Is Google Trust Services or Hellenic Academic and Research Institutions CA more popular?

Google Trust Services is used by more websites in our catalog: 228,244 use Google Trust Services and 1,161 use Hellenic Academic and Research Institutions CA.

Is Google Trust Services or Hellenic Academic and Research Institutions CA growing faster?

Between 2026-06 and 2026-07, Google Trust Services went from 30% to 26% of all tracked sites, while Hellenic Academic and Research Institutions CA went from 0.17% to 0.13%. Hellenic Academic and Research Institutions CA is gaining ground faster in our index.

Can a site use both Google Trust Services and Hellenic Academic and Research Institutions CA?

No. A site runs a single SSL certificate authority, so Google Trust Services and Hellenic Academic and Research Institutions CA are mutually exclusive.

Google Trust Services vs Hellenic Academic and Research Institutions CA — Site Stats Database

Google Trust Services vs Hellenic Academic and Research Institutions CA

Q: Does Google Trust Services or Hellenic Academic and Research Institutions CA have higher-authority sites?

Hellenic Academic and Research Institutions CA sites have the higher median Ahrefs Domain Rating (Google Trust Services: 30, Hellenic Academic and Research Institutions CA: 75).

Q: Where does this Google Trust Services vs Hellenic Academic and Research Institutions CA 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.

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	Google Trust Services	Hellenic Academic and Research Institutions CA
Websites	228,244	1,161
Market share	27%	0.14%
Share of top 10K sites

Share of top 100K sites	28%	0.06%

Rank	#2	#11

Median DR	30	75

Average DR	33	74

Median keywords	1,076	658

Median referring domains	450	5,129

Median domain age	12 yrs	26 yrs

Average domain age	14 yrs	24 yrs

Average monthly traffic	128,871	13,566

Combined monthly traffic	29,414,009,983	15,749,601

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

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
youtube.com	English	99	157,188,909	18,877,970	21 yrs	3,508,519,347		Google Trust Services

mpg.de
LanguageGerman
DR (Ahrefs)89
Total Keywords61,365
Referring Domains103,616
Domain Age
Traffic (Jun 2026)560,707
Traffic Trend
TechnologyHellenic Academic and Research Institutions CA
ucm.es
LanguageSpanish
DR (Ahrefs)84
Total Keywords21,955
Referring Domains58,616
Domain Age
Traffic (Jun 2026)520,587
Traffic Trend
TechnologyHellenic Academic and Research Institutions CA
eso.org
LanguageEnglish
DR (Ahrefs)82
Total Keywords18,717
Referring Domains32,647
Domain Age35 yrs
Traffic (Jun 2026)398,404
Traffic Trend
TechnologyHellenic Academic and Research Institutions CA
cun.es
LanguageSpanish
DR (Ahrefs)75
Total Keywords72,981
Referring Domains9,254
Domain Age
Traffic (Jun 2026)394,191
Traffic Trend
TechnologyHellenic Academic and Research Institutions CA
hal.science
LanguageEnglish
DR (Ahrefs)85
Total Keywords68,893
Referring Domains58,817
Domain Age
Traffic (Jun 2026)357,126
Traffic Trend
Technology
belgium.be
LanguageEnglish
DR (Ahrefs)90
Total Keywords12,117
Referring Domains64,675
Domain Age31 yrs
Traffic (Jun 2026)290,046
Traffic Trend
Technology
astro4edu.org
LanguageEnglish
DR (Ahrefs)48
Total Keywords15,128
Referring Domains1,030
Domain Age6 yrs
Traffic (Jun 2026)262,741
Traffic Trend
Technology
plantnet.org
LanguageEnglish
DR (Ahrefs)74
Total Keywords11,086
Referring Domains7,165
Domain Age12 yrs
Traffic (Jun 2026)234,714
Traffic Trend
Technology
bund.de
LanguageEnglish
DR (Ahrefs)94
Total Keywords99,279
Referring Domains462,466
Domain Age
Traffic (Jun 2026)224,202
Traffic Trend
TechnologyHellenic Academic and Research Institutions CA
habsburger.net
LanguageGerman
DR (Ahrefs)63
Total Keywords6,739
Referring Domains3,814
Domain Age17 yrs
Traffic (Jun 2026)188,745
Traffic Trend
Technology