dnsniffer.com
sign inget started→
~/dnsniffer/issuers/actalis·rank #8

▸ How many domains does Actalis secure?

1,050,398

active domains whose current TLS certificate was issued by Actalis, as of - 0.44% of all attributed domains.

# rank #8 of all CAs# all records held: 1,120,022# subdomains: 34,287# intermediates: 7# Italy
search domains download the certificate dataset
~/issuers/actalis/history·active domains
1,050,398
domains secured by Actalis on 2026-10-15 · ▲ +694,239 (+194.92%) since 2025-06-30
268.6K494.8K720.9K947.0K1.17M2025-06-30: 356,159 active2025-07-31: 856,787 active2025-08-31: 861,358 active2025-09-30: 867,479 active2025-10-31: 867,479 active2025-11-30: 867,479 active2025-12-31: 954,347 active2026-01-31: 1,001,523 active2026-02-28: 1,001,523 active2026-03-31: 1,001,523 active2026-04-30: 1,055,049 active2026-05-31: 1,067,145 active2026-06-30: 1,077,940 active2026-07-31: 1,085,593 active2026-08-31: 1,085,592 active2026-09-01: 1,085,587 active2026-09-02: 1,085,647 active2026-09-03: 1,083,393 active2026-09-04: 1,065,501 active2026-09-05: 1,060,249 active2026-09-06: 1,059,163 active2026-09-07: 1,058,286 active2026-09-08: 1,058,313 active2026-09-09: 1,058,404 active2026-09-10: 1,058,460 active2026-09-11: 1,058,714 active2026-09-12: 1,059,012 active2026-09-13: 1,059,111 active2026-09-14: 1,059,231 active2026-09-15: 1,059,476 active2026-09-16: 1,059,651 active2026-09-17: 1,059,972 active2026-09-18: 1,060,223 active2026-09-19: 1,060,571 active2026-09-20: 1,060,700 active2026-09-21: 1,071,123 active2026-09-22: 1,073,363 active2026-09-23: 1,073,837 active2026-09-24: 1,076,668 active2026-09-25: 1,050,851 active2026-09-26: 1,044,680 active2026-09-27: 1,044,530 active2026-09-28: 1,044,371 active2026-09-29: 1,044,392 active2026-09-30: 1,044,655 active2026-10-01: 1,044,816 active2026-10-02: 1,044,954 active2026-10-03: 1,045,254 active2026-10-04: 1,045,265 active2026-10-05: 1,045,371 active2026-10-06: 1,045,777 active2026-10-07: 1,046,116 active2026-10-08: 1,047,870 active2026-10-09: 1,048,221 active2026-10-10: 1,048,652 active2026-10-11: 1,048,801 active2026-10-12: 1,049,029 active2026-10-13: 1,049,481 active2026-10-14: 1,049,837 active2026-10-15: 1,050,398 active2025-06-302026-10-15

# y-axis starts at 268.6K, 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
▼ -0.86%
-9,078 domains
90 days
▼ -2.56%
-27,542 domains
1 year
▲ +21.09%
+182,919 domains
# intermediate CAs
Intermediate certificate authorities operating under Actalis, with the number of active domains each currently secures.
intermediatecountrydomains
Actalis Domain Validation Server CA G3Italy580,978
Actalis Domain Validated TLS Server RSA CA 2025Italy468,416
Actalis Organization Validated TLS Server RSA CA 2025Italy598
Actalis Organization Validated Server CA G3Italy275
Actalis DV Server ACME CA G1Italy58
Actalis Extended Validation Server CA G3Italy38
Actalis Extended Validation TLS Server RSA CA 2025Italy35
# faq
? How many domains does Actalis secure?
Actalis is the certificate authority for 1,050,398 active domains as of October 15, 2026 - 0.44% of every domain DNSniffer can attribute to an issuer.
? Is Actalis gaining or losing market share?
The number of domains secured by Actalis has grown by 21.09% over the last year (+182,919 domains).
? Which intermediate CAs does Actalis sign from?
We have seen 7 intermediates under Actalis, the busiest being “Actalis Domain Validation Server CA G3” with 580,978 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