Is Certainly or Google Trust Services more popular?

Google Trust Services is used by more websites in our catalog: 776 use Certainly and 228,244 use Google Trust Services.

Does Certainly or Google Trust Services have higher-authority sites?

Certainly sites have the higher median Ahrefs Domain Rating (Certainly: 63, Google Trust Services: 30).

Is Certainly or Google Trust Services growing faster?

Between 2026-06 and 2026-07, Certainly went from 0.12% to 0.09% of all tracked sites, while Google Trust Services went from 30% to 26%. Certainly is gaining ground faster in our index.

Can a site use both Certainly and Google Trust Services?

No. A site runs a single SSL certificate authority, so Certainly and Google Trust Services are mutually exclusive.

Where does this Certainly vs Google Trust Services data come from?

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.

Certainly vs Google Trust Services — Site Stats Database

Certainly vs Google Trust Services

A side-by-side comparison of two ssl certificate authorities, based on the 842,065 SSL Authority sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Certainly	Google Trust Services
Websites	776	228,244
Market share	0.09%	27%
Share of top 10K sites	0.67%	26%

Share of top 100K sites	0.21%	28%

Rank	#14	#2

Median DR	63	30

Average DR	58	33

Median keywords	1,634	1,076

Median referring domains	1,209	450

Median domain age	23 yrs	12 yrs

Average domain age	20 yrs	14 yrs

Average monthly traffic	695,346	128,871

Combined monthly traffic	539,588,145	29,414,009,983

akc.org
LanguageEnglish
DR (Ahrefs)90
Total Keywords655,094
Referring Domains78,973
Domain Age31 yrs
Traffic (Jun 2026)125,727,029
Traffic Trend
TechnologyCertainly
wikihow.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords5,580,639
Referring Domains404,808
Domain Age22 yrs
Traffic (Jun 2026)43,976,309
Traffic Trend
Technology
ubiehealth.com
LanguageEnglish
DR (Ahrefs)62
Total Keywords519,101
Referring Domains2,750
Domain Age4 yrs
Traffic (Jun 2026)31,668,228
Traffic Trend
Technology
ufc.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords103,879
Referring Domains28,384
Domain Age31 yrs
Traffic (Jun 2026)18,875,616
Traffic Trend
TechnologyCertainly
bible.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords681,273
Referring Domains50,220
Domain Age31 yrs
Traffic (Jun 2026)17,974,483
Traffic Trend
TechnologyCertainly
bathandbodyworks.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords89,451
Referring Domains23,742
Domain Age28 yrs
Traffic (Jun 2026)16,958,001
Traffic Trend
Technology
time.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords1,667,220
Referring Domains590,607
Domain Age32 yrs
Traffic (Jun 2026)15,941,582
Traffic Trend
TechnologyCertainly
aad.org
LanguageEnglish
DR (Ahrefs)90
Total Keywords359,999
Referring Domains56,366
Domain Age30 yrs
Traffic (Jun 2026)15,847,168
Traffic Trend
TechnologyCertainly
yale.edu
LanguageEnglish
DR (Ahrefs)91
Total Keywords637,409
Referring Domains270,573
Domain Age39 yrs
Traffic (Jun 2026)14,257,045
Traffic Trend
TechnologyCertainly
arizona.edu
LanguageEnglish
DR (Ahrefs)90
Total Keywords497,891
Referring Domains140,110
Domain Age40 yrs
Traffic (Jun 2026)9,982,834
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
akc.org	English	90	655,094	78,973	31 yrs	125,727,029		Certainly

youtube.com
LanguageEnglish
DR (Ahrefs)99
Total Keywords157,188,909
Referring Domains18,877,970
Domain Age21 yrs
Traffic (Jun 2026)3,508,519,347
Traffic Trend
TechnologyGoogle Trust Services
google.com
LanguageEnglish
DR (Ahrefs)99
Total Keywords14,321,906
Referring Domains28,301,335
Domain Age28 yrs
Traffic (Jun 2026)1,697,994,676
Traffic Trend
Technology
fandom.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords21,866,615
Referring Domains405,077
Domain Age29 yrs
Traffic (Jun 2026)1,021,137,487
Traffic Trend
Technology
clevelandclinic.org
LanguageEnglish
DR (Ahrefs)92
Total Keywords5,266,698
Referring Domains262,751
Domain Age28 yrs
Traffic (Jun 2026)536,244,433
Traffic Trend
Technology
cambridge.org
Language
DR (Ahrefs)92
Total Keywords4,651,462
Referring Domains357,733
Domain Age28 yrs
Traffic (Jun 2026)527,148,452
Traffic Trend
Technology
quora.com
Language
DR (Ahrefs)91
Total Keywords36,342,947
Referring Domains360,723
Domain Age26 yrs
Traffic (Jun 2026)376,801,476
Traffic Trend
TechnologyGoogle Trust Services
mlb.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords1,403,577
Referring Domains165,017
Domain Age31 yrs
Traffic (Jun 2026)376,727,145
Traffic Trend
TechnologyGoogle Trust Services
genius.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords3,824,896
Referring Domains148,123
Domain Age31 yrs
Traffic (Jun 2026)274,953,050
Traffic Trend
Technology
indeed.com
Language
DR (Ahrefs)92
Total Keywords6,459,977
Referring Domains289,179
Domain Age28 yrs
Traffic (Jun 2026)259,330,877
Traffic Trend
Technology
dictionary.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords3,387,790
Referring Domains129,246
Domain Age31 yrs
Traffic (Jun 2026)242,622,664
Traffic Trend
Technology