tsrtech.com.br - robtex.com

tsrtech.com.br

DNSSEC🔒 Signed (DS record present)
A45.239.137.69🇧🇷 AS26836245.239.137.0/24
PTRsrv1.rnet.com.br
NSa.sec.dns.br ⭐
A2001:12ff::11🇧🇷 REGISTROBRNET2001:12ff::/32 Registro.BR Network
PTRa.sec.dns.br
A200.160.0.11🇧🇷 REGISTROBRNET200.160.0.0/20 Registro.BR Network
PTRa.sec.dns.br
NSb.sec.dns.br
A2001:12f8:b:1::11🇧🇷 C-DNS-BR2001:12f8:b::/48 Registro.BR Network (C.DNS.BR)
PTRb.sec.dns.br
A200.192.232.11🇧🇷 C-DNS-BR200.192.232.0/24 Registro.BR Network (C.DNS.BR)
PTRb.sec.dns.br
MXmail.tsrtech.com.br ⭐
A45.239.137.69🇧🇷 AS26836245.239.137.0/24
PTRsrv1.rnet.com.br
TXTv=spf1 include:mailgun.org ~all
SOAa.sec.dns.brhostmaster@registro.br serial=2026181000

com.br

DNSSEC⚠️ Not signed
NSa.dns.br ⭐ ⚠️ Not in parent delegation
NSb.dns.br ⚠️ Not in parent delegation
NSc.dns.br ⚠️ Not in parent delegation
NSd.dns.br ⚠️ Not in parent delegation
NSe.dns.br ⚠️ Not in parent delegation
NSf.dns.br ⚠️ Not in parent delegation
SOAa.dns.brhostmaster@registro.br serial=2026203078
rank #514267 globally
rank #3775 in the tld
WOT: SAFE (69/100)

Subdomains

mail.tsrtech.com.br

Same first word

tsrtech.com
tsrtech.org
tsrtech.net
tsrtech.com.br
tsrtech.de

Similar names

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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026NSa.sec.dns.brb.sec.dns.brns1.dominios.uol.com.brns2.dominios.uol.com.brns3.dominios.uol.com.brMXmail.tsrtech.com.brmx.uhserver.comA45.239.137.69187.17.111.105
●NSa.sec.dns.br2026-06-30 → 2026-07-22 · 3 obs
○ 2016-03-12 10:43:20
● 2026-06-30 22:58:02
● 2026-07-22 03:21:26
●NSb.sec.dns.br2026-06-30 → 2026-07-22 · 3 obs
○ 2016-03-12 10:43:20
● 2026-06-30 22:58:02
● 2026-07-22 03:21:26
○NSns1.dominios.uol.com.br2015-05-20 → 2015-12-09 · 4 obs
● 2015-05-20 04:42:58
● 2015-12-09 06:08:00
○ 2016-03-12 10:43:20
○ 2026-07-22 03:21:26
○NSns2.dominios.uol.com.br2015-05-20 → 2015-12-09 · 4 obs
● 2015-05-20 04:42:58
● 2015-12-09 06:08:00
○ 2016-03-12 10:43:20
○ 2026-07-22 03:21:26
○NSns3.dominios.uol.com.br2015-05-20 → 2015-12-09 · 4 obs
● 2015-05-20 04:42:58
● 2015-12-09 06:08:00
○ 2016-03-12 10:43:20
○ 2026-07-22 03:21:26
●MXmail.tsrtech.com.br2026-06-30 → 2026-07-22 · 3 obs
○ 2016-03-12 10:43:20
● 2026-06-30 22:58:02
● 2026-07-22 03:21:26
○MXmx.uhserver.com2015-05-20 → 2015-12-09 · 4 obs
● 2015-05-20 04:42:58
● 2015-12-09 06:08:00
○ 2016-03-12 10:43:20
○ 2026-07-22 03:21:26
○A187.17.111.1052015-05-20 → 2015-12-09 · 4 obs
● 2015-05-20 04:42:58
● 2015-12-09 06:08:00
○ 2016-03-12 10:43:20
○ 2026-07-22 03:21:26
●A45.239.137.692026-06-30 → 2026-07-22 · 3 obs
○ 2016-03-12 10:43:20
● 2026-06-30 22:58:02
● 2026-07-22 03:21:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brf.dns.br, d.dns.br, b.dns.br, e.dns.br...-
tsrtech.com.brb.sec.dns.br, a.sec.dns.br-

✅ Authoritative Response

Server:200.192.232.11

NS records: b.sec.dns.br, a.sec.dns.br

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 811ms | Queries: -

📄 Records

TypeCountSample Data
A145.239.137.69
NS2b.sec.dns.br, a.sec.dns.br
MX1mail.tsrtech.com.br (pri: 10)
TXT1v=spf1 include:mailgun.org ~all
SOA1a.sec.dns.br hostmaster.registro.br

Analysis

Hierarchy

tsrtech.com.br is a parent domain of mail.tsrtech.com.br.

IP Addresses

tsrtech.com.br points to a single IP number: 45.239.137.69.

mail.tsrtech.com.br, for instance, is one of the other host names sharing IP numbers with tsrtech.com.br.

Name Servers

tsrtech.com.br uses two name servers for its delegation: a.sec.dns.br and b.sec.dns.br.

tsrtech.com.br shares its name server setup with other domains, including nohost.com.br, kingsys.com.br, laroya.com.br and two others.

tsrtech.com.br shares at least some of its name servers with other domains, including cieth.com.br, salgadosjoinville.com.br, imobiliariaescont.com.br and two others.

These name servers are frequently seen alongside the name servers c.sec.dns.br.

The two host names a.sec.dns.br and b.sec.dns.br each have a pair of IP addresses: a.sec.dns.br has 200.160.0.11 and 2001:12ff::11, and b.sec.dns.br has 200.192.232.11 and 2001:12f8:b:1::11.

Mail Servers

tsrtech.com.br has one mail server: mail.tsrtech.com.br.

mail.tsrtech.com.br directs to just one IP number, 45.239.137.69.