dnsniffer.com
sign inget started→
~/dnsniffer/issuers/global-digital-cybersecurity-authority·rank #108

▸ How many domains does Global Digital Cybersecurity Authority secure?

272

active domains whose current TLS certificate was issued by Global Digital Cybersecurity Authority, as of - 0.00% of all attributed domains.

# rank #108 of all CAs ▲ 3 in 30d# all records held: 272# subdomains: 0# intermediates: 6# China
search domains download the certificate dataset
~/issuers/global-digital-cybersecurity-authority/history·active domains
272
domains secured by Global Digital Cybersecurity Authority on 2026-10-15 · ▲ +191 (+235.80%) since 2025-06-30
58.08117.29176.5235.71294.922025-06-30: 81 active2025-07-31: 203 active2025-08-31: 204 active2025-09-30: 206 active2025-10-31: 206 active2025-11-30: 206 active2025-12-31: 214 active2026-01-31: 214 active2026-02-28: 214 active2026-03-31: 214 active2026-04-30: 217 active2026-05-31: 220 active2026-06-30: 225 active2026-07-31: 226 active2026-08-31: 226 active2026-09-01: 226 active2026-09-02: 224 active2026-09-03: 226 active2026-09-04: 226 active2026-09-05: 224 active2026-09-06: 224 active2026-09-07: 224 active2026-09-08: 225 active2026-09-09: 223 active2026-09-10: 225 active2026-09-11: 222 active2026-09-12: 222 active2026-09-13: 222 active2026-09-14: 220 active2026-09-15: 220 active2026-09-16: 217 active2026-09-17: 218 active2026-09-18: 219 active2026-09-19: 221 active2026-09-20: 221 active2026-09-21: 220 active2026-09-22: 219 active2026-09-23: 219 active2026-09-24: 223 active2026-09-25: 223 active2026-09-26: 223 active2026-09-27: 223 active2026-09-28: 227 active2026-09-29: 231 active2026-09-30: 235 active2026-10-01: 233 active2026-10-02: 233 active2026-10-03: 233 active2026-10-04: 233 active2026-10-05: 233 active2026-10-06: 234 active2026-10-07: 234 active2026-10-08: 234 active2026-10-09: 247 active2026-10-10: 258 active2026-10-11: 258 active2026-10-12: 260 active2026-10-13: 263 active2026-10-14: 266 active2026-10-15: 272 active2025-06-302026-10-15

# y-axis starts at 58.08, not zero - domain counts move by fractions of a percent a day. Dashed segments are estimated: reconstructed from certificate first-seen dates before daily snapshots began, not measured on the day.

# change over time
30 days
▲ +23.64%
+52 domains
90 days
▲ +20.89%
+47 domains
1 year
▲ +32.04%
+66 domains
# intermediate CAs
Intermediate certificate authorities operating under Global Digital Cybersecurity Authority, with the number of active domains each currently secures.
intermediatecountrydomains
GDCA TrustAUTH R4 OV SSL CA2China145
GDCA TrustAUTH R4 DV SSL CA2China75
GDCA TrustAUTH DV TLS G3 R31 CAChina27
GDCA TrustAUTH OV TLS G3 R31 CAChina19
GDCA TrustAUTH R4 EV SSL CA2China3
GDCA TrustAUTH EV TLS G3 R31 CAChina3
# faq
? How many domains does Global Digital Cybersecurity Authority secure?
Global Digital Cybersecurity Authority is the certificate authority for 272 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is Global Digital Cybersecurity Authority gaining or losing market share?
The number of domains secured by Global Digital Cybersecurity Authority has grown by 32.04% over the last year (+66 domains).
? Which intermediate CAs does Global Digital Cybersecurity Authority sign from?
We have seen 6 intermediates under Global Digital Cybersecurity Authority, the busiest being “GDCA TrustAUTH R4 OV SSL CA2” with 145 domains. The full list, with per-intermediate counts, is on this page.
? Where does this number come from?
DNSniffer ingests Certificate Transparency logs continuously and records the issuer of the most recent certificate seen for each domain, then snapshots the per-issuer count once a day. It measures how much of the live web a CA currently secures, not how many certificates it has issued over its lifetime.
all CAs rankedfastest growingfastest decliningTLD rankingsbulk datasets