DNS Coffee ☕
Zone

citadel active

First Seen Jul 24, 2016 · First Import Sep 01, 2016 · Last Import Nov 07, 2026 · Type generic · Operator Citadel Domain LLC · DNSSEC Signed since before Sep 05, 2019

Also indexed as: Domain Nameserver

2
Domains
3,700
Zone Imports
4
Current Nameservers
6
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 4
Name First Seen Domains
a0.nic.citadel Sep 26, 2023 2
b0.nic.citadel Sep 26, 2023 2
c0.nic.citadel Sep 26, 2023 2
a2.nic.citadel Sep 26, 2023 2
Past Nameservers 6
Name First Seen Last Seen Domains
ns4.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
ns1.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
ns2.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
ns6.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
ns5.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
ns3.dns.nic.citadel Jul 24, 2016 Sep 25, 2023 0
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 2 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 1,803 serials
Primary NSa0.nic.citadel
Mailboxhostmaster.donuts.email.
Serial1794013381
Refresh2 hours
Retry15 minutes
Expire14 days
Minimum TTL1 hour
Show 10 recent serial changes
SerialFirst SeenLast Seen
1793926573 Nov 06, 2026 Nov 06, 2026
1793840449 Nov 05, 2026 Nov 05, 2026
1793754319 Nov 04, 2026 Nov 04, 2026
1793667559 Nov 03, 2026 Nov 03, 2026
1793581423 Nov 02, 2026 Nov 02, 2026
1793494651 Nov 01, 2026 Nov 01, 2026
1793408581 Oct 31, 2026 Oct 31, 2026
1793321857 Oct 30, 2026 Oct 30, 2026
1793236051 Oct 29, 2026 Oct 29, 2026
1793149255 Oct 28, 2026 Oct 28, 2026
DNSSEC signed

Signed since before Sep 05, 2019. (zone file as of Nov 07, 2026)

Signed domains: 1 · DS records: 1 (as of Nov 07, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAbku3RD+lma1NDPWqRvxtZiiwu12N0VDsgfZR60Mii2IAKnJ5QnrjJiv/PlPe3lbCeXEbn5pXUjUJZEERxE0roSD0AqaxO9Y7uiXGSJOKk5Pla+YH5xIKqAVJxS6o1LRj1+5YNispKe92xqLrncCjv06KXBYaizxb48A/E1Zy3504mWkcCXINB6unkj1W+rVSAv1p+yDt5GMweOmXqIKgXk82PX2TDyBQUknypzjc7O7skk4eyJEKGVJJq2FTz+Ses0o32T1y/wlwhGrQQqhm/tgiIU9atuCSPeV9QXnDWZ5RnUyjZLPc7E2cW9O7XOlJWWKcRR8aJhcqPWw5mym/JE=
 Sep 19, 2026
KSK RSA/SHA-256
showAwEAAdP4jS7yJkqlnm5aDnXDSdM4tlbyZXZVymmZE9tIdTqSZqGzV8wKUSudyZwKt8xkIFHdw1r6W8ADVFjB7LPfyhGT/2BQVm2vTnHe7vGyq6aXKAZgK+5atnPllRH56oUMUblrHnvX5kAubUoAdEe6KQQcX+1Em5SUK6GvOSKziQi60JAbuZLRMNiABsTQCUGpB5nPv39t4vGef2EE/4t8p3stxBxRk1eI8izCb2HaEg4ekwcmFyeobC3UgLUMz5WER7qmv1XoyItqkBF4/BtEh9GxsvNdiY5pX5YJ3u7O9hDEwBLAYvfpCP4vMdOZPB+KvUTtG+lZ1hbSTD41OV4K9Js=
 May 26, 2023
ZSK RSA/SHA-256
showAwEAAbE/OG4T4iUb6Okm8SyX5PuO6ihFz6bwJzE0vO1Er4BwjYFbuWFCBxeiXCMiQV+6uHBbgPB4/6plitPBXH4cxnO8//wuXXWB9m5yCfYlC9LrI2itMKuLyFQMo8UyYl04HrVkblSyqaKTv35FzvsvSggiejXBF8oM5W85JHpi7jfx
 Sep 19, 2026
ZSK RSA/SHA-256
showAwEAAaghoH5zEKaqjRPuCY7+/gcSKUCLGU/m3CHMy9HEnvlkvpnujiGPtyeMU7C/g2l7g7hDWN68Y3Wh5wvllQiKsCNqv+XX4MYlYZWiBuQjC8/wLA0b1bQe5oih4LSbKAUwCR9Pihk3P0r8RSxzP0NisnJDVAT+Jh1dp/LWooT85zsX
 Aug 10, 2026
SignsKey TagSignerExpires
SOA 22206 citadel Nov 28, 2026
DNSKEY 19304 citadel Nov 24, 2026
21 retired DNSKEYs no longer published.