cu4.gr - dns.ninja

cu4.gr

DNSSEC⚠️ Not signed
A2a01:4f8:222:1204::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRw07.happyservers.net
A88.198.3.21🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
NSw07ns1.happyservers.net ⭐
A2a01:4f8:222:1204::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRw07.happyservers.net
A88.198.3.21🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
PTRw07.happyservers.net
NSw07ns2.happyservers.net
A2a01:4f8:222:1204::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRw07.happyservers.net
A88.198.3.21🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
PTRw07.happyservers.net
MXmail.cu4.gr ⭐
A2a01:4f8:222:1204::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRw07.happyservers.net
A88.198.3.21🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
PTRw07.happyservers.net
TXTv=DMARC1; p=none
TXTv=spf1 +a +mx ip6:2a01:4f8:222:1204::2 include:_spf.happybyte.gr -all
SOAw07ns1.happyservers.netsv1hez@gmail.com 2026-06-25 #4

gr

DNSSEC🔒 Signed (DS record present)
NSgrdns.ics.forth.gr ⭐
NSestia.ics.forth.gr
NSgr-at.ics.forth.gr
NSgr-c.ics.forth.gr
NSgr-d.ics.forth.gr
NSgr-m.ics.forth.gr
SOAgrdns.ics.forth.grhmaster-info@ics.forth.gr serial=2607050091

Subdomains

mail.cu4.gr

Same first word

cu4.de
cu4.com
cu4.cn
cu4.eu
cu4.ru
cu4.co.uk
cu4.nl
cu4.net
cu4.online
cu4.gr

Similar names

u4c.ir
c4u.eu
c4u.nl
c4u.mobi
4cu.cn
4cu.com
4uc.ch
4uc.com
uc4.ro
4uc.org
4cu.ru
c4u.to
c4u.jp
c4u.hu
u4c.com
4uc.ru
c4u.company
4uc.ph
c4u.be
4uc.net
uc4.com
uc4.co.uk
4uc.eu
c4u.biz
c4u.vn
u4c.eu
c4u.ch
u4c.org
uc4.com.au
c4u.org
c4u.ie
4cu.org
c4u.info
c4u.us
uc4.nl
c4u.me
c4u.net
c4u.es
4uc.xyz
4uc.cz
c4u.ru
c4u.cc
c4u.ink
c4u.international
c4u.cz
u4c.de
uc4.org
uc4.cc
uc4.de
c4u.no
c4u.at
c4u.fr
c4u.de
c4u.cl
uc4.biz
c4u.se
uc4.net
u4c.ru
c4u.in
4cu.be
c4u.mx
c4u.top
4cu.net
c4u.co
uc4.cn
c4u.co.at
c4u.com
4uc.cc
c4u.it
uc4.info

DNS History

12 records (5 active, 7 former)

