DNS Coffee ☕
Zone

tz active

First Seen before tracking · First Import Jun 21, 2022 · Last Import May 14, 2025 · Type country-code · Operator Tanzania Communications Regulatory Authority · DNSSEC Signed since before Jun 21, 2022

Also indexed as: Domain

1,980
Domains
1,043
Zone Imports
5
Current Nameservers
5
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 5
Name First Seen Domains
tz-e.ns.nic.cz Aug 26, 2022 13
fork.sth.dnsnode.net May 18, 2013 33
ns.anycast.co.tz Jul 19, 2011 14
rip.psg.com Before Apr 11, 2011 134
ns2.tznic.or.tz Before Apr 11, 2011 18
Past Nameservers 5
Name First Seen Last Seen Domains
ns-tz.afrinic.net Jul 19, 2011 Jul 27, 2023 0
d.ext.nic.cz Before Apr 11, 2011 Aug 25, 2022 9
sns-pb.isc.org Before Apr 11, 2011 Feb 03, 2020 10
sunic.sunet.se Before Apr 11, 2011 Mar 30, 2012 512
ns2.afrinic.net Before Apr 11, 2011 May 10, 2011 21
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 1,980 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 1,032 serials
Primary NSns2.tznic.or.tz
Mailboxrajisi.tcra.go.tz.
Serial1747207810
Refresh4 hours
Retry1 hour
Expire14 days
Minimum TTL2 hours
Show 10 recent serial changes
SerialFirst SeenLast Seen
1747121411 May 13, 2025 May 13, 2025
1747035008 May 12, 2025 May 12, 2025
1746948609 May 11, 2025 May 11, 2025
1746862210 May 10, 2025 May 10, 2025
1746775809 May 09, 2025 May 09, 2025
1746689410 May 08, 2025 May 08, 2025
1746603007 May 07, 2025 May 07, 2025
1746516613 May 06, 2025 May 06, 2025
1746430209 May 05, 2025 May 05, 2025
1746343809 May 04, 2025 May 04, 2025
Records Browse all

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

CDS 1 CDNSKEY 1 TYPE65534 1
DNSSEC signed

Signed since before Jun 21, 2022.

Signed domains: 23 · DS records: 27 (as of Aug 06, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK ECDSA P-256/SHA-256
showjODuzjdndSn5n8Bu7bDjBisC8q+YuCa7Lvfd4/iOHlv9oLjj5orSbdT9bdu1iq4cPjPMwekLqNAYil99GNh6aw==
 before Jun 21, 2022
ZSK ECDSA P-256/SHA-256
showQ1mSTdQFjBl4p0/DT59q/QOKVcyTamWyCLT4NhPE7LGvpnNw7VDLDZ3RD2/Fm///lLLvaHe2saL5lFAX1XNieQ==
 Apr 21, 2025
SignsKey TagSignerExpires
SOA 36367 tz May 28, 2025
DNSKEY 30234 tz May 22, 2025
Signature incidents (1)

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

StartEndDays
May 23, 2025 ongoing 440
7 retired DNSKEYs no longer published.