~/dnsniffer/issuers/swisssign·rank #48
$ dnsniffer count --issuer swisssign --active

How many domains does SwissSign secure?

4,596

active domains whose current TLS certificate was issued by SwissSign, as of 0.00% of all attributed domains.

# rank #48 of all CAs# all records held: 4,667# subdomains: 1,135# intermediates: 9# Switzerland
~/issuers/swisssign/history·active domains
4,596
domains secured by SwissSign on 2026-08-31 · +2,943 (+178.04%) since 2025-06-30
1K2K3K4K5K2025-06-30: 1,653 active2025-07-31: 4,070 active2025-08-31: 4,077 active2025-09-30: 4,089 active2025-10-31: 4,089 active2025-11-30: 4,089 active2025-12-31: 4,149 active2026-01-31: 4,325 active2026-02-28: 4,325 active2026-03-31: 4,325 active2026-04-30: 4,435 active2026-05-31: 4,511 active2026-06-30: 4,577 active2026-07-31: 4,595 active2026-08-31: 4,596 active2025-06-302026-08-31

# y-axis starts at 1K, 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
+0.02%
+1 domains
90 days
+1.88%
+85 domains
1 year
+12.73%
+519 domains
# intermediate CAs
Intermediate certificate authorities operating under SwissSign, with the number of active domains each currently secures.
intermediatecountrydomains
SwissSign RSA TLS OV ICA 2022 - 1Switzerland2,469
SwissSign RSA TLS DV ICA 2022 - 1Switzerland1,383
SwissSign RSA TLS EV ICA 2022 - 1Switzerland743
SwissSign RSA TLS OV ICA 2026 - 1Switzerland1
SwissSign RSA TLS DV ICA 2021 - 1Switzerland0
SwissSign RSA TLS EV ICA 2021 - 1Switzerland0
SwissSign RSA TLS OV ICA 2021 - 1Switzerland0
SwissSign RSA TLS DV ICA 2026 - 1Switzerland0
SwissSign RSA TLS EV ICA 2026 - 1Switzerland0
# faq
? How many domains does SwissSign secure?
SwissSign is the certificate authority for 4,596 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
? Is SwissSign gaining or losing market share?
The number of domains secured by SwissSign has grown by 12.73% over the last year (+519 domains).
? Which intermediate CAs does SwissSign sign from?
We have seen 9 intermediates under SwissSign, the busiest being “SwissSign RSA TLS OV ICA 2022 - 1” with 2,469 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.