netdeveloper.cz - robtex.com

netdeveloper.cz

DNSSEC🔒 Signed (DS record present)
A2001:67c:e94:1:1:5bef:c911:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRrproxy6.thinline.cz
A91.239.201.17🇨🇿 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
MX219c0485baee10a6.mx2.emailprofi.seznam.cz ⭐
A2a02:598:2::1146🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx2.emailprofi.seznam.cz
A77.75.77.146🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx2.emailprofi.seznam.cz
MX219c0485baee10a6.mx1.emailprofi.seznam.cz(20)
A2a02:598:2::1056🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx1.emailprofi.seznam.cz
A77.75.77.56🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx1.emailprofi.seznam.cz
TXTv=spf1 include:spf.seznam.cz ~all
SOAns1.thinline.czhostmaster@netdeveloper.cz serial=20194151

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=1778357836

Same first word

netdeveloper.be
netdeveloper.cz

Similar names

developernet.com

DNS History

23 records (7 active, 16 former)

20162017201820192020202120222023202420252026NSns1.thinline.czns2.thinline.czns3.cesky-hosting.euns.forpsi.czns.forpsi.itns.forpsi.netns.wedos.comns.wedos.czns.wedos.euns.wedos.netMX219c0485baee10a6.mx1.emailprofi.seznam.cz219c0485baee10a6.mx2.emailprofi.seznam.czalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA2001:67c:e94:1:1:5bef:c911:191.239.201.1737.157.192.6386.49.191.165
○NSns.forpsi.cz2015-06-20 → 2017-01-18 · 4 obs
● 2015-06-20 15:56:46
● 2017-01-18 14:45:40
○ 2019-03-25 00:55:44
○ 2026-05-09 20:37:32
○NSns.forpsi.it2015-06-20 → 2017-01-18 · 4 obs
● 2015-06-20 15:56:46
● 2017-01-18 14:45:40
○ 2019-03-25 00:55:44
○ 2026-05-09 20:37:32
○NSns.forpsi.net2015-06-20 → 2017-01-18 · 4 obs
● 2015-06-20 15:56:46
● 2017-01-18 14:45:40
○ 2019-03-25 00:55:44
○ 2026-05-09 20:37:32
○NSns.wedos.com2019-03-25 → 2019-03-25 · 4 obs
○ 2017-01-18 14:45:40
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○NSns.wedos.cz2019-03-25 → 2019-03-25 · 4 obs
○ 2017-01-18 14:45:40
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○NSns.wedos.eu2019-03-25 → 2019-03-25 · 4 obs
○ 2017-01-18 14:45:40
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○NSns.wedos.net2019-03-25 → 2019-03-25 · 4 obs
○ 2017-01-18 14:45:40
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
●NSns1.thinline.cz2026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
●NSns2.thinline.cz2026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
●NSns3.cesky-hosting.eu2026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
●MX219c0485baee10a6.mx1.emailprofi.seznam.cz2026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
●MX219c0485baee10a6.mx2.emailprofi.seznam.cz2026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
○MXalt1.aspmx.l.google.com2015-06-20 → 2019-03-25 · 4 obs
● 2015-06-20 15:56:46
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○MXalt2.aspmx.l.google.com2015-06-20 → 2019-03-25 · 4 obs
● 2015-06-20 15:56:46
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○MXaspmx.l.google.com2015-06-20 → 2019-03-25 · 4 obs
● 2015-06-20 15:56:46
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○MXaspmx2.googlemail.com2015-06-20 → 2019-03-25 · 4 obs
● 2015-06-20 15:56:46
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○MXaspmx3.googlemail.com2015-06-20 → 2019-03-25 · 4 obs
● 2015-06-20 15:56:46
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○MXaspmx4.googlemail.com2015-06-20 → 2017-01-18 · 4 obs
● 2015-06-20 15:56:46
● 2017-01-18 14:45:40
○ 2019-03-25 00:55:44
○ 2026-05-09 20:37:32
○MXaspmx5.googlemail.com2015-06-20 → 2017-01-18 · 4 obs
● 2015-06-20 15:56:46
● 2017-01-18 14:45:40
○ 2019-03-25 00:55:44
○ 2026-05-09 20:37:32
●A2001:67c:e94:1:1:5bef:c911:12026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32
○A37.157.192.632015-06-20 → 2019-03-25 · 7 obs
● 2015-06-20 15:56:46
● 2015-11-05 22:52:00
○ 2016-01-28 08:17:16
● 2016-05-09 00:17:28
● 2019-03-25 00:55:44
○ 2026-02-21 22:02:40
○ 2026-05-09 20:37:32
○A86.49.191.1652016-01-28 → 2016-01-28 · 4 obs
○ 2015-11-05 22:52:00
● 2016-01-28 08:17:16
○ 2016-05-09 00:17:28
○ 2026-05-09 20:37:32
●A91.239.201.172026-02-21 → 2026-05-09 · 3 obs
○ 2019-03-25 00:55:44
● 2026-02-21 22:02:40
● 2026-05-09 20:37:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
netdeveloper.czns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu4 records

✅ Authoritative Response

Server:91.239.202.18

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1335ms | Queries: -

📄 Records

TypeCountSample Data
A191.239.201.17
AAAA12001:67c:e94:1:1:5bef:c911:1
NS3ns1.thinline.cz, ns2.thinline.cz...
MX2219c0485baee10a6.mx2.emailprofi.seznam.c, 219c0485baee10a6.mx1.emailprofi.seznam.c
TXT1v=spf1 include:spf.seznam.cz ~all
SOA1ns1.thinline.cz hostmaster.netdeveloper.

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

netdeveloper.cz resolves to two IP numbers: 2001:67c:e94:1:1:5bef:c911:1 and 91.239.201.17.

Other host names, for instance tests.cz, fcm.cz, dolfi.cz, replikant2008.thinline.cz and k15.cz share IP numbers with netdeveloper.cz.

Name Servers

netdeveloper.cz is delegated to three name servers: ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu.

netdeveloper.cz partially shares name servers with other domains; examples include krompasan.sk, tlakove-myti.cz, timeoutlet.cz, kaluza.cz and skopal.eu.

Host names with two IP numbers:

ns1.thinline.cz points to 2001:67c:e94:0:1:5bef:c8f3:1 and 91.239.200.243.

ns2.thinline.cz points to 2001:4de8:fa22:0:1:5264:602:1 and 82.100.6.2.

ns3.cesky-hosting.eu points to 2001:67c:e94:1:1:5bef:ca12:1 and 91.239.202.18.

Mail Servers

netdeveloper.cz is handled by two mail servers: 219c0485baee10a6.mx1.emailprofi.seznam.cz and 219c0485baee10a6.mx2.emailprofi.seznam.cz.

Host names with two IP numbers:

219c0485baee10a6.mx1.emailprofi.seznam.cz points to: 2a02:598:2::1056 and 77.75.77.56

219c0485baee10a6.mx2.emailprofi.seznam.cz points to: 2a02:598:2::1146 and 77.75.77.146