~/dnsniffer/issuers/hongkong-post·rank #89
$ dnsniffer count --issuer hongkong-post --active
▸ How many domains does Hongkong Post secure?
884
active domains whose current TLS certificate was issued by Hongkong Post, as of — 0.00% of all attributed domains.
# rank #89 of all CAs# all records held: 885# subdomains: 97# intermediates: 2# Hong Kong SAR China
~/issuers/hongkong-post/history·active domains
884
domains secured by Hongkong Post on 2026-08-31 · ▲ +576 (+187.01%) since 2025-06-30
# y-axis starts at 238.88, 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
▲ +0.80%
+7 domains
1 year
▲ +6.76%
+56 domains
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| Hongkong Post e-Cert SSL CA 3 - 17 | Hong Kong SAR China | 881 |
| Hongkong Post e-Cert EV SSL CA 3 - 17 | Hong Kong SAR China | 3 |
# faq
- ? How many domains does Hongkong Post secure?
- Hongkong Post is the certificate authority for 884 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is Hongkong Post gaining or losing market share?
- The number of domains secured by Hongkong Post has grown by 6.76% over the last year (+56 domains).
- ? Which intermediate CAs does Hongkong Post sign from?
- We have seen 2 intermediates under Hongkong Post, the busiest being “Hongkong Post e-Cert SSL CA 3 - 17” with 881 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.