iwwe.cz - dns.ninja

iwwe.cz

DNSSEC⚠️ Not signed
A217.11.230.237🇨🇿 CASABLANCA-AS217.11.230.0/24 Casablanca INT
NSns1.tele3.cz ⭐
A2001:1528:123::d01🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRns1.tele3.cz
A81.0.217.111🇨🇿 CASABLANCA-AS81.0.217.0/24 Casablanca INT
NSns2.tele3.cz
A2001:4de8:fa71:7e1e::d02🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRns2.tele3.cz
A95.80.251.222🇨🇿 QUANTCOM-AS95.80.192.0/18 Dial Telecom, a.s.
PTRns2.tele3.cz
NSns3.tele3.eu
A2a01:4f8:162:24c1::d03🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns3.tele3.eu
A5.9.97.250🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5
PTRns3.tele3.eu
MXmail.dc3.cz ⭐
A81.0.217.5🇨🇿 CASABLANCA-AS81.0.217.0/24 Casablanca INT
SOAns1.tele3.czroot@tele3.cz serial=1763018915

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1786040239

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DNS History

17 records (5 active, 12 former)

20162017201820192020202120222023202420252026NSns1.tele3.czns2.tele3.czns3.tele3.euns.forpsi.czns.forpsi.netns4.tele3.usMXmail.dc3.czblackcat.tele3.czmail1.viamedia.czmx2.viamedia.czmx3.viamedia.czmx4.viamedia.czmx5.viamedia.czA217.11.230.237217.16.185.112a00:1ed0:1:e00:abcd:abcd:abcd:123479.170.251.37
○NSns.forpsi.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
○NSns.forpsi.net2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
●NSns1.tele3.cz2021-06-20 → 2026-08-06 · 3 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
● 2026-08-06 18:32:50
●NSns2.tele3.cz2021-06-20 → 2026-08-06 · 3 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
● 2026-08-06 18:32:50
●NSns3.tele3.eu2021-06-20 → 2026-08-06 · 3 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
● 2026-08-06 18:32:50
○NSns4.tele3.us2021-06-20 → 2021-06-20 · 4 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
○ 2026-02-25 06:10:16
○ 2026-08-06 18:32:50
○MXblackcat.tele3.cz2021-06-20 → 2021-06-20 · 4 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
○ 2026-02-25 06:10:16
○ 2026-08-06 18:32:50
●MXmail.dc3.cz2021-06-20 → 2026-08-06 · 3 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
● 2026-08-06 18:32:50
○MXmail1.viamedia.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
○MXmx2.viamedia.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
○MXmx3.viamedia.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
○MXmx4.viamedia.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
○MXmx5.viamedia.cz2015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50
●A217.11.230.2372026-02-25 → 2026-08-06 · 3 obs
○ 2021-06-20 12:41:02
● 2026-02-25 06:10:16
● 2026-08-06 18:32:50
○A217.16.185.112021-06-20 → 2021-06-20 · 4 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
○ 2026-02-25 06:10:16
○ 2026-08-06 18:32:50
○A2a00:1ed0:1:e00:abcd:abcd:abcd:12342021-06-20 → 2021-06-20 · 4 obs
○ 2016-07-09 15:41:00
● 2021-06-20 12:41:02
○ 2026-02-25 06:10:16
○ 2026-08-06 18:32:50
○A79.170.251.372015-08-03 → 2016-07-09 · 4 obs
● 2015-08-03 09:22:14
● 2016-07-09 15:41:00
○ 2021-06-20 12:41:02
○ 2026-08-06 18:32:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz8 records
iwwe.czns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu4 records

✅ Authoritative Response

Server:95.80.251.222

NS records: ns1.tele3.cz, ns2.tele3.cz, ns3.tele3.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iwwe.cz (unsigned zone)

⏱️ Timing

Total: 1188ms | Queries: -

📄 Records

TypeCountSample Data
A1217.11.230.237
NS3ns3.tele3.eu, ns2.tele3.cz...
MX1mail.dc3.cz (pri: 10)
SOA1ns1.tele3.cz root.tele3.cz

📌 Glue Records Collected

Total: 12

In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)

Out-of-bailiwick: 4 (ns1.tele3.cz, ns1.tele3.cz, ns2.tele3.cz...)

Analysis

IP Addresses

iwwe.cz directs to one IP number, which is 217.11.230.237.

Among the host names that share IP numbers with iwwe.cz are elsve.cz, a-truck.cz, pujcky-bez-potvrzeni-o-prijmu-ihned.cz and two others.

Name Servers

iwwe.cz is delegated to three name servers: ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu.

iwwe.cz partially shares its NS delegation with several other domains, including e-academy.cz, continentaltravel.org, rychlapujckaonline.cz and two others.

ns1.tele3.cz, ns2.tele3.cz and ns3.tele3.eu each resolve to two IP addresses: ns1.tele3.cz resolves to 81.0.217.111 and 2001:1528:123::d01; ns2.tele3.cz resolves to 95.80.251.222 and 2001:4de8:fa71:7e1e::d02; ns3.tele3.eu resolves to 5.9.97.250 and 2a01:4f8:162:24c1::d03.

Mail Servers

iwwe.cz routes its mail through a single mail server, mail.dc3.cz.

iwwe.cz has the same mail server arrangement as a number of other domains, for example agia.cz, bbbc.cz, jenta.cz and two more.

iwwe.cz shares mail servers with at least some other domains, such as 066.cz, mailgate.cz and sterilizers-bmt.com.

It is common to find these mail servers paired with the mail servers blackcat.tele3.cz.

mail.dc3.cz resolves to a single IP number: 81.0.217.5.