cu4.online - robtex.com

cu4.online

DNSSEC⚠️ Not signed
A54.215.31.113🇺🇸 Amazon54.215.0.0/17 EC2 SFO prefix
PTRec2-54-215-31-113.us-west-1.compute.amazonaws.com
NSns1.dyna-ns.net ⭐
A2400:cb00:2049:1::a29f:1a5c🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1b9e🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.26.92Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
A162.159.27.158Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
NSns2.dyna-ns.net
A2400:cb00:2049:1::a29f:1805🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1905🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.24.5Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
A162.159.25.5Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
SOAns1.dyna-ns.nethostmaster@cu4.online 2026-03-06 #2

online

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSns01.trs-dns.com
NSns01.trs-dns.net
NSns10.trs-dns.info
NSns10.trs-dns.org
SOAns0.centralnic.nethostmaster@centralnic.net serial=1419732

Subdomains

mail.cu4.online

Same first word

cu4.nl
cu4.net
cu4.online
cu4.org
cu4.gr
cu4.de
cu4.us
cu4.com
cu4.cn
cu4.eu
cu4.ru

Similar names

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
uc4.cn
c4u.com
4uc.cc
c4u.it
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
c4u.company
c4u.be
4uc.net
uc4.com
uc4.co.uk
4uc.eu
c4u.biz
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.cz
c4u.ru

DNS History

3 records (3 active, 0 former)

NSns1.dyna-ns.netns2.dyna-ns.netA54.215.31.113
●NSns1.dyna-ns.net2026-02-22 → 2026-03-15 · 2 obs
● 2026-02-22 23:36:54
● 2026-03-15 03:36:16
●NSns2.dyna-ns.net2026-02-22 → 2026-03-15 · 2 obs
● 2026-02-22 23:36:54
● 2026-03-15 03:36:16
●A54.215.31.1132026-02-22 → 2026-03-15 · 2 obs
● 2026-02-22 23:36:54
● 2026-03-15 03:36:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
onlinens01.trs-dns.com, ns10.trs-dns.org, ns01.trs-dns.net, ns10.trs-dns.info8 records
cu4.onlinens1.dyna-ns.net, ns2.dyna-ns.net-

✅ Authoritative Response

Server: 162.159.27.158

NS records: ns1.dyna-ns.net, ns2.dyna-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cu4.online (unsigned zone)

⏱️ Timing

Total: 1650ms | Queries: -

📄 Records

TypeCountSample Data
A154.215.31.113
NS2ns1.dyna-ns.net, ns2.dyna-ns.net
SOA1ns1.dyna-ns.net hostmaster.cu4.online

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)

Analysis

Hierarchy

cu4.online is a parent of mail.cu4.online.

IP Addresses

cu4.online points to a single IP number: 54.215.31.113.

Other host names, for instance coc.in, mpsg.com, artpediem.com, pricedhot.com and expertconsulting.net share IP numbers with cu4.online.

Name Servers

Delegation for cu4.online rests with two name servers, ns1.dyna-ns.net and ns2.dyna-ns.net.

cu4.online shares the same name server setup as other domains, including realtavirtuale.com, huntingretreat.com, gmd-bicycle.com, hotelakapana.com and 15maoaw.com.

Host names with four IP numbers:

ns1.dyna-ns.net points to 2400:cb00:2049:1::a29f:1a5c, 2400:cb00:2049:1::a29f:1b9e, 162.159.26.92 and 162.159.27.158

ns2.dyna-ns.net points to 2400:cb00:2049:1::a29f:1805, 2400:cb00:2049:1::a29f:1905, 162.159.24.5 and 162.159.25.5