20162017201820192020202120222023202420252026NSw07ns1.happyservers.netw07ns2.happyservers.netns1.webforward.grns1301.happybyte.grns1302.happybyte.grns2.webforward.grMXmail.cu4.grA2a01:4f8:222:1204::288.198.3.21136.243.9.216176.9.106.372a01:4f8:151:532e::2
○NSns1.webforward.gr2015-08-10 → 2016-04-03 · 4 obs
● 2015-08-10 22:13:46
● 2016-04-03 00:50:40
○ 2026-04-06 15:48:10
○ 2026-07-05 04:59:26
○NSns1301.happybyte.gr2026-04-06 → 2026-04-06 · 4 obs
○ 2016-04-03 00:50:40
● 2026-04-06 15:48:10
○ 2026-06-25 13:20:58
○ 2026-07-05 04:59:26
○NSns1302.happybyte.gr2026-04-06 → 2026-04-06 · 4 obs
○ 2016-04-03 00:50:40
● 2026-04-06 15:48:10
○ 2026-06-25 13:20:58
○ 2026-07-05 04:59:26
○NSns2.webforward.gr2015-08-10 → 2016-04-03 · 4 obs
● 2015-08-10 22:13:46
● 2016-04-03 00:50:40
○ 2026-04-06 15:48:10
○ 2026-07-05 04:59:26
●NSw07ns1.happyservers.net2026-06-25 → 2026-07-05 · 3 obs
○ 2026-04-06 15:48:10
● 2026-06-25 13:20:58
● 2026-07-05 04:59:26
●NSw07ns2.happyservers.net2026-06-25 → 2026-07-05 · 3 obs
○ 2026-04-06 15:48:10
● 2026-06-25 13:20:58
● 2026-07-05 04:59:26
●MXmail.cu4.gr2026-04-06 → 2026-07-05 · 2 obs
● 2026-04-06 15:48:10
● 2026-07-05 04:59:26
○A136.243.9.2162015-08-10 → 2016-04-03 · 4 obs
● 2015-08-10 22:13:46
● 2016-04-03 00:50:40
○ 2026-04-06 15:48:10
○ 2026-07-05 04:59:26
○A176.9.106.372026-04-06 → 2026-04-06 · 4 obs
○ 2016-04-03 00:50:40
● 2026-04-06 15:48:10
○ 2026-06-25 13:20:58
○ 2026-07-05 04:59:26
○A2a01:4f8:151:532e::22026-04-06 → 2026-04-06 · 4 obs
○ 2016-04-03 00:50:40
● 2026-04-06 15:48:10
○ 2026-06-25 13:20:58
○ 2026-07-05 04:59:26
●A2a01:4f8:222:1204::22026-06-25 → 2026-07-05 · 3 obs
○ 2026-04-06 15:48:10
● 2026-06-25 13:20:58
● 2026-07-05 04:59:26
●A88.198.3.212026-06-25 → 2026-07-05 · 3 obs
○ 2026-04-06 15:48:10
● 2026-06-25 13:20:58
● 2026-07-05 04:59:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
grgr-c.ics.forth.gr, gr-d.ics.forth.gr, gr-m.ics.forth.gr, estia.ics.forth.gr...10 records
cu4.grw07ns2.happyservers.net, w07ns1.happyservers.net-

✅ Authoritative Response

Server:88.198.3.21

NS records: w07ns2.happyservers.net, w07ns1.happyservers.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cu4.gr (unsigned zone)

⏱️ Timing

Total: 2310ms | Queries: -

📄 Records

TypeCountSample Data
A188.198.3.21
AAAA12a01:4f8:222:1204::2
NS2w07ns1.happyservers.net, w07ns2.happyservers.net
MX1mail.cu4.gr (pri: 10)
TXT2v=DMARC1; p=none, v=spf1 +a +mx ip6:2a01:4f8:222:1204::2 i
SOA1w07ns1.happyservers.net sv1hez.gmail.com

📌 Glue Records Collected

Total: 10

In-bailiwick: 10 (gr-c.ics.forth.gr, gr-d.ics.forth.gr, gr-m.ics.forth.gr...)

Analysis

Hierarchy

cu4.gr serves as the parent of mail.cu4.gr.

IP Addresses

cu4.gr directs to two IP numbers, 88.198.3.21 and 2a01:4f8:222:1204::2

Two other host names, along with w07ns2.happyservers.net, ronate.com and mail.centauros.gr, also share IP numbers with cu4.gr.

Name Servers

Two name servers handle the delegation for cu4.gr: w07ns1.happyservers.net and w07ns2.happyservers.net.

cu4.gr shares its NS records with other domains, for example startlife.gr, papadakistech.gr, kalavrytapress.gr and two others.

cu4.gr and other domains like villadora.gr, diatrofisimera.gr and efrosini.gr share some name servers

It is common to see these name servers used together with name servers w07ns1.happybyte.gr and w07ns2.happybyte.gr.

w07ns1.happyservers.net and w07ns2.happyservers.net each point to two IP numbers — 88.198.3.21 and 2a01:4f8:222:1204::2 — making both hosts identical in their DNS resolution.

w07ns1.happyservers.net along with w07ns2.happyservers.net each resolve to 2a01:4f8:222:1204::2 IP addresses.

w07ns1.happyservers.net along with w07ns2.happyservers.net each resolve to 88.198.3.21 IP addresses.

Mail Servers

The sole mail server for cu4.gr is mail.cu4.gr.

mail.cu4.gr has two IP addresses: 88.198.3.21 and 2a01:4f8:222:1204::2.