~/dnsniffer/issuers/cdw·rank #59
▸ How many domains does CDW secure?
3,425
active domains whose current TLS certificate was issued by CDW, as of - 0.00% of all attributed domains.
# rank #59 of all CAs ▲ 1 in 30d# all records held: 3,429# subdomains: 0# intermediates: 1# United States
~/issuers/cdw/history·active domains
3,425
domains secured by CDW on 2026-10-15 · ▲ +2,081 (+154.84%) since 2025-06-30
# y-axis starts at 1.1K, 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
▲ +17.90%
+520 domains
90 days
▲ +23.96%
+662 domains
1 year
▲ +33.79%
+865 domains
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| Sectigo Public Server Authentication CA EV R36 | United States | 3,425 |
# faq
- ? How many domains does CDW secure?
- CDW is the certificate authority for 3,425 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is CDW gaining or losing market share?
- The number of domains secured by CDW has grown by 33.79% over the last year (+865 domains).
- ? Which intermediate CAs does CDW sign from?
- We have seen 1 intermediates under CDW, the busiest being “Sectigo Public Server Authentication CA EV R36” with 3,425 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.