Referring Domains48954-0.23-0.3013.99%
13LSI002LSI Words in Sentences3,406619-0.22-0.4797.11%
14CP059Ahrefs Rank4115-0.22-0.4412.49%
15CP475Term Frequency75-0.22-0.4792.14%
16ENT003Entities in H2 Tags417-0.22-0.5168.21%
17CP067Ahrefs Text Backlinks71,9421,989-0.22-0.2314.45%
18CP127bKeywords in Unique A Tag HREFs18138-0.22-0.4588.67%
19CP002Ahrefs Backlinks71,9562,157-0.22-0.2314.45%
20CP064Ahrefs Referring Pages71,9562,157-0.22-0.2314.45%
21CP127Keywords in A Tag HREFs26654-0.21-0.4591.33%
22CP129Keywords in A Tags13629-0.21-0.4492.25%
23CP161Keywords in H1-H6 Tags329-0.21-0.4790.17%
24CP465Keywords in P Tags17838-0.21-0.4690.52%
25CP157Keywords in H1, H2, and H3 Tags307-0.21-0.4690.98%
26CP469Keywords in Sentences12528-0.21-0.4489.60%
27CP153Keywords in H1 and H2 Tags185-0.20-0.4789.25%
28ENT009Entities in Title Tag63-0.20-0.4965.09%
29CP375Keywords in LI Tags7320-0.20-0.4590.87%
30ENT004Entities in H3 Tags366-0.20-0.4768.21%
31CP134aSearch Terms in Body Tag21213-0.20-0.4391.68%
32CKWD001Clean Keyword Density in the HTML Tag114-0.20-0.4781.62%
33CP999Search Result Path Matches52-0.20-0.4877.34%
34CP113Search Result URL Matches52-0.20-0.4879.88%
35GD001Google Variation Density103-0.19-0.4679.77%
36CP135Body Tag Size Kilobytes25286-0.19-0.4586.01%
37CP470aSearch Terms in the HTML Tag2599-0.19-0.4587.40%
38CP140Clean Text Kilobytes3111-0.19-0.4184.16%
39CP004Ahrefs Dofollow Backlinks69,3661,811-0.19-0.2414.34%
40CP160Leading Keywords in H1-H6 Tags102-0.19-0.4586.24%
41CP458Page Size Kilobytes336150-0.19-0.4784.86%
42CP488Keywords in pages top 10 most used phrases52-0.19-0.4985.20%
43CP108Search Result Summary Length349161-0.19-0.4383.82%
44CP492bUnabridged Word Count5,2111,814-0.19-0.4187.75%
45CP156Leading Keywords in H1, H2, and H3 Tags62-0.19-0.4686.01%
46CP487Keywords in pages top 5 most used phrases31-0.19-0.4985.32%
47CPXX888Number of HTML Tags3,267871-0.19-0.4481.16%
48CP165Keywords in H2 Tags163-0.19-0.4492.72%
49DD010DomDetailer Majestic Referring Subnets44,07513,537-0.19-0.2428.55%
50CP124aKeywords in Absolute URLs44255-0.18-0.4389.48%
51DD006DomDetailer Majestic IPs191,02744,798-0.18-0.2328.55%
52CP492Word Count4,2611,415-0.18-0.4085.90%
53DD008DomDetailer Majestic Referring Domains1,572,195247,893-0.18-0.2328.67%
54DD015DomDetailer Moz PA7043-0.18-0.4326.71%
55CP465cKeywords in script Tags45341-0.18-0.4291.68%
56CP137Keywords in the Canonical URL52-0.18-0.4782.54%
57DD005DomDetailer Majestic CF6638-0.18-0.4428.09%
58CP097Search Result Link Text Matches31-0.18-0.4574.57%
59CP071Search Result Display URL Matches31-0.18-0.4574.57%
60LSI001LSI Words in Title Tag146-0.18-0.4390.64%
61ENT018Entities in Sentences624103-0.18-0.3697.34%
62CP072Search Result Document Matches52-0.18-0.4569.25%
63LSI006LSI Words in H2 Tags9017-0.18-0.4293.76%
64CP468Number of Sentences20257-0.17-0.3983.82%
65ENT002Entities in H1 Tags62-0.17-0.4257.92%
66CP486Keywords in pages top 3 most used phrases21-0.17-0.4781.73%
67CP471Keywords in Span Tags4010-0.17-0.3888.09%
68CP159aSearch Terms in H1-H6 Tags121-0.17-0.4188.67%
69CP109Search Result Summary Text Matches63-0.17-0.4780.12%
70CP425Number of HTTPS Links516144-0.17-0.3879.54%
71CP146Keywords in the First 100 Words207-0.17-0.4378.61%
72CP381Keywords in Meta Descriptions62-0.17-0.4480.35%
73CP128Keywords in Alt Attributes568-0.17-0.3986.71%
74DD013DomDetailer Moz DA8544-0.17-0.4026.71%
