trew.cz - robtex.com

trew.cz

DNSSEC⚠️ Not signed
A2001:67c:e94:1:1:5bef:c9af:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRreplikant1015.thinline.cz
A91.239.201.175🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot
NSns1.thinline.cz ⭐
A2001:67c:e94:0:1:5bef:c8f3:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRns1.thinline.cz
A91.239.200.243🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot
PTRns1.thinline.cz
NSns2.thinline.cz
A2001:4de8:fa22:0:1:5264:602:1🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRns2.thinline.cz
A82.100.6.2🇨🇿 QUANTCOM-AS82.100.0.0/18 Dial Telecom, a.s.
PTRns2.thinline.cz
NSns3.cesky-hosting.eu
A2001:67c:e94:1:1:5bef:ca12:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRns3.cesky-hosting.eu
A91.239.202.18🇨🇿 Blindspot91.239.202.0/23 THINLINE-BlindSpot
PTRns3.cesky-hosting.eu
MXmx1d10.thinline.cz ⭐
A2001:67c:e94:0:1:5bef:c80e:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRmx1d10.thinline.cz
A91.239.200.14🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot
PTRmx1d10.thinline.cz
MXmx1b20.thinline.cz(20)
A2001:4de8:fa22:0:1:5264:603:1🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRmx1b20.thinline.cz
A82.100.6.3🇨🇿 QUANTCOM-AS82.100.0.0/18 Dial Telecom, a.s.
PTRmx1b20.thinline.cz
SOAns1.thinline.czhostmaster@trew.cz serial=20243720

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=1784996243

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DNS History

17 records (7 active, 10 former)

20162017201820192020202120222023202420252026NSns1.thinline.czns2.thinline.czns3.cesky-hosting.euns.wedos.comns.wedos.czns.wedos.euns.wedos.netMXmx1b20.thinline.czmx1d10.thinline.czwes1-mx1.wedos.netwes1-mx2.wedos.netA2001:67c:e94:1:1:5bef:c9af:191.239.201.1752a02:2b88:1:4::162a02:2b88:1:4::3646.28.105.246.28.105.84
○NSns.wedos.com2015-08-07 → 2017-07-02 · 4 obs
● 2015-08-07 05:37:52
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
○NSns.wedos.cz2015-08-07 → 2017-07-02 · 4 obs
● 2015-08-07 05:37:52
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
○NSns.wedos.eu2015-08-07 → 2017-07-02 · 4 obs
● 2015-08-07 05:37:52
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
○NSns.wedos.net2015-08-07 → 2017-07-02 · 4 obs
● 2015-08-07 05:37:52
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
●NSns1.thinline.cz2026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
●NSns2.thinline.cz2026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
●NSns3.cesky-hosting.eu2026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
●MXmx1b20.thinline.cz2026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
●MXmx1d10.thinline.cz2026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
○MXwes1-mx1.wedos.net2015-12-14 → 2017-07-02 · 4 obs
● 2015-12-14 23:00:16
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
○MXwes1-mx2.wedos.net2015-12-14 → 2017-07-02 · 4 obs
● 2015-12-14 23:00:16
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
●A2001:67c:e94:1:1:5bef:c9af:12026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36
○A2a02:2b88:1:4::162015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 05:37:52
○ 2015-12-14 23:00:16
○ 2026-07-25 17:07:36
○A2a02:2b88:1:4::362015-12-14 → 2017-07-02 · 5 obs
○ 2015-08-07 05:37:52
● 2015-12-14 23:00:16
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
○A46.28.105.22015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 05:37:52
○ 2015-12-14 23:00:16
○ 2026-07-25 17:07:36
○A46.28.105.842015-12-14 → 2017-07-02 · 5 obs
○ 2015-08-07 05:37:52
● 2015-12-14 23:00:16
● 2017-07-02 04:14:22
○ 2026-06-14 15:00:42
○ 2026-07-25 17:07:36
●A91.239.201.1752026-06-14 → 2026-07-25 · 3 obs
○ 2017-07-02 04:14:22
● 2026-06-14 15:00:42
● 2026-07-25 17:07:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
trew.czns3.cesky-hosting.eu, ns2.thinline.cz, ns1.thinline.cz4 records

✅ Authoritative Response

Server:91.239.202.18

NS records: ns3.cesky-hosting.eu, ns2.thinline.cz, ns1.thinline.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for trew.cz (unsigned zone)

⏱️ Timing

Total: 1458ms | Queries: -

📄 Records

TypeCountSample Data
A191.239.201.175
AAAA12001:67c:e94:1:1:5bef:c9af:1
NS3ns1.thinline.cz, ns2.thinline.cz...
MX2mx1d10.thinline.cz (pri: 10), mx1b20.thinline.cz (pri: 20)
SOA1ns1.thinline.cz hostmaster.trew.cz

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

trew.cz has two IP addresses: 91.239.201.175 and 2001:67c:e94:1:1:5bef:c9af:1

Among the host names that share IP numbers with trew.cz are replikant1015.thinline.cz, innera.cz, vas.cz and two others.

Name Servers

The authoritative name servers for trew.cz are ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu — three in total.

There is at least partial name server overlap between trew.cz and other domains — obtisky.eu, w201.cz, elnote.sk and two more among them.

ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu all resolve to exactly two IP numbers apiece: ns1.thinline.cz → 91.239.200.243 and 2001:67c:e94:0:1:5bef:c8f3:1; ns2.thinline.cz → 82.100.6.2 and 2001:4de8:fa22:0:1:5264:602:1; ns3.cesky-hosting.eu → 91.239.202.18 and 2001:67c:e94:1:1:5bef:ca12:1.

Mail Servers

The MX records for trew.cz point to two mail servers: mx1b20.thinline.cz and mx1d10.thinline.cz.

trew.cz has the same mail server arrangement as a number of other domains, for example cfp.cz, vysoke-skoly.cz, tranovice.org and two more.

Some mail servers of trew.cz are also used by other domains, notably actirun.cz and eventaro.com.

The two host names mx1b20.thinline.cz and mx1d10.thinline.cz each have a pair of IP addresses: mx1b20.thinline.cz has 82.100.6.3 and 2001:4de8:fa22:0:1:5264:603:1, and mx1d10.thinline.cz has 91.239.200.14 and 2001:67c:e94:0:1:5bef:c80e:1.