rt.com.br - dns.ninja
rt.com.br
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 177.185.9.132🇧🇷 UNSPECIFIED177.185.0.0/20 ASCENTY DATA CENTERS E TELECOMUNICAÇÕES | ||||||
| PTR | 177-185-9-132.rev.ascentynet.com.br | ||||||
| NS | a.sec.dns.br ⭐ | ||||||
| A | 2001:12ff::11🇧🇷 REGISTROBRNET2001:12ff::/32 Registro.BR Network | ||||||
| PTR | a.sec.dns.br | ||||||
| A | 200.160.0.11🇧🇷 REGISTROBRNET200.160.0.0/20 Registro.BR Network | ||||||
| PTR | a.sec.dns.br | ||||||
| NS | c.sec.dns.br | ||||||
| A | 2001:12f8:9:1::11🇧🇷 B-DNS-BR2001:12f8:9::/48 Registro.BR Network (B.DNS.BR) | ||||||
| PTR | c.sec.dns.br | ||||||
| A | 200.189.40.11🇧🇷 B-DNS-BR200.189.40.0/24 Registro.BR Network (B.DNS.BR) | ||||||
| PTR | c.sec.dns.br | ||||||
| MX | asp-cluster.idc2.mandic.com.br ⭐ | ||||||
| TXT | v=spf1 include:spf.idc2.mandic.com.br ~all | ||||||
| SOA | a.sec.dns.brhostmaster@registro.br serial=2026183000 | ||||||
com.br
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.br ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.br ⚠️ Not in parent delegation | ||||||
| NS | c.dns.br ⚠️ Not in parent delegation | ||||||
| NS | d.dns.br ⚠️ Not in parent delegation | ||||||
| NS | e.dns.br ⚠️ Not in parent delegation | ||||||
| NS | f.dns.br ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.brhostmaster@registro.br serial=2026196298 | ||||||
rank #516313 globally
rank #3837 in the tld
WOT: SAFE (69/100)
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSa.sec.dns.br2015-07-08 → 2026-07-15 · 2 obs
● 2026-07-15 12:37:42
●NSc.sec.dns.br2015-07-08 → 2026-07-15 · 2 obs
● 2026-07-15 12:37:42
●MXasp-cluster.idc2.mandic.com.br2026-02-19 → 2026-07-15 · 3 obs
● 2026-02-19 20:22:06
● 2026-07-15 12:37:42
○MXmx-cluster.mandic.com.br2015-07-08 → 2017-01-02 · 4 obs
● 2017-01-02 22:51:28
○ 2026-02-19 20:22:06
○ 2026-07-15 12:37:42
●A177.185.9.1322015-07-08 → 2026-07-15 · 2 obs
● 2026-07-15 12:37:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | a.dns.br, b.dns.br, c.dns.br, d.dns.br... | - |
| rt.com.br | a.sec.dns.br, c.sec.dns.br | - |
✅ Authoritative Response
Server:200.189.40.11
NS records: a.sec.dns.br, c.sec.dns.br
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1909ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 177.185.9.132 |
| NS | 2 | c.sec.dns.br, a.sec.dns.br |
| MX | 1 | asp-cluster.idc2.mandic.com.br (pri: 10) |
| TXT | 1 | v=spf1 include:spf.idc2.mandic.com.br ~a |
| SOA | 1 | a.sec.dns.br hostmaster.registro.br |
Analysis
IP Addresses
rt.com.br has exactly one IP address — 177.185.9.132.
Name Servers
The NS records for rt.com.br delegate to a.sec.dns.br and c.sec.dns.br.
The name server configuration of rt.com.br is shared with other domains, for instance gapnetworks.com.br, armeq.com.br, metodos.net.br and two others.
There is at least partial name server overlap between rt.com.br and other domains — interflixtelecom.com.br, gasomex.com.br, qualipromobrindes.com.br and two more among them.
These name servers are routinely deployed together with the name servers b.sec.dns.br.
a.sec.dns.br resolves to 200.160.0.11 and 2001:12ff::11. Likewise, c.sec.dns.br resolves to 200.189.40.11 and 2001:12f8:9:1::11 — two IP addresses apiece.
Mail Servers
rt.com.br uses one mail server — asp-cluster.idc2.mandic.com.br.
The mail server setup of rt.com.br matches that of other domains such as funcke.com.br, clubedocontador.com.br, cerebromix.com.br and two others.
At least some of the mail servers used by rt.com.br are shared with other domains: consuladomineiro.com.br, outeirodagloria.org.br, consoline.com.br and two others among them.
These mail servers are often deployed together with antispam-cluster.idc2.mandic.com.br, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.