c21.com.sg - robtex.com

c21.com.sg

DNSSEC⚠️ Not signed
A23.108.103.230🇸🇬 LEASEWEB-APAC-SIN-1123.108.100.0/22 LEASEWEB SINGAPORE PTE. LTD. 18B Keong Saik Road Singapore, 089125
PTRweb217f.gocloudeasy.com
NSns1.gocloudeasy.com ⭐ ⚠️ Not in parent delegation
A45.83.248.52🇧🇬 CLOUDNSNET45.83.248.0/24 Cloud DNS Ltd
PTRns1.gocloudeasy.com
NSns2.gocloudeasy.com ⚠️ Not in parent delegation
A45.83.249.52🇧🇬 CLOUDNSNET45.83.249.0/24 Cloud DNS Ltd
PTRns2.gocloudeasy.com
NSns3.gocloudeasy.com ⚠️ Not in parent delegation
A45.83.250.52🇧🇬 CLOUDNSNET45.83.250.0/24 Cloud DNS Ltd
PTRns3.gocloudeasy.com
NSnsa.pixelhost.sg ⚠️ Not in zone NS records
A54.255.9.46🇸🇬 Amazon54.255.0.0/17 SIN prefix
PTRns1.gocloudeasy.com
NSnsb.pixelhost.sg ⚠️ Not in zone NS records
A45.32.110.205🇸🇬 AS-VULTR45.32.96.0/19 Vultr Assigned Prefix
PTRns2.gocloudeasy.com
NSnsc.pixelhost.sg ⚠️ Not in zone NS records
A206.81.8.79🇺🇸 DIGITALOCEAN206.81.0.0/20 DigitalOcean
PTRns3.gocloudeasy.com
MXmail.c21.com.sg ⭐
A23.108.103.230🇸🇬 LEASEWEB-APAC-SIN-1123.108.100.0/22 LEASEWEB SINGAPORE PTE. LTD. 18B Keong Saik Road Singapore, 089125
PTRweb217f.gocloudeasy.com
TXTv=DMARC1;p=none;rua=mailto:postmaster@c21.com.sg
TXTv=spf1 ip4:209.58.181.154 ip4:23.108.103.230 include:_spf.gocloudeasy.com +a ...
TXTSendinblue-code:6d9b14045cefbc00d8fc7f83b8bab763
SOAns1.gocloudeasy.comhostmaster@gocloudeasy.com 2026-05-08 #3

com.sg

DNSSEC⚠️ Not signed
NSds.sgnic.sg ⭐
NSdsany2.sgnic.sg ⚠️ Not in parent delegation
NSdsany3.sgnic.sg ⚠️ Not in parent delegation
NSdsany4.sgnic.sg ⚠️ Not in parent delegation
NSpch.sgzones.sg ⚠️ Not in parent delegation
SOAds.sgnic.sgdna@sgnic.sg serial=2605132330

Subdomains

mail.c21.com.sg

Same first word

c21.com.bo
c21.info
c21.in
c21.tv
c21.ru
c21.biz
c21.one
c21.it
c21.com.hk
c21.asia
c21.si
c21.at
c21.ir
c21.online
c21.mx
c21.cn
c21.name
c21.pt
c21.ca
c21.gr
c21.sk
c21.eu
c21.hk
c21.fr
c21.us
c21.dk
c21.nl
c21.xyz
c21.net.cn
c21.com.tr
c21.ro
c21.ae
c21.tech
c21.homes
c21.al
c21.co
c21.hr
c21.com.br
c21.pe
c21.com.cy
c21.com.vn
c21.com.cn
c21.to
c21.site
c21.gy
c21.mn
c21.pl
c21.tw
c21.me
c21.be
c21.properties
c21.com.pe
c21.azureedge.net
c21.com
c21.com.sg
c21.cz
c21.bz
c21.net
c21.nyc
c21.guru
c21.vn

Similar names

21c.email
21c.co.uk
1c2.mobi
1c2.de
2c1.de
c12.com.au
c12.me
21c.co.in
12c.com
12c.me
c12.it
21c.or.kr
21c.nl
c12.in
21c.xin
c12.fr
c12.dk
2c1.fr
21c.cn
21c.me
21c.ru
1c2.me
21c.co.jp
1c2.com.cn
c12.com
c12.kr
c12.nl
21c.it
1c2.net
12c.in
12c.co.uk
12c.eu
c12.com.br
2c1.com
c12.tv
2c1.net
c12.ca
21c.com
1c2.fr
12c.org
21c.org
12c.cn
12c.io
21c.jp
12c.com.cn
c12.ru
21c.community
21c.biz
21c.or.jp
1c2.com
2c1.cz
12c.de
c12.de

