dnsniffer.com
sign inget started→
~/dnsniffer/issuers/fnmt-rcm·rank #110

▸ How many domains does FNMT-RCM secure?

241

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

# rank #110 of all CAs ▲ 36 in 30d# all records held: 241# subdomains: 0# intermediates: 1# Spain
search domains download the certificate dataset
~/issuers/fnmt-rcm/history·active domains
241
domains secured by FNMT-RCM on 2026-10-15 · ▲ +239 (+11,950.00%) since 2025-06-30
068.82137.64206.46275.282025-06-30: 2 active2025-07-31: 11 active2025-08-31: 12 active2025-09-30: 12 active2025-10-31: 12 active2025-11-30: 12 active2025-12-31: 12 active2026-01-31: 12 active2026-02-28: 12 active2026-03-31: 12 active2026-04-30: 12 active2026-05-31: 12 active2026-06-30: 12 active2026-07-31: 12 active2026-08-31: 12 active2026-09-01: 12 active2026-09-02: 18 active2026-09-03: 20 active2026-09-04: 23 active2026-09-05: 26 active2026-09-06: 25 active2026-09-07: 24 active2026-09-08: 29 active2026-09-09: 39 active2026-09-10: 48 active2026-09-11: 57 active2026-09-12: 64 active2026-09-13: 63 active2026-09-14: 61 active2026-09-15: 66 active2026-09-16: 78 active2026-09-17: 81 active2026-09-18: 87 active2026-09-19: 95 active2026-09-20: 95 active2026-09-21: 95 active2026-09-22: 97 active2026-09-23: 111 active2026-09-24: 130 active2026-09-25: 147 active2026-09-26: 149 active2026-09-27: 156 active2026-09-28: 154 active2026-09-29: 160 active2026-09-30: 168 active2026-10-01: 173 active2026-10-02: 183 active2026-10-03: 190 active2026-10-04: 194 active2026-10-05: 204 active2026-10-06: 214 active2026-10-07: 221 active2026-10-08: 237 active2026-10-09: 243 active2026-10-10: 246 active2026-10-11: 242 active2026-10-12: 241 active2026-10-13: 240 active2026-10-14: 242 active2026-10-15: 241 active2025-06-302026-10-15

# 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
▲ +265.15%
+175 domains
90 days
▲ +1,908.33%
+229 domains
1 year
▲ +1,908.33%
+229 domains
# intermediate CAs
Intermediate certificate authorities operating under FNMT-RCM, with the number of active domains each currently secures.
intermediatecountrydomains
AC SERVIDORES SEGUROS TIPO2 G2RSpain241
# faq
? How many domains does FNMT-RCM secure?
FNMT-RCM is the certificate authority for 241 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is FNMT-RCM gaining or losing market share?
The number of domains secured by FNMT-RCM has grown by 1,908.33% over the last year (+229 domains).
? Which intermediate CAs does FNMT-RCM sign from?
We have seen 1 intermediates under FNMT-RCM, the busiest being “AC SERVIDORES SEGUROS TIPO2 G2R” with 241 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.
all CAs rankedfastest growingfastest decliningTLD rankingsbulk datasets