~/dnsniffer/issuers/chunghwa-telecom·rank #103
▸ How many domains does Chunghwa Telecom secure?
489
active domains whose current TLS certificate was issued by Chunghwa Telecom, as of - 0.00% of all attributed domains.
# rank #103 of all CAs ▼ 2 in 30d# all records held: 489# subdomains: 0# intermediates: 1# Taiwan
~/issuers/chunghwa-telecom/history·active domains
489
domains secured by Chunghwa Telecom on 2026-10-15 · ▲ +336 (+219.61%) since 2025-06-30
# y-axis starts at 108.96, 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
▼ -2.98%
-15 domains
90 days
▼ -5.60%
-29 domains
1 year
▼ -4.68%
-24 domains
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| Chunghwa Telecom GCC R46 OV TLS CA 2025 | Taiwan | 489 |
# faq
- ? How many domains does Chunghwa Telecom secure?
- Chunghwa Telecom is the certificate authority for 489 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is Chunghwa Telecom gaining or losing market share?
- The number of domains secured by Chunghwa Telecom has shrunk by 4.68% over the last year (-24 domains).
- ? Which intermediate CAs does Chunghwa Telecom sign from?
- We have seen 1 intermediates under Chunghwa Telecom, the busiest being “Chunghwa Telecom GCC R46 OV TLS CA 2025” with 489 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.