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~/dnsniffer/issuers/hao-quang-viet-software-company·rank #95

▸ How many domains does Hao Quang Viet Software Company secure?

737

active domains whose current TLS certificate was issued by Hao Quang Viet Software Company, as of - 0.00% of all attributed domains.

# rank #95 of all CAs ▼ 1 in 30d# all records held: 908# subdomains: 122# intermediates: 4# Vietnam
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~/issuers/hao-quang-viet-software-company/history·active domains
737
domains secured by Hao Quang Viet Software Company on 2026-10-16 · ▲ +447 (+154.14%) since 2025-06-30
220.88399.44578756.56935.122025-06-30: 290 active2025-07-31: 722 active2025-08-31: 726 active2025-09-30: 730 active2025-10-31: 730 active2025-11-30: 730 active2025-12-31: 784 active2026-01-31: 796 active2026-02-28: 796 active2026-03-31: 796 active2026-04-30: 829 active2026-05-31: 839 active2026-06-30: 851 active2026-07-31: 859 active2026-08-31: 859 active2026-09-01: 857 active2026-09-02: 866 active2026-09-03: 845 active2026-09-04: 799 active2026-09-05: 743 active2026-09-06: 742 active2026-09-07: 734 active2026-09-08: 733 active2026-09-09: 731 active2026-09-10: 731 active2026-09-11: 727 active2026-09-12: 727 active2026-09-13: 727 active2026-09-14: 726 active2026-09-15: 728 active2026-09-16: 728 active2026-09-17: 731 active2026-09-18: 726 active2026-09-19: 724 active2026-09-20: 723 active2026-09-21: 722 active2026-09-22: 721 active2026-09-23: 722 active2026-09-24: 789 active2026-09-25: 791 active2026-09-26: 785 active2026-09-27: 782 active2026-09-28: 749 active2026-09-29: 738 active2026-09-30: 735 active2026-10-01: 734 active2026-10-02: 736 active2026-10-03: 737 active2026-10-04: 739 active2026-10-05: 741 active2026-10-06: 739 active2026-10-07: 740 active2026-10-08: 745 active2026-10-09: 748 active2026-10-10: 747 active2026-10-11: 745 active2026-10-12: 742 active2026-10-13: 739 active2026-10-14: 742 active2026-10-15: 740 active2026-10-16: 737 active2025-06-302026-10-16

# y-axis starts at 220.88, 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
▲ +1.24%
+9 domains
90 days
▼ -13.40%
-114 domains
1 year
▲ +0.96%
+7 domains
# intermediate CAs
Intermediate certificate authorities operating under Hao Quang Viet Software Company, with the number of active domains each currently secures.
intermediatecountrydomains
MuaSSL.com TLS Issuing RSA CA R1Vietnam394
MuaSSL.com TLS Issuing RSA CA 2Vietnam343
MuaSSL.com EV TLS Issuing RSA CA 2Vietnam0
MuaSSL.com EV TLS Issuing RSA CA R1Vietnam0
# faq
? How many domains does Hao Quang Viet Software Company secure?
Hao Quang Viet Software Company is the certificate authority for 737 active domains as of October 16, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
? Is Hao Quang Viet Software Company gaining or losing market share?
The number of domains secured by Hao Quang Viet Software Company has grown by 0.96% over the last year (+7 domains).
? Which intermediate CAs does Hao Quang Viet Software Company sign from?
We have seen 4 intermediates under Hao Quang Viet Software Company, the busiest being “MuaSSL.com TLS Issuing RSA CA R1” with 394 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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