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~/dnsniffer/issuers/sectigo-europe-sl·rank #116

▸ How many domains does Sectigo (Europe) SL secure?

188

active domains whose current TLS certificate was issued by Sectigo (Europe) SL, as of - 0.00% of all attributed domains.

# rank #116 of all CAs ▼ 1 in 30d# all records held: 188# subdomains: 2# intermediates: 2# Spain
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~/issuers/sectigo-europe-sl/history·active domains
188
domains secured by Sectigo (Europe) SL on 2026-10-15 · ▲ +85 (+82.52%) since 2025-06-30
92.2120.1148175.9203.82025-06-30: 103 active2025-07-31: 173 active2025-08-31: 173 active2025-09-30: 174 active2025-10-31: 174 active2025-11-30: 174 active2025-12-31: 177 active2026-01-31: 178 active2026-02-28: 178 active2026-03-31: 178 active2026-04-30: 179 active2026-05-31: 179 active2026-06-30: 183 active2026-07-31: 183 active2026-08-31: 184 active2026-09-01: 184 active2026-09-02: 184 active2026-09-03: 184 active2026-09-04: 182 active2026-09-05: 179 active2026-09-06: 178 active2026-09-07: 176 active2026-09-08: 176 active2026-09-09: 188 active2026-09-10: 187 active2026-09-11: 186 active2026-09-12: 184 active2026-09-13: 182 active2026-09-14: 180 active2026-09-15: 180 active2026-09-16: 181 active2026-09-17: 179 active2026-09-18: 183 active2026-09-19: 183 active2026-09-20: 181 active2026-09-21: 181 active2026-09-22: 184 active2026-09-23: 183 active2026-09-24: 189 active2026-09-25: 190 active2026-09-26: 186 active2026-09-27: 185 active2026-09-28: 183 active2026-09-29: 189 active2026-09-30: 188 active2026-10-01: 186 active2026-10-02: 187 active2026-10-03: 191 active2026-10-04: 186 active2026-10-05: 186 active2026-10-06: 188 active2026-10-07: 188 active2026-10-08: 189 active2026-10-09: 193 active2026-10-10: 192 active2026-10-11: 191 active2026-10-12: 188 active2026-10-13: 191 active2026-10-14: 189 active2026-10-15: 188 active2025-06-302026-10-15

# y-axis starts at 92.2, 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
▲ +4.44%
+8 domains
90 days
▲ +2.73%
+5 domains
1 year
▲ +8.05%
+14 domains
# intermediate CAs
Intermediate certificate authorities operating under Sectigo (Europe) SL, with the number of active domains each currently secures.
intermediatecountrydomains
Sectigo Qualified Website Authentication CA R39Spain151
Sectigo Qualified Website Authentication CA R35Spain37
# faq
? How many domains does Sectigo (Europe) SL secure?
Sectigo (Europe) SL is the certificate authority for 188 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is Sectigo (Europe) SL gaining or losing market share?
The number of domains secured by Sectigo (Europe) SL has grown by 8.05% over the last year (+14 domains).
? Which intermediate CAs does Sectigo (Europe) SL sign from?
We have seen 2 intermediates under Sectigo (Europe) SL, the busiest being “Sectigo Qualified Website Authentication CA R39” with 151 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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