~/dnsniffer/issuers/the-trustico-group·rank #56
$ dnsniffer count --issuer the-trustico-group --active
▸ How many domains does The Trustico Group secure?
3,530
active domains whose current TLS certificate was issued by The Trustico Group, as of — 0.00% of all attributed domains.
# rank #56 of all CAs# all records held: 3,695# subdomains: 163# intermediates: 6# United Kingdom
~/issuers/the-trustico-group/history·active domains
3,530
domains secured by The Trustico Group on 2026-08-31 · ▲ +2,980 (+541.82%) since 2025-06-30
# y-axis starts at 192.40000000000003, 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
▲ +1.70%
+59 domains
1 year
▲ +10.76%
+343 domains
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| Trustico RSA DV SSL CA 2 | — | 2,319 |
| Trustico RSA DV CA | United Kingdom | 1,193 |
| Trustico RSA OV SSL CA 2 | United Kingdom | 8 |
| Trustico RSA EV CA | United Kingdom | 5 |
| Trustico RSA EV SSL CA 2 | United Kingdom | 5 |
| Trustico RSA OV CA | United Kingdom | 0 |
# faq
- ? How many domains does The Trustico Group secure?
- The Trustico Group is the certificate authority for 3,530 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is The Trustico Group gaining or losing market share?
- The number of domains secured by The Trustico Group has grown by 10.76% over the last year (+343 domains).
- ? Which intermediate CAs does The Trustico Group sign from?
- We have seen 6 intermediates under The Trustico Group, the busiest being “Trustico RSA DV SSL CA 2” with 2,319 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.