Is Japan Registry Services Co., Ltd. or Let's Encrypt more popular?

Let's Encrypt is used by more websites in our catalog: 194 use Japan Registry Services Co., Ltd. and 466,882 use Let's Encrypt.

Does Japan Registry Services Co., Ltd. or Let's Encrypt have higher-authority sites?

Japan Registry Services Co., Ltd. sites have the higher median Ahrefs Domain Rating (Japan Registry Services Co., Ltd.: 59, Let's Encrypt: 23).

Is Japan Registry Services Co., Ltd. or Let's Encrypt growing faster?

Between 2026-06 and 2026-07, Japan Registry Services Co., Ltd. went from 0.03% to 0.02% of all tracked sites, while Let's Encrypt went from 59% to 53%. Japan Registry Services Co., Ltd. is gaining ground faster in our index.

Can a site use both Japan Registry Services Co., Ltd. and Let's Encrypt?

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

Where does this Japan Registry Services Co., Ltd. vs Let's Encrypt 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.

Japan Registry Services Co., Ltd. vs Let's Encrypt — Site Stats Database

Japan Registry Services Co., Ltd. vs Let's Encrypt

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	Japan Registry Services Co., Ltd.	Let's Encrypt
Websites	194	466,882
Market share	0.02%	55%
Share of top 10K sites	0.00%

Share of top 100K sites	0.01%	44%

Rank	#25	#1

Median DR	59	23

Average DR	55	27

Median keywords	140	849

Median referring domains	1,580	270

Median domain age	24 yrs	12 yrs

Average domain age	20 yrs	14 yrs

Average monthly traffic	9,237	108,181

Combined monthly traffic	1,791,947	50,507,691,242

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

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
kyoto.travel	English	77	6,962	8,975	19 yrs	324,051		Japan Registry Services Co., Ltd.

wikipedia.org
LanguageEnglish
DR (Ahrefs)97
Total Keywords61,690,521
Referring Domains6,594,435
Domain Age25 yrs
Traffic (Jun 2026)11,208,499,330
Traffic Trend
TechnologyLet's Encrypt
x.com
LanguageEnglish
DR (Ahrefs)97
Total Keywords15,888,487
Referring Domains4,249,759
Domain Age33 yrs
Traffic (Jun 2026)354,173,918
Traffic Trend
TechnologyLet's Encrypt
nfl.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords947,630
Referring Domains147,040
Domain Age30 yrs
Traffic (Jun 2026)275,712,888
Traffic Trend
TechnologyLet's Encrypt
nba.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords758,560
Referring Domains186,338
Domain Age31 yrs
Traffic (Jun 2026)239,244,892
Traffic Trend
TechnologyLet's Encrypt
stock.adobe.com
Language
DR (Ahrefs)96
Total Keywords3,301,936
Referring Domains116,531
Domain Age39 yrs
Traffic (Jun 2026)225,699,793
Traffic Trend
Technology
weather.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,098,961
Referring Domains132,221
Domain Age27 yrs
Traffic (Jun 2026)221,232,646
Traffic Trend
Technology
expedia.com
Language
DR (Ahrefs)90
Total Keywords4,797,516
Referring Domains112,144
Domain Age30 yrs
Traffic (Jun 2026)208,730,561
Traffic Trend
Technology
target.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords10,174,393
Referring Domains208,795
Domain Age29 yrs
Traffic (Jun 2026)204,573,119
Traffic Trend
Technology
vocabulary.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords2,454,757
Referring Domains42,680
Domain Age29 yrs
Traffic (Jun 2026)192,093,469
Traffic Trend
Technology
allrecipes.com
Language
DR (Ahrefs)89
Total Keywords3,491,845
Referring Domains151,904
Domain Age27 yrs
Traffic (Jun 2026)166,334,891
Traffic Trend
Technology