75CP431Number of Internal Links502130-0.17-0.3879.08%
76CP410Number of DoFollow Links505143-0.17-0.3877.57%
77CP481Keywords in Title Tag32-0.17-0.4274.34%
78CP484Leading Keywords in Title Tag10-0.17-0.4673.99%
79CP038Ahrefs Has NoFollow Backlinks11-0.17-0.4613.99%
80ENT008Entities in Meta Description Tag113-0.17-0.4459.42%
81CP435Number of Links517148-0.17-0.3878.27%
82LSI003LSI Words in Meta Description Tag2810-0.17-0.4187.17%
83GD004Google Density Exact Matches282-0.17-0.3968.67%
84DD012DomDetailer Majestic TF6029-0.16-0.3927.40%
85CPXR003Number of Heading Tags7021-0.16-0.4086.13%
86CPXR24Number of P Tags12938-0.16-0.3885.43%
87DD007DomDetailer Majestic Links173,742,59819,010,661-0.16-0.2028.90%
88GD003Google Density Variations19943-0.16-0.3974.80%
89CP169Keywords in H3 Tags143-0.16-0.3988.21%
90QS004Number of Questions In Headings71-0.16-0.3931.79%
91CPX003Keywords in Main Tags50562-0.16-0.4484.05%
92CP164Leading Keywords in H2 Tags31-0.16-0.4284.51%
93ENT001Entities in HTML Tag3,831330-0.16-0.3493.41%
94CPXR018Keywords in Nav Tags23021-0.16-0.3885.90%
95LSI007LSI Words in H3 Tags17516-0.16-0.3890.75%
96CP151Leading Keywords in H1 Tags10-0.16-0.4275.14%
97DD016DomDetailer Moz Rank85-0.15-0.3926.94%
98CP070Ahrefs Word Count3,2191,179-0.15-0.3711.10%
99QS003Number of Questions155-0.15-0.3778.15%
100CPXR005Number of H2 Tags176-0.15-0.3885.09%
101DD014DomDetailer Moz Links91,215,13512,151,625-0.15-0.2327.98%
102CP476TF/IDF11-0.15-0.4378.03%
103CP005Ahrefs Domain Rating7535-0.15-0.3711.33%
104CP483aSearch Terms in the Title Tag10-0.15-0.4181.16%
105DD002DomDetailer Facebook Shares9,481,683-2,460,072-0.15-0.2428.90%
106CP358Inline Javascript Kilobytes11232-0.15-0.3583.82%
107CP019Ahrefs Has DoFollow Backlinks11-0.15-0.4213.76%
108CP426Number of Images14028-0.15-0.3778.50%
109CP152Keywords in H1 Tags31-0.15-0.3675.49%
110CP469aSearch Terms in Sentences432-0.15-0.3887.98%
111CP125Keywords making whole A Tags51-0.15-0.3783.93%
112CP374Keywords in the last 100 words114-0.15-0.3677.80%
113CP045Ahrefs Has Text Backlinks11-0.15-0.4113.87%
114CP383Keywords in Meta OpenGraph Description122-0.15-0.3977.23%
115CP017Ahrefs Has Backlinks11-0.15-0.4113.64%
116ENT005Entities in H4 Tags132-0.14-0.4062.66%
117CP150aSearch Terms in H1 Tags10-0.14-0.3881.50%
118LSI005LSI Words in H1 Tags135-0.14-0.3386.82%
119CP376Keywords making whole LI Tags51-0.14-0.3879.54%
120ENT013Has Entities in H2 Tags11-0.14-0.4360.81%
121CP391Number of Absolute URLs489148-0.14-0.3582.54%
122CP427Number of Images with Alt Text11718-0.14-0.3681.39%
123CPX013Keywords in Footer Tags536-0.14-0.3679.19%
124CPXR006Number of H3 Tags558-0.14-0.3583.47%
125ENT014Has Entities in H3 Tags11-0.14-0.4356.53%
126CP472Keywords making whole Span Tags51-0.14-0.3581.39%
127CPJLDxSANumber Of JSON-LD Types11210-0.14-0.3879.08%
128CP413Number of External Links8119-0.14-0.3277.11%
129CP477Keywords in Title Attributes868-0.14-0.3683.58%
130CP168Leading Keywords in H3 Tags31-0.14-0.3779.54%
131QS012Headings Has Question10-0.14-0.4070.52%
132CP050Ahrefs Internal Links73788-0.14-0.2613.99%
133PAGE009Number of Prices14734-0.14-0.3416.99%
134CP385Keywords in Meta OpenGraph Content31-0.14-0.3974.80%
135ENT010Title Tag Has Entities11-0.14-0.3951.33%
136CP355Keywords in ID Attributes131-0.13-0.3782.66%
137CP150a2Search Terms in H2 Tags60-0.13-0.3787.63%
138CP485Keywords in pages most used phrase10-0.13-0.4173.76%
