Is Certum or Japan Registry Services Co., Ltd. more popular?

Certum is used by more websites in our catalog: 579 use Certum and 194 use Japan Registry Services Co., Ltd..

Does Certum or Japan Registry Services Co., Ltd. have higher-authority sites?

Japan Registry Services Co., Ltd. sites have the higher median Ahrefs Domain Rating (Certum: 55, Japan Registry Services Co., Ltd.: 59).

Is Certum or Japan Registry Services Co., Ltd. growing faster?

Between 2026-06 and 2026-07, Certum went from 0.08% to 0.07% of all tracked sites, while Japan Registry Services Co., Ltd. went from 0.03% to 0.02%. Japan Registry Services Co., Ltd. is gaining ground faster in our index.

Can a site use both Certum and Japan Registry Services Co., Ltd.?

No. A site runs a single SSL certificate authority, so Certum and Japan Registry Services Co., Ltd. are mutually exclusive.

Where does this Certum vs Japan Registry Services Co., Ltd. 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.

Certum vs Japan Registry Services Co., Ltd. — Site Stats Database

Certum vs Japan Registry Services Co., Ltd.

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	Certum	Japan Registry Services Co., Ltd.
Websites	579	194
Market share	0.07%	0.02%
Share of top 10K sites	0.00%	0.00%

Share of top 100K sites	0.03%	0.01%

Rank	#17	#25

Median DR	55	59

Average DR	52	55

Median keywords	396	140

Median referring domains	1,388	1,580

Median domain age	15 yrs	24 yrs

Average domain age	15 yrs	20 yrs

Average monthly traffic	15,804	9,237

Combined monthly traffic	9,150,719	1,791,947

auschwitz.org
LanguagePolish
DR (Ahrefs)76
Total Keywords9,509
Referring Domains11,787
Domain Age25 yrs
Traffic (Jun 2026)703,253
Traffic Trend
TechnologyCertum
simcosplay.com
LanguageEnglish
DR (Ahrefs)21
Total Keywords20,259
Referring Domains1,668
Domain Age7 yrs
Traffic (Jun 2026)683,447
Traffic Trend
Technology
uhomes.com
LanguageEnglish
DR (Ahrefs)55
Total Keywords119,316
Referring Domains2,552
Domain Age23 yrs
Traffic (Jun 2026)570,251
Traffic Trend
Technology
abadis.ir
LanguagePersian
DR (Ahrefs)70
Total Keywords110,449
Referring Domains6,192
Domain Age
Traffic (Jun 2026)490,697
Traffic Trend
TechnologyCertum
floorplancreator.net
LanguageEnglish
DR (Ahrefs)42
Total Keywords4,628
Referring Domains987
Domain Age13 yrs
Traffic (Jun 2026)460,176
Traffic Trend
Technology
anchenggy.com
LanguageEnglish
DR (Ahrefs)27
Total Keywords6,466
Referring Domains619
Domain Age12 yrs
Traffic (Jun 2026)332,303
Traffic Trend
Technology
igmetall.de
LanguageGerman
DR (Ahrefs)75
Total Keywords306
Referring Domains9,381
Domain Age
Traffic (Jun 2026)310,727
Traffic Trend
TechnologyCertum
mywanderlust.pl
LanguageEnglish
DR (Ahrefs)47
Total Keywords9,706
Referring Domains2,952
Domain Age13 yrs
Traffic (Jun 2026)283,835
Traffic Trend
Technology
scirp.org
LanguageEnglish
DR (Ahrefs)86
Total Keywords90,804
Referring Domains62,358
Domain Age18 yrs
Traffic (Jun 2026)272,944
Traffic Trend
TechnologyCertum
mfa.gov.ir
Language
DR (Ahrefs)72
Total Keywords3,297
Referring Domains5,427
Domain Age
Traffic (Jun 2026)267,826
Traffic Trend
TechnologyCertum

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
auschwitz.org	Polish	76	9,509	11,787	25 yrs	703,253		Certum

kyoto.travel
LanguageEnglish
DR (Ahrefs)77
Total Keywords6,962
Referring Domains8,975
Domain Age19 yrs
Traffic (Jun 2026)324,051
Traffic Trend
TechnologyJapan Registry Services Co., Ltd.
royal-hawaiian.com
LanguageJapanese
DR (Ahrefs)61
Total Keywords4,602
Referring Domains2,251
Domain Age30 yrs
Traffic (Jun 2026)268,195
Traffic Trend
Technology
hakone-japan.com
LanguageEnglish
DR (Ahrefs)46
Total Keywords3,089
Referring Domains832
Domain Age8 yrs
Traffic (Jun 2026)151,986
Traffic Trend
Technology
meijijingu.or.jp
LanguageJapanese
DR (Ahrefs)72
Total Keywords657
Referring Domains6,156
Domain Age29 yrs
Traffic (Jun 2026)85,253
Traffic Trend
Technology
webike.net
LanguageEnglish
DR (Ahrefs)74
Total Keywords23,413
Referring Domains10,224
Domain Age25 yrs
Traffic (Jun 2026)71,603
Traffic Trend
Technology
matsusada.com
Language
DR (Ahrefs)34
Total Keywords5,170
Referring Domains790
Domain Age29 yrs
Traffic (Jun 2026)70,964
Traffic Trend
Technology
nihongo-e-na.com
Language
DR (Ahrefs)51
Total Keywords2,923
Referring Domains857
Domain Age16 yrs
Traffic (Jun 2026)58,172
Traffic Trend
Technology
nagoya-info.jp
LanguageKorean
DR (Ahrefs)71
Total Keywords1,527
Referring Domains4,443
Domain Age14 yrs
Traffic (Jun 2026)54,680
Traffic Trend
Technology
utaten.com
LanguageJapanese
DR (Ahrefs)64
Total Keywords25,817
Referring Domains5,771
Domain Age21 yrs
Traffic (Jun 2026)50,802
Traffic Trend
Technology
ainu-upopoy.jp
LanguageJapanese
DR (Ahrefs)69
Total Keywords216
Referring Domains1,966
Domain Age7 yrs
Traffic (Jun 2026)37,593
Traffic Trend
Technology