~/dnsniffer/issuers/geant-vereniging·rank #88
$ dnsniffer count --issuer geant-vereniging --active

How many domains does GEANT Vereniging secure?

913

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

# rank #88 of all CAs# all records held: 2,578# subdomains: 371# intermediates: 3# Netherlands
~/issuers/geant-vereniging/history·active domains
913
domains secured by GEANT Vereniging on 2026-08-31 · +0 (+0.00%) since 2025-07-31
894.74903.87913922.13931.262025-07-31: 913 active2025-08-31: 913 active2025-09-30: 913 active2025-10-31: 913 active2025-11-30: 913 active2025-12-31: 913 active2026-01-31: 913 active2026-02-28: 913 active2026-03-31: 913 active2026-04-30: 913 active2026-05-31: 913 active2026-06-30: 913 active2026-07-31: 913 active2026-08-31: 913 active2025-07-312026-08-31

# y-axis starts at 894.74, 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 GEANT Vereniging, with the number of active domains each currently secures.
intermediatecountrydomains
GEANT OV RSA CA 4Netherlands901
GEANT EV RSA CA 4Netherlands12
GEANT eScience SSL CA 4Netherlands0
# faq
? How many domains does GEANT Vereniging secure?
GEANT Vereniging is the certificate authority for 913 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
? Is GEANT Vereniging gaining or losing market share?
The number of domains secured by GEANT Vereniging has grown by 0.00% over the last year (+0 domains).
? Which intermediate CAs does GEANT Vereniging sign from?
We have seen 3 intermediates under GEANT Vereniging, the busiest being “GEANT OV RSA CA 4” with 901 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.