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~/dnsniffer/issuers/firmaprofesional·rank #129

▸ How many domains does Firmaprofesional secure?

108

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

# rank #129 of all CAs ▼ 19 in 30d# all records held: 108# subdomains: 0# intermediates: 3# Spain
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~/issuers/firmaprofesional/history·active domains
108
domains secured by Firmaprofesional on 2026-10-15 · ▼ -22 (-16.92%) since 2025-06-30
90136.5183229.52762025-06-30: 130 active2025-07-31: 254 active2025-08-31: 254 active2025-09-30: 254 active2025-10-31: 254 active2025-11-30: 254 active2025-12-31: 257 active2026-01-31: 258 active2026-02-28: 258 active2026-03-31: 258 active2026-04-30: 258 active2026-05-31: 258 active2026-06-30: 258 active2026-07-31: 258 active2026-08-31: 258 active2026-09-01: 258 active2026-09-02: 257 active2026-09-03: 255 active2026-09-04: 250 active2026-09-05: 250 active2026-09-06: 250 active2026-09-07: 250 active2026-09-08: 246 active2026-09-09: 246 active2026-09-10: 242 active2026-09-11: 242 active2026-09-12: 241 active2026-09-13: 240 active2026-09-14: 240 active2026-09-15: 236 active2026-09-16: 227 active2026-09-17: 222 active2026-09-18: 219 active2026-09-19: 216 active2026-09-20: 215 active2026-09-21: 215 active2026-09-22: 212 active2026-09-23: 170 active2026-09-24: 174 active2026-09-25: 172 active2026-09-26: 169 active2026-09-27: 169 active2026-09-28: 169 active2026-09-29: 167 active2026-09-30: 159 active2026-10-01: 154 active2026-10-02: 151 active2026-10-03: 149 active2026-10-04: 149 active2026-10-05: 149 active2026-10-06: 143 active2026-10-07: 139 active2026-10-08: 130 active2026-10-09: 125 active2026-10-10: 117 active2026-10-11: 117 active2026-10-12: 117 active2026-10-13: 117 active2026-10-14: 116 active2026-10-15: 108 active2025-06-302026-10-15

# y-axis starts at 90, 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
▼ -54.24%
-128 domains
90 days
▼ -58.14%
-150 domains
1 year
▼ -57.48%
-146 domains
# intermediate CAs
Intermediate certificate authorities operating under Firmaprofesional, with the number of active domains each currently secures.
intermediatecountrydomains
AC Firmaprofesional - Secure Web 2025Spain103
AC Firmaprofesional - Secure Web 2024Spain5
AC Firmaprofesional - Secure Web 2022Spain0
# faq
? How many domains does Firmaprofesional secure?
Firmaprofesional is the certificate authority for 108 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is Firmaprofesional gaining or losing market share?
The number of domains secured by Firmaprofesional has shrunk by 57.48% over the last year (-146 domains).
? Which intermediate CAs does Firmaprofesional sign from?
We have seen 3 intermediates under Firmaprofesional, the busiest being “AC Firmaprofesional - Secure Web 2025” with 103 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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