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~/dnsniffer/issuers/the-usertrust-network·rank #43
$ dnsniffer count --issuer the-usertrust-network --active

▸ How many domains does The USERTRUST Network secure?

5,966

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

# rank #43 of all CAs# all records held: 7,364# subdomains: 434# intermediates: 2# United States
search domains download the certificate dataset
~/issuers/the-usertrust-network/history·active domains
5,966
domains secured by The USERTRUST Network on 2026-09-01 · ▲ +5,621 (+1629.28%) since 2025-06-30
02K3K5K7K2025-06-30: 345 active2025-07-31: 5,835 active2025-08-31: 5,856 active2025-09-30: 5,858 active2025-10-31: 5,858 active2025-11-30: 5,858 active2025-12-31: 5,974 active2026-01-31: 5,991 active2026-02-28: 5,991 active2026-03-31: 5,991 active2026-04-30: 5,991 active2026-05-31: 5,991 active2026-06-30: 5,991 active2026-07-31: 5,991 active2026-08-31: 5,991 active2026-09-01: 5,966 active2025-06-302026-09-01

# y-axis starts at 0, 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
▼ -0.42%
-25 domains
90 days
▼ -0.42%
-25 domains
1 year
▲ +1.88%
+110 domains
# intermediate CAs
Intermediate certificate authorities operating under The USERTRUST Network, with the number of active domains each currently secures.
intermediatecountrydomains
USERTrust RSA Domain Validation Secure Server CAUnited States5,929
USERTrust RSA Organization Validation Secure Server CAUnited States37
# faq
? How many domains does The USERTRUST Network secure?
The USERTRUST Network is the certificate authority for 5,966 active domains as of September 1, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is The USERTRUST Network gaining or losing market share?
The number of domains secured by The USERTRUST Network has grown by 1.88% over the last year (+110 domains).
? Which intermediate CAs does The USERTRUST Network sign from?
We have seen 2 intermediates under The USERTRUST Network, the busiest being “USERTrust RSA Domain Validation Secure Server CA” with 5,929 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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