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~/dnsniffer/issuers/geant-vereniging·rank #77

▸ How many domains does GEANT Vereniging secure?

1,803

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

# rank #77 of all CAs ▲ 18 in 30d# all records held: 2,409# subdomains: 371# intermediates: 3# Netherlands
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~/issuers/geant-vereniging/history·active domains
1,803
domains secured by GEANT Vereniging on 2026-10-15 · ▲ +890 (+97.48%) since 2025-07-31
486.84972.921.5K1.9K2.4K2025-07-31: 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 active2026-09-01: 913 active2026-09-02: 901 active2026-09-03: 793 active2026-09-04: 771 active2026-09-05: 755 active2026-09-06: 754 active2026-09-07: 750 active2026-09-08: 741 active2026-09-09: 732 active2026-09-10: 725 active2026-09-11: 715 active2026-09-12: 706 active2026-09-13: 706 active2026-09-14: 706 active2026-09-15: 702 active2026-09-16: 699 active2026-09-17: 694 active2026-09-18: 685 active2026-09-19: 684 active2026-09-20: 683 active2026-09-21: 683 active2026-09-22: 678 active2026-09-23: 675 active2026-09-24: 2,243 active2026-09-25: 2,240 active2026-09-26: 2,240 active2026-09-27: 2,240 active2026-09-28: 2,014 active2026-09-29: 1,850 active2026-09-30: 1,827 active2026-10-01: 1,826 active2026-10-02: 1,824 active2026-10-03: 1,823 active2026-10-04: 1,823 active2026-10-05: 1,822 active2026-10-06: 1,822 active2026-10-07: 1,822 active2026-10-08: 1,822 active2026-10-09: 1,813 active2026-10-10: 1,806 active2026-10-11: 1,805 active2026-10-12: 1,805 active2026-10-13: 1,804 active2026-10-14: 1,803 active2026-10-15: 1,803 active2025-07-312026-10-15

# y-axis starts at 486.84, 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
▲ +156.84%
+1,101 domains
90 days
▲ +97.48%
+890 domains
1 year
▲ +97.48%
+890 domains
# intermediate CAs
Intermediate certificate authorities operating under GEANT Vereniging, with the number of active domains each currently secures.
intermediatecountrydomains
GEANT OV RSA CA 4Netherlands1,663
GEANT EV RSA CA 4Netherlands131
GEANT eScience SSL CA 4Netherlands9
# faq
? How many domains does GEANT Vereniging secure?
GEANT Vereniging is the certificate authority for 1,803 active domains as of October 15, 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 97.48% over the last year (+890 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 1,663 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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