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~/dnsniffer/issuers/wisekey·rank #118

▸ How many domains does WISeKey secure?

180

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

# rank #118 of all CAs ▼ 2 in 30d# all records held: 189# subdomains: 15# intermediates: 3# Switzerland
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~/issuers/wisekey/history·active domains
180
domains secured by WISeKey on 2026-10-15 · ▲ +129 (+252.94%) since 2025-06-30
34.0877.79121.5165.21208.922025-06-30: 51 active2025-07-31: 165 active2025-08-31: 165 active2025-09-30: 165 active2025-10-31: 165 active2025-11-30: 165 active2025-12-31: 173 active2026-01-31: 177 active2026-02-28: 177 active2026-03-31: 177 active2026-04-30: 179 active2026-05-31: 182 active2026-06-30: 185 active2026-07-31: 187 active2026-08-31: 187 active2026-09-01: 186 active2026-09-02: 187 active2026-09-03: 185 active2026-09-04: 185 active2026-09-05: 186 active2026-09-06: 185 active2026-09-07: 185 active2026-09-08: 186 active2026-09-09: 186 active2026-09-10: 184 active2026-09-11: 181 active2026-09-12: 181 active2026-09-13: 179 active2026-09-14: 180 active2026-09-15: 179 active2026-09-16: 183 active2026-09-17: 180 active2026-09-18: 184 active2026-09-19: 186 active2026-09-20: 186 active2026-09-21: 186 active2026-09-22: 186 active2026-09-23: 185 active2026-09-24: 191 active2026-09-25: 192 active2026-09-26: 188 active2026-09-27: 186 active2026-09-28: 182 active2026-09-29: 185 active2026-09-30: 181 active2026-10-01: 178 active2026-10-02: 179 active2026-10-03: 181 active2026-10-04: 179 active2026-10-05: 177 active2026-10-06: 176 active2026-10-07: 175 active2026-10-08: 175 active2026-10-09: 178 active2026-10-10: 178 active2026-10-11: 178 active2026-10-12: 177 active2026-10-13: 179 active2026-10-14: 178 active2026-10-15: 180 active2025-06-302026-10-15

# y-axis starts at 34.08, 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
▲ +0.56%
+1 domains
90 days
▼ -2.70%
-5 domains
1 year
▲ +9.09%
+15 domains
# intermediate CAs
Intermediate certificate authorities operating under WISeKey, with the number of active domains each currently secures.
intermediatecountrydomains
WISeKey CertifyID SSL GB CA 2Switzerland153
WISeKey CertifyID Server RSA CA 1Switzerland27
WISeKey CertifyID Server RSA CA 2Switzerland0
# faq
? How many domains does WISeKey secure?
WISeKey is the certificate authority for 180 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is WISeKey gaining or losing market share?
The number of domains secured by WISeKey has grown by 9.09% over the last year (+15 domains).
? Which intermediate CAs does WISeKey sign from?
We have seen 3 intermediates under WISeKey, the busiest being “WISeKey CertifyID SSL GB CA 2” with 153 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.
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