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~/dnsniffer/issuers/wotrus-ca·rank #23

▸ How many domains does WoTrus CA secure?

43,303

active domains whose current TLS certificate was issued by WoTrus CA, as of - 0.02% of all attributed domains.

# rank #23 of all CAs ▼ 1 in 30d# all records held: 44,249# subdomains: 91# intermediates: 10# China
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~/issuers/wotrus-ca/history·active domains
43,303
domains secured by WoTrus CA on 2026-10-15 · ▲ +24,591 (+131.42%) since 2025-06-30
15.8K23.4K31.0K38.6K46.3K2025-06-30: 18,712 active2025-07-31: 30,251 active2025-08-31: 30,483 active2025-09-30: 30,635 active2025-10-31: 30,635 active2025-11-30: 30,635 active2025-12-31: 33,582 active2026-01-31: 34,346 active2026-02-28: 34,346 active2026-03-31: 34,346 active2026-04-30: 37,601 active2026-05-31: 38,535 active2026-06-30: 39,337 active2026-07-31: 39,975 active2026-08-31: 39,977 active2026-09-01: 40,011 active2026-09-02: 40,137 active2026-09-03: 38,907 active2026-09-04: 38,520 active2026-09-05: 38,622 active2026-09-06: 38,630 active2026-09-07: 38,673 active2026-09-08: 38,821 active2026-09-09: 38,953 active2026-09-10: 39,066 active2026-09-11: 39,179 active2026-09-12: 39,238 active2026-09-13: 39,258 active2026-09-14: 39,289 active2026-09-15: 39,424 active2026-09-16: 39,550 active2026-09-17: 39,661 active2026-09-18: 39,794 active2026-09-19: 39,885 active2026-09-20: 39,930 active2026-09-21: 40,020 active2026-09-22: 40,108 active2026-09-23: 40,225 active2026-09-24: 42,220 active2026-09-25: 42,335 active2026-09-26: 42,342 active2026-09-27: 42,350 active2026-09-28: 42,398 active2026-09-29: 42,524 active2026-09-30: 42,615 active2026-10-01: 42,642 active2026-10-02: 42,635 active2026-10-03: 42,634 active2026-10-04: 42,615 active2026-10-05: 42,596 active2026-10-06: 42,595 active2026-10-07: 42,589 active2026-10-08: 42,681 active2026-10-09: 42,829 active2026-10-10: 42,984 active2026-10-11: 43,041 active2026-10-12: 43,070 active2026-10-13: 43,157 active2026-10-14: 43,223 active2026-10-15: 43,303 active2025-06-302026-10-15

# y-axis starts at 15.8K, 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
▲ +9.84%
+3,879 domains
90 days
▲ +10.08%
+3,966 domains
1 year
▲ +41.35%
+12,668 domains
# intermediate CAs
Intermediate certificate authorities operating under WoTrus CA, with the number of active domains each currently secures.
intermediatecountrydomains
WoTrus RSA DV SSL CA 2China30,880
WoTrus DV Server CA [Run by the Issuer]China10,811
WoTrus RSA OV SSL CA 2China1,040
WoTrus OV Server CA [Run by the Issuer]China358
WoTrus OV SSL CAChina122
WoTrus DV SSL CAChina87
WoTrus EV Server CA [Run by the Issuer]China3
WoTrus RSA EV SSL CA 2China1
WoTrus OV SSL Pro CAChina1
WoTrus EV SSL CAChina0
# faq
? How many domains does WoTrus CA secure?
WoTrus CA is the certificate authority for 43,303 active domains as of October 15, 2026 - 0.02% of every domain DNSniffer can attribute to an issuer.
? Is WoTrus CA gaining or losing market share?
The number of domains secured by WoTrus CA has grown by 41.35% over the last year (+12,668 domains).
? Which intermediate CAs does WoTrus CA sign from?
We have seen 10 intermediates under WoTrus CA, the busiest being “WoTrus RSA DV SSL CA 2” with 30,880 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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