DNS Coffee ☕
Zone

edu.cn active

First Seen before tracking · First Import Jul 10, 2020 · Last Import Mar 24, 2021 · Type public-suffix · Operator icann · DNSSEC Signed since before Jul 10, 2020

Also indexed as: Domain

6,370
Domains
257
Zone Imports
5
Current Nameservers
0
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 5
Name First Seen Domains
deneb.dfn.de Before Jul 10, 2020 2,433
dns.edu.cn Before Jul 10, 2020 52
dns2.edu.cn Before Jul 10, 2020 26
ns2.cernet.net Before Jul 10, 2020 2
ns2.cuhk.hk Before Jul 10, 2020 2
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 6,370 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 257 serials
Primary NSdns.edu.cn
Mailboxhostmaster.net.edu.cn.
Serial2021032341
Refresh2 hours
Retry30 minutes
Expire7 days
Minimum TTL6 hours
Show 10 recent serial changes
SerialFirst SeenLast Seen
2021032321 Mar 23, 2021 Mar 23, 2021
2021031892 Mar 22, 2021 Mar 22, 2021
2021031881 Mar 21, 2021 Mar 21, 2021
2021031866 Mar 20, 2021 Mar 20, 2021
2021031851 Mar 19, 2021 Mar 19, 2021
2021031837 Mar 18, 2021 Mar 18, 2021
2021031809 Mar 17, 2021 Mar 17, 2021
2021031791 Mar 16, 2021 Mar 16, 2021
2021031769 Mar 15, 2021 Mar 15, 2021
2021031758 Mar 14, 2021 Mar 14, 2021
Records Browse all

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

TYPE65534 2 MX 2
DNSSEC signed

Signed since before Jul 10, 2020.

Signed domains: 29 · DS records: 29 (as of Sep 17, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAdkXpELr8ax9Gu8CRfA7Iux8G32usl8Lgs917ZELiWaoZgufgNALQHLSffJPbnZ/Qg6BPKB0RkhnUNX6066yLo3evWQB6keio+JW/CHXF2orSgt1T+zDUqSKeE5Mc4uPeq+nFmpP6SFbSz82IMlEYylbfvxBj16TqP5uNPAKN8MCm2gFNRjTx8/e8BZQ93OwrfyBTJWkBWsaUUIUwhLqKtJuEovJZnvaNctOcKpJRk1FM0/swxVt1b4I7iLUJKBMSEIGeZvw72SnvqicqVOOLoE8NWTRzJMWs8RrrJp9OFy28O6fnwCR57cDpQQlHdvpIBsxiHPKGfcqRoX6gDqf7qs=
 before Jul 10, 2020
ZSK RSA/SHA-256
showAwEAAb3/T3Lk2Vr+u5Xhi+OTUMRG9pJ27pmVRjzuh4ZrAUKa8gs63E0XMWzyvRySF08aKJKH506pcRY7B4tcdSLnxwuS2cMgBMfscCs64VXJYo9SFYl8rHethOBxVfRxNIrOx41VyABTnni9MK47fhGTV0L8j+nmWpuVH/9lsP1DvYSj
 before Jul 10, 2020
SignsKey TagSignerExpires
SOA 21204 edu.cn Apr 23, 2021
DNSKEY 21204 edu.cn Apr 11, 2021
DNSKEY 15397 edu.cn Apr 11, 2021
Signature incidents (1)

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

StartEndDays
Apr 12, 2021 ongoing 1,984