cu-gtrc.org - robtex.com

cu-gtrc.org

DNSSEC⚠️ Not signed
A2a0b:1640:1:1:1:1:ce7:cfcc🇧🇬 Publicloud2a0b:1640:1::/48 PubliCloud
PTR5.http-proxy2.cloudns.net
A2a0b:1640:1:1:1008:1:1:1🇧🇬 Publicloud2a0b:1640:1::/48 PubliCloud
A185.206.180.121🇩🇪 Publicloud185.206.180.0/24 PubliCloud
A185.206.180.176🇩🇪 Publicloud185.206.180.0/24 PubliCloud
NSns1.ivin.nl ⭐
A2a06:fb00:1::1:111🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS
PTRpns1.cloudns.net
A185.136.96.111🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd
PTRpns1.cloudns.net
NSns2.ivin.nl
A2a06:fb00:1::2:111🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS
PTRpns2.cloudns.net
A185.136.97.111CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd
PTRpns2.cloudns.net
NSns3.ivin.nl
A2a06:fb00:1::3:111🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS
PTRpns3.cloudns.net
A185.136.98.111🇺🇸 CLOUDNSNET185.136.98.0/24 Cloud DNS Ltd
PTRpns3.cloudns.net
NSns4.ivin.nl
A2a06:fb00:1::4:111🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS
PTRpns4.cloudns.net
A185.136.99.111CLOUDNSNET185.136.99.0/24 Cloud DNS Ltd
PTRpns4.cloudns.net
SOAns1.ivin.nldomains@intervisors.net 2026-03-06 #1

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐
NSa2.org.afilias-nst.info
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1774646990

Same first word

cu-gtrc.org
cu-gtrc.co.uk
cu-gtrc.com
cu-gtrc.eu

DNS History

14 records (8 active, 6 former)

20162017201820192020202120222023202420252026NSns1.ivin.nlns2.ivin.nlns3.ivin.nlns4.ivin.nlns5.ivin.nlMXmail.cu-gtrc.orgA185.206.180.121185.206.180.1762a0b:1640:1:1:1:1:ce7:cfcc2a0b:1640:1:1:1008:1:1:1116.203.12.43213.198.89.1492a01:4f8:1c1c:8720::351.254.156.182
●NSns1.ivin.nl2015-08-09 → 2026-03-27 · 2 obs
● 2015-08-09 09:23:24
● 2026-03-27 21:47:22
●NSns2.ivin.nl2015-08-09 → 2026-03-27 · 2 obs
● 2015-08-09 09:23:24
● 2026-03-27 21:47:22
●NSns3.ivin.nl2015-08-09 → 2026-03-27 · 2 obs
● 2015-08-09 09:23:24
● 2026-03-27 21:47:22
●NSns4.ivin.nl2015-08-09 → 2026-03-27 · 2 obs
● 2015-08-09 09:23:24
● 2026-03-27 21:47:22
○NSns5.ivin.nl2015-08-09 → 2018-07-26 · 4 obs
● 2015-08-09 09:23:24
● 2018-07-26 11:05:44
○ 2026-02-16 03:19:40
○ 2026-03-27 21:47:22
○MXmail.cu-gtrc.org2015-08-09 → 2016-01-11 · 4 obs
● 2015-08-09 09:23:24
● 2016-01-11 18:34:44
○ 2016-04-19 23:28:32
○ 2026-03-27 21:47:22
○A116.203.12.432026-02-16 → 2026-03-05 · 5 obs
○ 2018-07-26 11:05:44
● 2026-02-16 03:19:40
● 2026-03-05 20:07:28
○ 2026-03-07 05:56:12
○ 2026-03-27 21:47:22
●A185.206.180.1212026-02-16 → 2026-03-27 · 3 obs
○ 2018-07-26 11:05:44
● 2026-02-16 03:19:40
● 2026-03-27 21:47:22
●A185.206.180.1762026-03-07 → 2026-03-27 · 3 obs
○ 2026-03-05 20:07:28
● 2026-03-07 05:56:12
● 2026-03-27 21:47:22
○A213.198.89.1492015-08-09 → 2016-01-11 · 4 obs
● 2015-08-09 09:23:24
● 2016-01-11 18:34:44
○ 2016-04-19 23:28:32
○ 2026-03-27 21:47:22
○A2a01:4f8:1c1c:8720::32026-02-16 → 2026-03-05 · 5 obs
○ 2018-07-26 11:05:44
● 2026-02-16 03:19:40
● 2026-03-05 20:07:28
○ 2026-03-07 05:56:12
○ 2026-03-27 21:47:22
●A2a0b:1640:1:1:1:1:ce7:cfcc2026-02-16 → 2026-03-27 · 3 obs
○ 2018-07-26 11:05:44
● 2026-02-16 03:19:40
● 2026-03-27 21:47:22
●A2a0b:1640:1:1:1008:1:1:12026-03-07 → 2026-03-27 · 3 obs
○ 2026-03-05 20:07:28
● 2026-03-07 05:56:12
● 2026-03-27 21:47:22
○A51.254.156.1822016-04-19 → 2018-07-26 · 5 obs
○ 2016-01-11 18:34:44
● 2016-04-19 23:28:32
● 2018-07-26 11:05:44
○ 2026-02-16 03:19:40
○ 2026-03-27 21:47:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
cu-gtrc.orgns2.ivin.nl, ns4.ivin.nl, ns3.ivin.nl, ns1.ivin.nl-

✅ Authoritative Response

Server:185.136.97.111

NS records: ns2.ivin.nl, ns4.ivin.nl, ns3.ivin.nl, ns1.ivin.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cu-gtrc.org (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

TypeCountSample Data
A2185.206.180.121, 185.206.180.176
AAAA22a0b:1640:1:1:1008:1:1:1, 2a0b:1640:1:1:1:1:ce7:cfcc
NS4ns3.ivin.nl, ns1.ivin.nl...
SOA1ns1.ivin.nl domains.intervisors.net

Analysis

IP Addresses

cu-gtrc.org points to four IP numbers: 2a0b:1640:1:1:1:1:ce7:cfcc, 2a0b:1640:1:1:1008:1:1:1, 185.206.180.121 and 185.206.180.176.

Other host names, for instance itecoredmine.cloudns.org, www.yeabests.cc, ns8.beatipacifici.org, ondernemersnet.be and saintsal.com share IP numbers with cu-gtrc.org.

Name Servers

cu-gtrc.org is delegated to four name servers: ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl and ns4.ivin.nl.

cu-gtrc.org at least partially shares name servers with other domains, for instance sterrencollegehaarlem.nl, literatuureducatie.nl, montessori-aerdenhout.nl, antheos.amsterdam and zodiacrescueboats.nl.

Host names with two IP numbers:

ns1.ivin.nl points to: 2a06:fb00:1::1:111 and 185.136.96.111.

ns2.ivin.nl points to: 2a06:fb00:1::2:111 and 185.136.97.111.

ns3.ivin.nl points to: 2a06:fb00:1::3:111 and 185.136.98.111.

ns4.ivin.nl points to: 2a06:fb00:1::4:111 and 185.136.99.111.