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~/dnsniffer/issuers/one-sign-pte·rank #167

▸ How many domains does One Sign Pte secure?

32

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

# rank #167 of all CAs ▼ 3 in 30d# all records held: 43# subdomains: 3# intermediates: 2# Singapore
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~/issuers/one-sign-pte/history·active domains
32
domains secured by One Sign Pte on 2026-10-14 · ▲ +20 (+166.67%) since 2025-06-30
8.7617.1325.533.8742.242025-06-30: 12 active2025-07-31: 35 active2025-08-31: 35 active2025-09-30: 35 active2025-10-31: 35 active2025-11-30: 35 active2025-12-31: 37 active2026-01-31: 39 active2026-02-28: 39 active2026-03-31: 39 active2026-04-30: 39 active2026-05-31: 39 active2026-06-30: 39 active2026-07-31: 39 active2026-08-31: 39 active2026-09-01: 38 active2026-09-02: 38 active2026-09-03: 32 active2026-09-04: 30 active2026-09-05: 30 active2026-09-06: 30 active2026-09-07: 30 active2026-09-08: 30 active2026-09-09: 29 active2026-09-10: 29 active2026-09-11: 29 active2026-09-12: 29 active2026-09-13: 29 active2026-09-14: 29 active2026-09-15: 29 active2026-09-16: 29 active2026-09-17: 29 active2026-09-18: 29 active2026-09-19: 29 active2026-09-20: 29 active2026-09-21: 29 active2026-09-22: 29 active2026-09-23: 28 active2026-09-24: 32 active2026-09-25: 32 active2026-09-26: 32 active2026-09-27: 33 active2026-09-28: 33 active2026-09-29: 33 active2026-09-30: 33 active2026-10-01: 33 active2026-10-02: 33 active2026-10-03: 33 active2026-10-04: 33 active2026-10-05: 33 active2026-10-06: 33 active2026-10-07: 33 active2026-10-08: 32 active2026-10-09: 32 active2026-10-10: 32 active2026-10-11: 32 active2026-10-12: 32 active2026-10-13: 32 active2026-10-14: 32 active2025-06-302026-10-14

# y-axis starts at 8.76, 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
▲ +10.34%
+3 domains
90 days
▼ -17.95%
-7 domains
1 year
▼ -8.57%
-3 domains
# intermediate CAs
Intermediate certificate authorities operating under One Sign Pte, with the number of active domains each currently secures.
intermediatecountrydomains
OneSignSSL RSA DV Secure Server CASingapore26
One Sign RSA DV SSL CA 2Singapore6
# faq
? How many domains does One Sign Pte secure?
One Sign Pte is the certificate authority for 32 active domains as of October 14, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is One Sign Pte gaining or losing market share?
The number of domains secured by One Sign Pte has shrunk by 8.57% over the last year (-3 domains).
? Which intermediate CAs does One Sign Pte sign from?
We have seen 2 intermediates under One Sign Pte, the busiest being “OneSignSSL RSA DV Secure Server CA” with 26 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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