DNS Coffee ☕
Zone

sd.cn active

First Seen before tracking · First Import Dec 06, 2019 · Last Import Sep 05, 2020 · Type public-suffix · Operator icann · DNSSEC Signed since before Dec 06, 2019

Also indexed as: Domain

2,813
Domains
275
Zone Imports
8
Current Nameservers
0
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 8
Name First Seen Domains
a.dns.cn Before Dec 06, 2019 90
b.dns.cn Before Dec 06, 2019 90
c.dns.cn Before Dec 06, 2019 90
cns.cernet.net Before Dec 06, 2019 78
d.dns.cn Before Dec 06, 2019 87
e.dns.cn Before Dec 06, 2019 87
f.dns.cn Before Dec 06, 2019 87
g.dns.cn Before Dec 06, 2019 87
Past Nameservers 0
Name First Seen Last Seen Domains
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 2,813 domains in this zone, up to 50 — full lists via the API.
Sample Past Domains 0
No domains have left this zone recently.
The most recently removed domains that were in this zone and no longer are, up to 50 — full lists via the API.
SOA 271 serials
Primary NSa.dns.cn
Mailboxroot.cnnic.cn.
Serial2025267314
Refresh2 hours
Retry1 hour
Expire28 days
Minimum TTL6 hours
Show 10 recent serial changes
SerialFirst SeenLast Seen
2025267311 Sep 04, 2020 Sep 04, 2020
2025267308 Sep 03, 2020 Sep 03, 2020
2025267304 Sep 02, 2020 Sep 02, 2020
2025267303 Sep 01, 2020 Sep 01, 2020
2025267298 Aug 31, 2020 Aug 31, 2020
2025267292 Aug 30, 2020 Aug 30, 2020
2025267291 Aug 28, 2020 Aug 29, 2020
2025267277 Aug 27, 2020 Aug 27, 2020
2025267265 Aug 26, 2020 Aug 26, 2020
2025267264 Aug 25, 2020 Aug 25, 2020
Records Browse all

Catch-all zone-file records indexed under this zone, by type.

TXT 2
DNSSEC signed

Signed since before Dec 06, 2019.

Signed domains: 0 · DS records: 0 (as of Sep 10, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAcbGi8TZzkrGQaaCaHeok+n4zU5PdRLrEFGKS1a6vN/+HK42iGpDrUPJnzk2aDB8KPoXw04PDf89u7A0VVzsZHXfx1UuC6xjnuq3D+4/2P2rTIIipRJkqsevbRZZDAzgol1DCWfat7bpNYimZS6iprZH5DN2TjL32z1YvEGnuaSZ4CSj7sOuCGToNbhHi+bdqKo7w5vmvQdID2h2UXvimy1hgJuUVqmHQ18l1Yee/W4/1EW80v9SZxZYiTt02iyVrOCKi5uI5jEo7z72jmvSPgLcU6gujxHmdVe53VutqYgHMCM0Wo8PIi3mz+3RU4KwEjvEiuB7tyrNjYemllh3wWM=
 before Dec 06, 2019
ZSK RSA/SHA-256
showAwEAAbLJm3WbiU1lBfNst5qj2jOY4C9Oi1mz8ldNhsqiN//yhKo1giyj5JF3F1wOtu5zB1Qdqj1IAcshQSHDp8ooBK77iyfLrsSoxyiKhYNK5V31FnzQNZKvpwaJ7k0Duev7AlEBsOeaJMV/x8SS/teRUXR1q2FI5WNI/yHY4yzhjCm7
 before Dec 06, 2019
SignsKey TagSignerExpires
SOA 54306 sd.cn Oct 05, 2020
DNSKEY 54306 sd.cn Sep 27, 2020
DNSKEY 38566 sd.cn Sep 27, 2020
Signature incidents (1)

Periods this zone served no valid signature for some apex type (SOA or DNSKEY), by day.

StartEndDays
Sep 27, 2020 ongoing 2,174