139CP177Keywords in H4-H6 Tags132-0.13-0.3678.03%
140CP126aSearch Terms in A Tags872-0.13-0.3487.28%
141CP057Ahrefs Page Size59,72126,589-0.13-0.2810.87%
142DD011DomDetailer Majestic Referring .gov Links17,156,5572,061,610-0.13-0.1726.59%
143CP409Number of DoFollow External Links6816-0.13-0.3075.95%
144CP473Keywords in Strong Tags173-0.13-0.3480.12%
145CP467Keywords in Section Tags9218-0.13-0.3781.85%
146CP048Ahrefs Image Backlinks15,977488-0.13-0.2313.41%
147CP139Keywords in Class Attributes1807-0.13-0.3373.99%
148CP032Ahrefs Has Image Backlinks10-0.13-0.3713.29%
149ENT012Has Entities in H1 Tags11-0.13-0.3954.34%
150QS006Number of Questions In H2 Tags31-0.13-0.3375.14%
151CP052Ahrefs Linked Root Domains166-0.13-0.3113.53%
152CP154Keywords making whole H1, H2, and H3 Tags10-0.13-0.3873.64%
153CP158Keywords making whole H1-H6 Tags40-0.13-0.3774.91%
154ENT011Meta Description Tag Has Entities11-0.13-0.3951.45%
155QS007Number of Questions In H3 Tags31-0.13-0.3576.18%
156CP007Ahrefs External Links5418-0.13-0.2313.76%
157CPJLD011Has JSON-LD Answer10-0.13-0.3959.19%
158CPXR011Keywords in Button Tags141-0.12-0.3676.42%
159CPJLD131Has JSON-LD LegalService10-0.12-0.366.13%
160CPJLD217Has JSON-LD Question10-0.12-0.3859.19%
161CP353Head Size Kilobytes11941-0.12-0.3377.46%
162CP173Keywords in H4 Tags81-0.12-0.3581.50%
163CP357Inline CSS Kilobytes9128-0.12-0.3578.38%
164CP460Percentage of DoFollow Internal Links9477-0.12-0.3264.05%
165CP465zKeywords in Form Tags51-0.12-0.3672.49%
166CP149Keywords making whole H1 Tags10-0.12-0.3872.02%
167CP099Search Result Number of Dirs in Path32-0.12-0.3360.92%
168CP451Number of US Phone Numbers1307-0.12-0.2771.21%
169CP130Keywords in Article Tags15723-0.12-0.3780.12%
170LSI008LSI Words in H4 Tags607-0.12-0.3184.51%
171CP034Ahrefs Has Internal Links11-0.12-0.3712.37%
172CP347Has US Phone Number10-0.12-0.3854.57%
173CP381aSearch Terms in Meta Descriptions10-0.12-0.3683.82%
174PAGE010Number of Schema Products131-0.12-0.379.36%
175CP380Meta Description Length288123-0.12-0.3170.40%
176CP114Search Result Uses HTTPS11-0.12-0.3661.04%
177CP104bSearch Result Publish Date2,014,085,5931,888,403,043-0.12-0.3147.17%
178CP377Load Time Milliseconds45,8552,443-0.12-0.2568.32%
179CP481bWord Count in Meta Description Tag4420-0.12-0.3269.71%
180CP356Keywords in I Tags293-0.12-0.3375.61%
181CPXR015Keywords in Figure Tags1878-0.12-0.3476.53%
182CP133Keywords in B Tags102-0.12-0.3270.75%
183CP313Has Privacy Policy11-0.12-0.3773.99%
184CPXR007Number of H4 Tags254-0.12-0.3076.07%
185CPJLDxKANumber Of JSON-LD Entity References81-0.12-0.3659.19%
186CP056Ahrefs Pages51-0.12-0.2613.29%
187CP036Ahrefs Has Linked Root Domains11-0.12-0.3612.60%
188CP491Keywords in Value Attributes482-0.12-0.3071.79%
189CP345Has Terms of Service10-0.12-0.3669.36%
190CP428Number of Images without Alt Text7010-0.12-0.3170.87%
191CP142Keywords in Em Tags50-0.11-0.3373.76%
192CP439Number of NoFollow Externa Links304-0.11-0.3173.76%
193CP213Has FavIcon11-0.11-0.3864.05%
194CPJLD189Has JSON-LD Organization10-0.11-0.3862.43%
195PAGE001Is Home Page10-0.11-0.346.36%
196CP060Ahrefs Redirects9,124199-0.11-0.2812.25%
197ENT015Has Entities in H4 Tags10-0.11-0.3650.52%
198CP148Flesch Kincaid Reading Grade74-0.11-0.2628.79%
199CP176Leading Keywords in H4-H6 Tags40-0.11-0.3375.38%
200CP207Has Contact Page11-0.11-0.3556.65%


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