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Top 15 Certificate Authorities

Validation & Certificate Type Distribution

Global SAN & Domain Statistics totals from active certs · sparklines show monthly issuance trend

Total FQDNs

1.95B

Unique FQDNs

1.38B

Total Reg. Domains

1.03B

Unique Reg. Domains

338.0M

Total Wildcard SANs

636.0M

Unique Wildcard SANs

411.7M

All Certificate Authorities · Click row for breakdown

CA Owner ↕	Active Certs ↓	Market Share	Validation Types	Cert Types	Issuance Trend

Top 50 Registered Domains (PSL) sampled from top 5 CAs

#1 amazonaws.com 45.5M

#2 dyingbirds.com 37.3M

#3 aws.dev 34.2M

#4 workdaysuv.com 17.1M

#5 on.aws 8.7M

#6 amplifyapp.com 7.2M

#7 workdaysuvcareers.com 6.2M

#8 sslip.io 5.3M

#9 cloudflarestorage.com 3.5M

#10 chatgpt.site 3.4M

#11 netcraze.io 3.3M

#12 mongodb.net 3.1M

#13 plex.direct 2.7M

#14 zendesk.com 2.6M

#15 cloudflaressl.com 2.5M

#16 workdaysuvsite.com 2.5M

#17 nip.io 2.2M

#18 myvolumio.org 2.1M

#19 ui.direct 1.9M

#20 kinsta.cloud 1.4M

#21 pageloft.de 1.3M

#22 stratoserver.net 1.3M

#23 mybluehost.me 1.2M

#24 amazonaws.com.cn 1.2M

#25 hstgr.cloud 1.2M

#26 hubspot-at-test.com 1.1M

#27 myftpupload.com 1.0M

#28 rorktest.dev 1.0M

#29 a2z.eu 943K

#30 memorydb.us-east-1.amazonaws.com 869K

#31 mmscloudtest.com 846K

#32 s3.us-west-2.amazonaws.com 810K

#33 *.s3.us-west-2.amazonaws.com 810K

#34 *.s3-accesspoint.us-west-2.amazonaws.com 810K

#35 s3.dualstack.us-west-2.amazonaws.com 810K

#36 *.s3-accesspoint.dualstack.us-west-2.amazonaws.com 810K

#37 *.s3.dualstack.us-west-2.amazonaws.com 810K

#38 connect.aws 766K

#39 dualstack.us-east-1.amazonaws.com 621K

#40 s3.us-east-1.amazonaws.com 620K

#41 s3-control.us-east-1.amazonaws.com 620K

#42 *.s3.us-east-1.amazonaws.com 620K

#43 *.s3-accesspoint.us-east-1.amazonaws.com 620K

#44 s3.dualstack.us-east-1.amazonaws.com 620K

#45 *.s3-accesspoint.dualstack.us-east-1.amazonaws.com 620K

#46 *.s3.dualstack.us-east-1.amazonaws.com 620K

#47 metaaivm.com 597K

#48 magdaselfhosting.com 550K

#49 powersrv.de 509K

#50 backname.io 493K

Certificate Duration Breakdown by CA

>1 year

~1 year

90 days

<90 days

🇺🇸ISRG (Let's Encrypt)

100%

🇺🇸Amazon Trust

35%

63%

🇺🇸Google Trust Services

100%

🇺🇸GoDaddy

97%

🇺🇸Sectigo

15%

79%

🇺🇸Microsoft

100%

🇺🇸DigiCert

67%

30%

🇺🇸IdenTrust

53%

47%

🇺🇸SSL.com

98%

🇮🇹Actalis

33%

66%

🇧🇪GlobalSign

39%

51%

10%

🇬🇷HARICA

99%

🇨🇳TrustAsia

11%

89%

🇵🇱Asseco

18%

82%

🇯🇵SECOM

77%

23%

🇯🇵SECOM Trust Systems Co., Ltd.

13%

41%

46%

🇩🇪D-Trust

100%

🇹🇼TWCA

37%

63%

🇨🇭SwissSign AG

100%

🇸🇪Telia Company

95%

🇮🇳eMudhra Technologies Limited

87%

🇨🇳Shanghai Electronic Certification Authority Co., Ltd.

33%

67%

🇩🇪Deutsche Telekom

61%

26%

13%

unknown

38%

59%

🇨🇭OISTE

33%

67%

🇰🇷NAVER Cloud

37%

63%

🇨🇳China Financial Certification Authority (CFCA)

29%

71%

🇩🇪D-TRUST

31%

69%

🇷🇴certSIGN

23%

77%

🇪🇸Government of Spain, Fábrica Nacional de Moneda y Timbre (FNMT)

100%

🇭🇰Government of Hong Kong (SAR), Hongkong Post, Certizen

30%

70%

🇭🇺Microsec Ltd.

