~/dnsniffer/issuers/chunghwa-telecom·rank #101
$ dnsniffer count --issuer chunghwa-telecom --active
▸ How many domains does Chunghwa Telecom secure?
519
active domains whose current TLS certificate was issued by Chunghwa Telecom, as of — 0.00% of all attributed domains.
# rank #101 of all CAs# all records held: 519# subdomains: 0# intermediates: 1# Taiwan
~/issuers/chunghwa-telecom/history·active domains
519
domains secured by Chunghwa Telecom on 2026-08-31 · ▲ +366 (+239.22%) since 2025-06-30
# y-axis starts at 109.08, 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
▲ +0.00%
+0 domains
90 days
▲ +0.58%
+3 domains
1 year
▲ +1.17%
+6 domains
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| Chunghwa Telecom GCC R46 OV TLS CA 2025 | Taiwan | 519 |
# faq
- ? How many domains does Chunghwa Telecom secure?
- Chunghwa Telecom is the certificate authority for 519 active domains as of August 31, 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 grown by 1.17% over the last year (+6 domains).
- ? Which intermediate CAs does Chunghwa Telecom sign from?
- We have seen 1 intermediate under Chunghwa Telecom, the busiest being “Chunghwa Telecom GCC R46 OV TLS CA 2025” with 519 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.