Does Gandi 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 (Gandi: 59, Hellenic Academic and Research Institutions CA: 75).

Is Gandi or Hellenic Academic and Research Institutions CA growing faster?

Between 2026-06 and 2026-07, Gandi went from 0.02% to 0.02% of all tracked sites, while Hellenic Academic and Research Institutions CA went from 0.17% to 0.13%. Gandi is gaining ground faster in our index.

Can a site use both Gandi and Hellenic Academic and Research Institutions CA?

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

Gandi vs Hellenic Academic and Research Institutions CA — Site Stats Database

Gandi vs Hellenic Academic and Research Institutions CA

Q: Is Gandi or Hellenic Academic and Research Institutions CA more popular?

Hellenic Academic and Research Institutions CA is used by more websites in our catalog: 163 use Gandi and 1,161 use Hellenic Academic and Research Institutions CA.

Q: Where does this Gandi 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	Gandi	Hellenic Academic and Research Institutions CA
Websites	163	1,161
Market share	0.02%	0.14%
Share of top 10K sites	0.02%

Share of top 100K sites	0.02%	0.06%

Rank	#28	#11

Median DR	59	75

Average DR	53	74

Median keywords	930	658

Median referring domains	1,720	5,129

Median domain age	19 yrs	26 yrs

Average domain age	19 yrs	24 yrs

Average monthly traffic	59,736	13,566

Combined monthly traffic	9,736,953	15,749,601

louvre.fr
LanguageFrench
DR (Ahrefs)86
Total Keywords19,607
Referring Domains61,226
Domain Age30 yrs
Traffic (Jun 2026)2,251,143
Traffic Trend
TechnologyGandi
deezer.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords522,975
Referring Domains205,800
Domain Age22 yrs
Traffic (Jun 2026)1,583,412
Traffic Trend
Technology
japan-experience.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords65,466
Referring Domains10,784
Domain Age15 yrs
Traffic (Jun 2026)782,566
Traffic Trend
Technology
coe.int
Language
DR (Ahrefs)91
Total Keywords63,228
Referring Domains128,698
Domain Age28 yrs
Traffic (Jun 2026)770,622
Traffic Trend
TechnologyGandi
parisaeroport.fr
Language
DR (Ahrefs)79
Total Keywords10,457
Referring Domains9,344
Domain Age21 yrs
Traffic (Jun 2026)604,203
Traffic Trend
Technology
ich.unesco.org
LanguageEnglish
DR (Ahrefs)92
Total Keywords14,499
Referring Domains24,893
Domain Age32 yrs
Traffic (Jun 2026)491,129
Traffic Trend
Technology
theceramicshop.com
LanguageEnglish
DR (Ahrefs)51
Total Keywords20,813
Referring Domains854
Domain Age23 yrs
Traffic (Jun 2026)425,427
Traffic Trend
Technology
ligue1.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords3,842
Referring Domains16,917
Domain Age18 yrs
Traffic (Jun 2026)340,791
Traffic Trend
Technology
delsey.com
Language
DR (Ahrefs)63
Total Keywords7,053
Referring Domains3,626
Domain Age27 yrs
Traffic (Jun 2026)230,325
Traffic Trend
TechnologyGandi
royalparks.org.uk
LanguageEnglish
DR (Ahrefs)79
Total Keywords6,047
Referring Domains13,188
Domain Age25 yrs
Traffic (Jun 2026)184,940
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
louvre.fr	French	86	19,607	61,226	30 yrs	2,251,143		Gandi

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