59%

41%

🇪🇸Government of Spain, Autoritat de Certificació de la Comunitat Valenciana (ACCV)

100%

Government of Finland, Population Register Centre’s (Väestörekisterikeskus, VRK)

100%

73%

27%

🇪🇸Autoridad de Certificacion Firmaprofesional

100%

🇳🇴Buypass

61%

39%

🇺🇸Open Access Technology International, Inc. (OATI)

97%

🇪🇸Izenpe S.A.

91%

🇨🇳Global Digital Cybersecurity Authority Co., Ltd. (Formerly Guang Dong Certificate Authority (GDCA))

20%

80%

🇫🇷Eviden

100%

🇸🇰Disig, a.s.

33%

67%

🇵🇱Krajowa Izba Rozliczeniowa S.A. (KIR)

100%

🇨🇿První certifikační autorita, a.s.

100%

🇺🇸Viking Cloud, Inc.

58%

42%

🇹🇷Government of Turkey, Kamu Sertifikasyon Merkezi (Kamu SM)

100%

Atos

92%

🇧🇷Serviço Federal de Processamento de Dados

100%

🇺🇸Visa

99%

🇹🇳Agence Nationale de Certification Electronique

100%

Government of India, Ministry of Communications & Information Technology, Controller of Certifying Authorities (CCA)

97%

🇪🇸EDICOM

15%

85%

🇰🇷Government of Korea, KLID

100%

🇯🇵Cybertrust Japan / JCSI

100%

🇨🇳iTrusChina Co., Ltd.

29%

71%

🇪🇸Autoridad de Certificación (ANF AC)

100%

🇨🇳BEIJING CERTIFICATE AUTHORITY Co., Ltd.

100%

🇸🇮SI-TRUST

100%

🇮🇱ComSign

100%

MULTICERT

100%

🇫🇷Certigna

100%

🇵🇹Government of Portugal, Sistema de Certificação Electrónica do Estado (SCEE) / Electronic Certification System of the State

