tw3.co - robtex.com

tw3.co

DNSSEC⚠️ Not signed
A177.153.55.251🇧🇷 Locaweb177.153.52.0/22 Servicos de Internet SA
PTRvpshost5288.publiccloud.com.br
NSns1.locaweb.com.br ⭐
A2804:218:7000:0:186:202:8:254🇧🇷 Locaweb2804:218:7000::/48
A186.202.8.254🇧🇷 Locaweb186.202.8.0/24 Servicos de Internet SA
NSns2.locaweb.com.br
A2804:218:7001:0:187:45:248:254🇧🇷 Locaweb2804:218:7001::/48
A187.45.248.254🇧🇷 Locaweb187.45.248.0/24 Servicos de Internet SA
NSns3.locaweb.com.br
A2804:218:7002:0:189:126:101:254🇧🇷 Locaweb2804:218:7002::/48
A189.126.101.254🇧🇷 Locaweb189.126.101.0/24 Servicos de Internet SA
MXmx.core.locaweb.com.br ⭐
A177.153.23.241🇧🇷 Locaweb177.153.0.0/19 Servicos de Internet SA
PTRmx.core.locaweb.com.br
MXmx.a.locaweb.com.br(20)
A186.202.4.42🇧🇷 Locaweb186.202.0.0/19 Servicos de Internet SA
PTRmx.a.locaweb.com.br
MXmx.b.locaweb.com.br(20)
A177.153.23.242🇧🇷 Locaweb177.153.0.0/19 Servicos de Internet SA
PTRmx.b.locaweb.com.br
MXmx.jk.locaweb.com.br(20)
A200.234.204.130🇧🇷 Locaweb200.234.192.0/20 Servicos de Internet SA
PTRmx.jk.locaweb.com.br
TXTv=spf1 include:_spf.locaweb.com.br -all
TXTgoogle-site-verification=Fn1EeV1RvHaoZRuuT6a9uuaYm7L_5omJcxlwFEcRlCU
SOAns1.locaweb.com.brpostmaster@locaweb.com.br 2026-05-11 #1

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759658796

Subdomains

mail.tw3.co

Same first word

tw3.biz
tw3.it
tw3.com.au
tw3.nl
tw3.gr
tw3.co
tw3.net
tw3.de

Similar names

3wt.jp
wt3.de
3wt.com.mx
w3t.com.br
w3t.info
t3w.cz
w3t.com
3wt.nl
w3t.ru
3tw.ru
t3w.ru
3tw.net
3tw.us
w3t.it
wt3.fr
w3t.co.uk
t3w.eu
3wt.it
3wt.biz
3tw.de
t3w.org
3tw.it
w3t.fr
w3t.ch
t3w.io
3wt.ch
3wt.org
3wt.eu
3wt.de
w3t.co
t3w.com
w3t.cn
3wt.com.br
w3t.de
3wt.net
3wt.info
wt3.co.uk
w3t.cc
t3w.cn
wt3.com.br
3wt.com
3tw.org
w3t.net
3wt.cn

DNS History

16 records (8 active, 8 former)

NSns1.locaweb.com.brns2.locaweb.com.brns3.locaweb.com.brns1.cloudez.ions2.cloudez.ions3.cloudez.ions4.cloudez.ions5.cloudez.ioMXmx.a.locaweb.com.brmx.b.locaweb.com.brmx.core.locaweb.com.brmx.jk.locaweb.com.brmail.tw3.coA177.153.55.2512600:3c03::2000:58ff:feda:16b66.228.37.77
○NSns1.cloudez.io2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
●NSns1.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
○NSns2.cloudez.io2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
●NSns2.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
○NSns3.cloudez.io2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
●NSns3.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
○NSns4.cloudez.io2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
○NSns5.cloudez.io2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
○MXmail.tw3.co2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
●MXmx.a.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
●MXmx.b.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
●MXmx.core.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
●MXmx.jk.locaweb.com.br2026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
●A177.153.55.2512026-05-15 → 2026-05-15 · 2 obs
○ 2026-03-16 15:16:02
● 2026-05-15 17:03:06
○A2600:3c03::2000:58ff:feda:16b2026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06
○A66.228.37.772026-03-07 → 2026-03-16 · 3 obs
● 2026-03-07 13:57:14
● 2026-03-16 15:16:02
○ 2026-05-15 17:03:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coa.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co-
tw3.cons1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br-

✅ Authoritative Response

Server:186.202.8.254

NS records: ns1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tw3.co (unsigned zone)

⏱️ Timing

Total: 2751ms | Queries: -

📄 Records

TypeCountSample Data
A1177.153.55.251
NS3ns2.locaweb.com.br, ns1.locaweb.com.br...
MX4mx.core.locaweb.com.br (pri: 10), mx.b.locaweb.com.br (pri: 20)...
TXT2v=spf1 include:_spf.locaweb.com.br -all, google-site-verification=Fn1EeV1RvHaoZRu
SOA1ns1.locaweb.com.br postmaster.locaweb.co

Analysis

Hierarchy

The parent of mail.tw3.co is tw3.co.

IP Addresses

tw3.co points to a single IP number: 177.153.55.251.

Other host names, for instance cirurgica4.com.br, tomweb.com.br, vpshost5288.publiccloud.com.br, ytk.com.br and linnus.com.br share IP numbers with tw3.co.

Name Servers

The domain tw3.co is delegated to three name servers: ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br.

tw3.co shares name servers with other domains at least partially, for instance silmarpiscinas.com.br, foxmoto.com.br, originbrasil.com, cantorum.com.br and lelodani.com.br.

Host names with two IP numbers:

ns1.locaweb.com.br points to 2804:218:7000:0:186:202:8:254 and 186.202.8.254

ns2.locaweb.com.br points to 2804:218:7001:0:187:45:248:254 and 187.45.248.254

ns3.locaweb.com.br points to 2804:218:7002:0:189:126:101:254 and 189.126.101.254

Mail Servers

tw3.co is handled by four mail servers: mx.a.locaweb.com.br, mx.b.locaweb.com.br, mx.core.locaweb.com.br and mx.jk.locaweb.com.br.

tw3.co shares some mail servers with other domains, including knaus.com.br, minhacasasolar.com.br, lojasburiti.com.br, advancefomento.com and lwcorp.locaweb.com.br.

Host names with a single IP:

mx.a.locaweb.com.br points to 186.202.4.42.

mx.b.locaweb.com.br points to 177.153.23.242.

mx.core.locaweb.com.br points to 177.153.23.241.

mx.jk.locaweb.com.br points to 200.234.204.130.