~/dnsniffer/issuers/a-trust-ges-f-sicherheitssysteme-im-elektr-datenverkehr·rank #209
$ dnsniffer count --issuer a-trust-ges-f-sicherheitssysteme-im-elektr-datenverkehr --active

How many domains does A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr secure?

2

active domains whose current TLS certificate was issued by A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr, as of 0.00% of all attributed domains.

# rank #209 of all CAs# all records held: 2# subdomains: 0# intermediates: 1# Austria
~/issuers/a-trust-ges-f-sicherheitssysteme-im-elektr-datenverkehr/history·active domains
2
domains secured by A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr on 2026-08-31 · +1 (+100.00%) since 2025-06-30
0.881.191.51.812.122025-06-30: 1 active2025-07-31: 2 active2025-08-31: 2 active2025-09-30: 2 active2025-10-31: 2 active2025-11-30: 2 active2025-12-31: 2 active2026-01-31: 2 active2026-02-28: 2 active2026-03-31: 2 active2026-04-30: 2 active2026-05-31: 2 active2026-06-30: 2 active2026-07-31: 2 active2026-08-31: 2 active2025-06-302026-08-31

# y-axis starts at 0.88, 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
+0.00%
+0 domains
90 days
+0.00%
+0 domains
1 year
+0.00%
+0 domains
# intermediate CAs
Intermediate certificate authorities operating under A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr, with the number of active domains each currently secures.
intermediatecountrydomains
a-sign-SSL-07Austria2
# faq
? How many domains does A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr secure?
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr is the certificate authority for 2 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
? Is A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr gaining or losing market share?
The number of domains secured by A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr has grown by 0.00% over the last year (+0 domains).
? Which intermediate CAs does A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr sign from?
We have seen 1 intermediate under A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr, the busiest being “a-sign-SSL-07” with 2 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.