100%

Docaposte Certinomis SAS

100%

Top 50 TLDs sampled from top 5 CAs · top 3 issuers per TLD

#1 .com 458.7M

ISRG (Let's Encrypt) 153.3M Amazon Trust 152.2M GoDaddy 63.3M

#2 .dev 72.5M

Amazon Trust 34.7M Google Trust Services 21.2M ISRG (Let's Encrypt) 13.7M

#3 .net 29.5M

ISRG (Let's Encrypt) 15.4M Google Trust Services 4.6M GoDaddy 4.4M

#4 .org 24.9M

ISRG (Let's Encrypt) 10.1M Sectigo 5.8M GoDaddy 4.7M

#5 .ph 19.8M

ISRG (Let's Encrypt) 19.7M Google Trust Services 58K GoDaddy 16K

#6 .de 19.2M

ISRG (Let's Encrypt) 9.8M Sectigo 7.0M Google Trust Services 1.8M

#7 .io 18.1M

ISRG (Let's Encrypt) 14.0M Sectigo 1.5M Google Trust Services 1.3M

#8 .xyz 14.3M

GoDaddy 8.2M ISRG (Let's Encrypt) 4.0M Google Trust Services 1.5M

#9 .uk 12.1M

ISRG (Let's Encrypt) 5.5M GoDaddy 2.9M Google Trust Services 2.4M

#10 .aws 9.9M

Amazon Trust 9.9M ISRG (Let's Encrypt) 146 Sectigo 5

#11 .cn 8.2M

ISRG (Let's Encrypt) 4.4M Amazon Trust 2.2M Google Trust Services 1.2M

#12 .br 7.9M

ISRG (Let's Encrypt) 5.3M Google Trust Services 2.0M Amazon Trust 295K

#13 .site 7.3M

Google Trust Services 4.3M ISRG (Let's Encrypt) 2.0M Sectigo 650K

#14 .top 6.8M

ISRG (Let's Encrypt) 4.5M Google Trust Services 1.2M GoDaddy 730K

#15 .shop 6.2M

ISRG (Let's Encrypt) 2.9M Google Trust Services 1.6M GoDaddy 1.2M

#16 .info 5.9M

ISRG (Let's Encrypt) 2.6M GoDaddy 1.7M Google Trust Services 909K

#17 .co 5.9M

ISRG (Let's Encrypt) 2.5M GoDaddy 1.5M Google Trust Services 1.2M

#18 .fr 5.8M

ISRG (Let's Encrypt) 4.0M Google Trust Services 884K Sectigo 721K

#19 .ru 5.7M

ISRG (Let's Encrypt) 5.4M Google Trust Services 354K GoDaddy 5K

#20 .to 5.7M

ISRG (Let's Encrypt) 5.6M GoDaddy 58K Google Trust Services 25K

#21 .in 5.7M

ISRG (Let's Encrypt) 2.8M GoDaddy 1.6M Google Trust Services 847K

#22 .nl 5.6M

ISRG (Let's Encrypt) 3.8M Google Trust Services 840K Sectigo 715K

#23 .cloud 5.5M

ISRG (Let's Encrypt) 2.7M Google Trust Services 1.8M Amazon Trust 505K

#24 .app 5.2M

ISRG (Let's Encrypt) 2.0M Google Trust Services 1.7M Sectigo 900K

#25 .au 5.2M

ISRG (Let's Encrypt) 2.7M Google Trust Services 1.3M GoDaddy 744K

#26 .ca 5.1M

ISRG (Let's Encrypt) 2.2M GoDaddy 1.4M Google Trust Services 1.1M

#27 .me 5.0M

ISRG (Let's Encrypt) 3.9M Google Trust Services 432K GoDaddy 313K

#28 .online 4.8M

ISRG (Let's Encrypt) 2.2M Sectigo 897K Google Trust Services 817K

#29 .cc 4.8M

ISRG (Let's Encrypt) 2.5M Google Trust Services 1.3M Sectigo 602K

#30 .direct 4.7M

ISRG (Let's Encrypt) 4.6M Sectigo 30K GoDaddy 5K

#31 .eu 4.3M

ISRG (Let's Encrypt) 2.0M Amazon Trust 1.3M Sectigo 499K

#32 .ai 4.3M

ISRG (Let's Encrypt) 1.4M Google Trust Services 1.0M Sectigo 827K

#33 .it 3.8M

ISRG (Let's Encrypt) 2.6M Sectigo 537K Google Trust Services 513K

#34 .store 3.2M

ISRG (Let's Encrypt) 1.1M GoDaddy 1.1M Google Trust Services 902K

#35 .us 2.9M

GoDaddy 1.1M ISRG (Let's Encrypt) 867K Google Trust Services 540K

#36 .pl 2.8M

ISRG (Let's Encrypt) 2.2M Google Trust Services 356K Sectigo 229K

#37 .vip 2.8M

ISRG (Let's Encrypt) 1.1M GoDaddy 888K Google Trust Services 416K

#38 .ch 2.7M

ISRG (Let's Encrypt) 2.0M Google Trust Services 418K Sectigo 98K

#39 .se 2.2M

ISRG (Let's Encrypt) 1.7M Google Trust Services 306K Sectigo 49K

#40 .id 2.1M

ISRG (Let's Encrypt) 1.4M Google Trust Services 613K Sectigo 65K

#41 .pro 2.0M

ISRG (Let's Encrypt) 1.4M Google Trust Services 405K GoDaddy 155K

#42 .es 2.0M

ISRG (Let's Encrypt) 1.3M Google Trust Services 336K Sectigo 205K

#43 .jp 2.0M

ISRG (Let's Encrypt) 1.3M Amazon Trust 314K Google Trust Services 268K

#44 .be 1.8M

ISRG (Let's Encrypt) 1.3M Google Trust Services 272K Sectigo 144K

#45 .at 1.8M

ISRG (Let's Encrypt) 1.3M Sectigo 245K Google Trust Services 224K

#46 .za 1.8M

ISRG (Let's Encrypt) 1.3M Google Trust Services 274K GoDaddy 134K

#47 .biz 1.7M

ISRG (Let's Encrypt) 669K Sectigo 417K GoDaddy 389K

#48 .cz 1.7M

ISRG (Let's Encrypt) 1.2M Sectigo 281K Google Trust Services 172K

#49 .mx 1.5M

ISRG (Let's Encrypt) 798K Google Trust Services 257K GoDaddy 254K

#50 .link 1.4M

Sectigo 701K ISRG (Let's Encrypt) 466K Google Trust Services 99K

Monthly Issuance Trend — Top 10 CAs (last 6 months)

Monthly Expiry Trend — Top 10 CAs (last 6 months)

Geographic Distribution of Certificate Authorities CA owners & issuing CAs by country · ClickHouse data

🇺🇸 US 12 CAs

🇨🇳 CN 6 CAs

🇪🇸 ES 6 CAs

🇩🇪 DE 3 CAs

🇯🇵 JP 3 CAs

🇨🇭 CH 2 CAs

🇵🇱 PL 2 CAs

🇫🇷 FR 2 CAs

🇰🇷 KR 2 CAs

🇮🇳 IN 1 CA

🇬🇷 GR 1 CA

🇧🇪 BE 1 CA

🇸🇪 SE 1 CA

🇸🇮 SI 1 CA

🇳🇴 NO 1 CA

🇭🇺 HU 1 CA

🇹🇼 TW 1 CA

🇨🇿 CZ 1 CA

🇭🇰 HK 1 CA

🇮🇹 IT 1 CA

🇸🇰 SK 1 CA

🇧🇷 BR 1 CA

🇹🇳 TN 1 CA

🇮🇱 IL 1 CA

🇹🇷 TR 1 CA

🇷🇴 RO 1 CA

🇵🇹 PT 1 CA

Trusted CA Certificate Registry · CCADB 7326 certificates · non-revoked, non-expired · source

CA Owner ↑	Certificate Name ↕	Parent CA ↕	Country ↕	Trust ↕	Trust Bits ↕	Valid From ↕	Valid To ↕