DNS Coffee ☕
Zone

arpa active

First Seen before tracking · First Import Oct 28, 2013 · Last Import Nov 07, 2026 · Type infrastructure · Operator Internet Architecture Board (IAB) · DNSSEC Signed since before Sep 05, 2019

Also indexed as: Domain

13
Domains
4,727
Zone Imports
12
Current Nameservers
12
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 12
Name First Seen Domains
b.ns.arpa May 03, 2022 1
d.ns.arpa May 03, 2022 1
i.ns.arpa May 03, 2022 1
m.ns.arpa May 03, 2022 1
k.ns.arpa May 03, 2022 1
l.ns.arpa May 03, 2022 1
f.ns.arpa May 03, 2022 1
h.ns.arpa May 03, 2022 1
g.ns.arpa May 03, 2022 1
a.ns.arpa Apr 26, 2022 1
c.ns.arpa Apr 26, 2022 1
e.ns.arpa Apr 26, 2022 1
Past Nameservers 12
Name First Seen Last Seen Domains
h.root-servers.net Before Apr 11, 2011 May 02, 2022 3
g.root-servers.net Before Apr 11, 2011 May 02, 2022 5
f.root-servers.net Before Apr 11, 2011 May 02, 2022 2
b.root-servers.net Before Apr 11, 2011 May 02, 2022 14
k.root-servers.net Before Apr 11, 2011 May 02, 2022 3
l.root-servers.net Before Apr 11, 2011 May 02, 2022 2
m.root-servers.net Before Apr 11, 2011 May 02, 2022 2
i.root-servers.net Before Apr 11, 2011 May 02, 2022 2
d.root-servers.net Before Apr 11, 2011 May 02, 2022 2
a.root-servers.net Before Apr 11, 2011 Apr 25, 2022 28
c.root-servers.net Before Apr 11, 2011 Apr 25, 2022 2
e.root-servers.net Before Apr 11, 2011 Apr 25, 2022 4
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 13 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 2,621 serials
Primary NSa.root-servers.net
Mailboxnstld.verisign-grs.com.
Serial2026110700
Refresh30 minutes
Retry15 minutes
Expire7 days
Minimum TTL1 day
Show 10 recent serial changes
SerialFirst SeenLast Seen
2026110600 Nov 06, 2026 Nov 06, 2026
2026110500 Nov 05, 2026 Nov 05, 2026
2026110400 Nov 04, 2026 Nov 04, 2026
2026110300 Nov 03, 2026 Nov 03, 2026
2026110200 Nov 02, 2026 Nov 02, 2026
2026110100 Nov 01, 2026 Nov 01, 2026
2026103001 Oct 31, 2026 Oct 31, 2026
2026103000 Oct 30, 2026 Oct 30, 2026
2026102900 Oct 29, 2026 Oct 29, 2026
2026102701 Oct 28, 2026 Oct 28, 2026
DNSSEC signed

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

Signed domains: 9 · DS records: 24 (as of Nov 07, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAaTeX8QjGPfu932a6OfQGYeeIdyXdLGLbvQD4LdNmEqJLL98kdOWB3bE97Wdh3FzI87OOqAVCITqWxqAM+phyZ6DsBzHpLDdqvFXkvv99n042rU1DROyIuHdZe/0qjR56PboiSEM6I7cPJWGJxlnR+JZVWXWJ3lK38teTaVrNm2Te/WPU2ntHY160etwVlxms4xbXa7WBbWXEq1q/9y18A56N/yz2dKkVLh9fmMU/frslsnn5BDYlkg4Xo0V+cw2Qw46mYV4g03ueCiDJAenUfV4iU9ud2h0Dq6Rhz7GMuTojDu3hdUz4DskR66yCetWRyofLCwVtZShGYqqLbiDTJc=
 before Sep 05, 2019
ZSK RSA/SHA-256
showAwEAAbRqK0RFehTnaRBP0NaiLBb6KODzMPDSBnPDnekrUmry0k5RwYFWIeYMHWX+ew2eqiC1HVmm7hgMbUwPfmIm0cMOiGJ+2e6uQlluUj5JGOEZRm64HPbCUNn+zNY2E7PsZ77N8DgwilnJA5BkwIzKTir+2rToAVDZP75PRSaBjvx2rC14ksbe7ViVx7er/5w8ynl40D0ciBv40Xdk8Yzvhnagq5YmBsjPxWwiSxGP2kb4dxFGny2YLMWRsoKDOu6HUVjBcAyThsBgtcMTAvl4Ea/coepnwdbxOi+HtpwE3zT2R7347ohaiQ3OX6kHi/D9dmCuHVa/v2k7t0ngjeDCiI0=
 Sep 20, 2026
SignsKey TagSignerExpires
DNSKEY 42581 arpa Nov 21, 2026
SOA 14568 arpa Nov 20, 2026
29 retired DNSKEYs no longer published.