DNS Coffee ☕
Zone

citadel active

First Seen Jul 24, 2016 · First Import Sep 01, 2016 · Last Import Sep 21, 2026 · Type generic · Operator Citadel Domain LLC · DNSSEC Signed since Apr 10, 2020

Also indexed as: Domain Nameserver

2
Domains
3,653
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 1,756 serials
Primary NSa0.nic.citadel
Mailboxhostmaster.donuts.email.
Serial1789952135
Refresh2 hours
Retry15 minutes
Expire14 days
Minimum TTL1 hour
Show 10 recent serial changes
SerialFirst SeenLast Seen
1789865880 Sep 20, 2026 Sep 20, 2026
1789779634 Sep 19, 2026 Sep 19, 2026
1789693368 Sep 18, 2026 Sep 18, 2026
1789607069 Sep 17, 2026 Sep 17, 2026
1789535930 Sep 16, 2026 Sep 16, 2026
1789434314 Sep 15, 2026 Sep 15, 2026
1789347456 Sep 14, 2026 Sep 14, 2026
1789261228 Sep 13, 2026 Sep 13, 2026
1789175002 Sep 12, 2026 Sep 12, 2026
1789088835 Sep 11, 2026 Sep 11, 2026
DNSSEC signed

Signed since Apr 10, 2020.

Signed domains: 1 · DS records: 1 (as of Sep 21, 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
showAwEAAZXIT1GCxIh/vbHRmJ9EQoMzp4qcWWIVVG3HTG++kgRPTrEaRAxwkLfVGFZte5fUVhWejCWTZiKlP+E5mF5dkrmex7qvx/WMtupnxsUu3Ld1Ope7SvPsS+jzreYJ/lEshKbcNvVZUUIjUT3dwv7SOY6vwYyD7G3m9suMmoY6qBvP
 Sep 10, 2026
ZSK RSA/SHA-256
showAwEAAaghoH5zEKaqjRPuCY7+/gcSKUCLGU/m3CHMy9HEnvlkvpnujiGPtyeMU7C/g2l7g7hDWN68Y3Wh5wvllQiKsCNqv+XX4MYlYZWiBuQjC8/wLA0b1bQe5oih4LSbKAUwCR9Pihk3P0r8RSxzP0NisnJDVAT+Jh1dp/LWooT85zsX
 Aug 10, 2026
SignsKey TagSignerExpires
SOA 58638 citadel Oct 12, 2026
DNSKEY 43942 citadel Oct 09, 2026
20 retired DNSKEYs no longer published.