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~/dnsniffer/issuers/cersign-technology·rank #159

▸ How many domains does CerSign Technology secure?

59

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

# rank #159 of all CAs ▲ 13 in 30d# all records held: 90# subdomains: 0# intermediates: 3# China
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~/issuers/cersign-technology/history·active domains
59
domains secured by CerSign Technology on 2026-10-15 · ▲ +58 (+5,800.00%) since 2025-06-30
016.4932.9849.4765.962025-06-30: 1 active2025-07-31: 25 active2025-08-31: 25 active2025-09-30: 25 active2025-10-31: 25 active2025-11-30: 25 active2025-12-31: 25 active2026-01-31: 25 active2026-02-28: 25 active2026-03-31: 25 active2026-04-30: 25 active2026-05-31: 25 active2026-06-30: 25 active2026-07-31: 25 active2026-08-31: 25 active2026-09-01: 24 active2026-09-02: 22 active2026-09-03: 19 active2026-09-04: 18 active2026-09-05: 18 active2026-09-06: 15 active2026-09-07: 15 active2026-09-08: 15 active2026-09-09: 15 active2026-09-10: 15 active2026-09-11: 15 active2026-09-12: 15 active2026-09-13: 15 active2026-09-14: 15 active2026-09-15: 15 active2026-09-16: 15 active2026-09-17: 15 active2026-09-18: 15 active2026-09-19: 15 active2026-09-20: 15 active2026-09-21: 15 active2026-09-22: 15 active2026-09-23: 15 active2026-09-24: 58 active2026-09-25: 58 active2026-09-26: 58 active2026-09-27: 58 active2026-09-28: 59 active2026-09-29: 59 active2026-09-30: 59 active2026-10-01: 59 active2026-10-02: 59 active2026-10-03: 59 active2026-10-04: 59 active2026-10-05: 59 active2026-10-06: 59 active2026-10-07: 59 active2026-10-08: 59 active2026-10-09: 59 active2026-10-10: 59 active2026-10-11: 59 active2026-10-12: 59 active2026-10-13: 59 active2026-10-14: 59 active2026-10-15: 59 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
▲ +293.33%
+44 domains
90 days
▲ +136.00%
+34 domains
1 year
▲ +136.00%
+34 domains
# intermediate CAs
Intermediate certificate authorities operating under CerSign Technology, with the number of active domains each currently secures.
intermediatecountrydomains
CerSign DV SSL CAChina55
CerSign RSA DV SSL CA 2China4
CerSign OV SSL CAChina0
# faq
? How many domains does CerSign Technology secure?
CerSign Technology is the certificate authority for 59 active domains as of October 15, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is CerSign Technology gaining or losing market share?
The number of domains secured by CerSign Technology has grown by 136.00% over the last year (+34 domains).
? Which intermediate CAs does CerSign Technology sign from?
We have seen 3 intermediates under CerSign Technology, the busiest being “CerSign DV SSL CA” with 55 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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