DNS History

15 records (8 active, 7 former)

202120222023202420252026NSns1.gocloudeasy.comns2.gocloudeasy.comns3.gocloudeasy.comnsa.pixelhost.sgnsb.pixelhost.sgnsc.pixelhost.sgangela.ns.cloudflare.comglen.ns.cloudflare.comMXmail.c21.com.sgsg1-ls3.a2hosting.comA23.108.103.230104.18.32.241104.18.33.2412606:4700:3033::6812:21f12606:4700:3037::6812:20f1
○NSangela.ns.cloudflare.com2020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
○NSglen.ns.cloudflare.com2020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
●NSns1.gocloudeasy.com2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●NSns2.gocloudeasy.com2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●NSns3.gocloudeasy.com2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●NSnsa.pixelhost.sg2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●NSnsb.pixelhost.sg2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●NSnsc.pixelhost.sg2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
●MXmail.c21.com.sg2026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
○MXsg1-ls3.a2hosting.com2020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
○A104.18.32.2412020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
○A104.18.33.2412020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
●A23.108.103.2302026-05-05 → 2026-05-14 · 3 obs
○ 2020-02-07 13:13:42
● 2026-05-05 12:20:56
● 2026-05-14 00:20:24
○A2606:4700:3033::6812:21f12020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24
○A2606:4700:3037::6812:20f12020-02-07 → 2020-02-07 · 3 obs
● 2020-02-07 13:13:42
○ 2026-05-05 12:20:56
○ 2026-05-14 00:20:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sgpch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg, dsany4.sgnic.sg-
c21.com.sgnsa.pixelhost.sg, nsb.pixelhost.sg, nsc.pixelhost.sg-

✅ Authoritative Response

Server:45.32.110.205

NS records: nsa.pixelhost.sg, nsb.pixelhost.sg, nsc.pixelhost.sg

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c21.com.sg (unsigned zone)

⏱️ Timing

Total: 1488ms | Queries: -

📄 Records

TypeCountSample Data
A123.108.103.230
NS3ns2.gocloudeasy.com, ns1.gocloudeasy.com...
MX1mail.c21.com.sg (pri: 0)
TXT3Sendinblue-code:6d9b14045cefbc00d8fc7f83, v=DMARC1;p=none;rua=mailto:postmaster@c2...
SOA1ns1.gocloudeasy.com hostmaster.gocloudea

Analysis

Hierarchy

c21.com.sg is parent of mail.c21.com.sg.

IP Addresses

c21.com.sg points to a single IP: 23.108.103.230.

Other host names, for instance mail.diamondglass.com.sg, namsengauto.com, mariafung.com, ahava.com.sg and beautech.com.sg share IP numbers with c21.com.sg.

Name Servers

c21.com.sg is delegated to six name servers: ns1.gocloudeasy.com, ns2.gocloudeasy.com, ns3.gocloudeasy.com, nsa.pixelhost.sg, nsb.pixelhost.sg and nsc.pixelhost.sg.

c21.com.sg at least partially shares its name servers with other domains, for instance beamgl.com, oom.com.sg, infinops.com.sg, 65coffeegirleats.com and ntrustconsultancy.sg.

These name servers are commonly paired with ns1.cldy.com, ns2.cldy.com, ns3.cldy.com, ns23.firstcom.com.sg, ns25.firstcom.com.sg, ns27.firstcom.com.sg, ns1.cloud.verzdesign.com, ns2.cloud.verzdesign.com and ns3.cloud.verzdesign.com.

Host names with one IP number:

The host name ns1.gocloudeasy.com maps to 45.83.248.52.

The host name ns2.gocloudeasy.com maps to 45.83.249.52.

The host name ns3.gocloudeasy.com maps to 45.83.250.52.

The host name nsa.pixelhost.sg maps to 54.255.9.46.

The host name nsb.pixelhost.sg maps to 45.32.110.205.

The host name nsc.pixelhost.sg maps to 206.81.8.79.

Mail Servers

c21.com.sg is served by a single mail server, mail.c21.com.sg.

mail.c21.com.sg points to IP number 23.108.103.230.