dnsniffer.com
sign inget started→
~/dnsniffer/issuers/china-telecom-cybersecurity-technology·rank #162

▸ How many domains does China Telecom Cybersecurity Technology secure?

53

active domains whose current TLS certificate was issued by China Telecom Cybersecurity Technology, as of - 0.00% of all attributed domains.

# rank #162 of all CAs ▼ 6 in 30d# all records held: 53# subdomains: 0# intermediates: 2# China
search domains download the certificate dataset
~/issuers/china-telecom-cybersecurity-technology/history·active domains
53
domains secured by China Telecom Cybersecurity Technology on 2026-10-14 · ▲ +43 (+430.00%) since 2025-06-30
4.7218.363245.6459.282025-06-30: 10 active2025-07-31: 31 active2025-08-31: 31 active2025-09-30: 31 active2025-10-31: 31 active2025-11-30: 31 active2025-12-31: 35 active2026-01-31: 39 active2026-02-28: 39 active2026-03-31: 39 active2026-04-30: 47 active2026-05-31: 48 active2026-06-30: 49 active2026-07-31: 49 active2026-08-31: 49 active2026-09-01: 49 active2026-09-02: 49 active2026-09-03: 49 active2026-09-04: 49 active2026-09-05: 49 active2026-09-06: 49 active2026-09-07: 49 active2026-09-08: 51 active2026-09-09: 51 active2026-09-10: 51 active2026-09-11: 52 active2026-09-12: 53 active2026-09-13: 53 active2026-09-14: 53 active2026-09-15: 52 active2026-09-16: 51 active2026-09-17: 51 active2026-09-18: 50 active2026-09-19: 50 active2026-09-20: 50 active2026-09-21: 52 active2026-09-22: 53 active2026-09-23: 52 active2026-09-24: 52 active2026-09-25: 52 active2026-09-26: 52 active2026-09-27: 52 active2026-09-28: 52 active2026-09-29: 52 active2026-09-30: 53 active2026-10-01: 53 active2026-10-02: 53 active2026-10-03: 53 active2026-10-04: 53 active2026-10-05: 53 active2026-10-06: 53 active2026-10-07: 53 active2026-10-08: 53 active2026-10-09: 53 active2026-10-10: 54 active2026-10-11: 54 active2026-10-12: 54 active2026-10-13: 53 active2026-10-14: 53 active2025-06-302026-10-14

# y-axis starts at 4.72, 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
▲ +0.00%
+0 domains
90 days
▲ +8.16%
+4 domains
1 year
▲ +70.97%
+22 domains
# intermediate CAs
Intermediate certificate authorities operating under China Telecom Cybersecurity Technology, with the number of active domains each currently secures.
intermediatecountrydomains
CT2 OV TLS RSA CA G2China37
CT2 DV TLS RSA CA G2China16
# faq
? How many domains does China Telecom Cybersecurity Technology secure?
China Telecom Cybersecurity Technology is the certificate authority for 53 active domains as of October 14, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is China Telecom Cybersecurity Technology gaining or losing market share?
The number of domains secured by China Telecom Cybersecurity Technology has grown by 70.97% over the last year (+22 domains).
? Which intermediate CAs does China Telecom Cybersecurity Technology sign from?
We have seen 2 intermediates under China Telecom Cybersecurity Technology, the busiest being “CT2 OV TLS RSA CA G2” with 37 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