mu.app.br - robtex.com
mu.app.br
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2605:a144:2329:8628::1🇺🇸 CONTABO-USA2605:a144::/32 CONTABO EWR | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| A | 147.93.183.226🇧🇪 CONTABO-USA147.93.176.0/20 | ||||||
| NS | vmi3298628.contaboserver.net ⭐ | ||||||
| A | 2605:a144:2329:8628::1🇺🇸 CONTABO-USA2605:a144::/32 CONTABO EWR | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| A | 147.93.183.226🇧🇪 CONTABO-USA147.93.176.0/20 | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| NS | ns1.mu.app.br | ||||||
| A | 147.93.183.226🇧🇪 CONTABO-USA147.93.176.0/20 | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| NS | ns2.mu.app.br | ||||||
| A | 2605:a144:2329:8628::1🇺🇸 CONTABO-USA2605:a144::/32 CONTABO EWR | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| MX | mail.mu.app.br ⭐ | ||||||
| A | 2605:a144:2329:8628::1🇺🇸 CONTABO-USA2605:a144::/32 CONTABO EWR | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| A | 147.93.183.226🇧🇪 CONTABO-USA147.93.176.0/20 | ||||||
| PTR | vmi3298628.contaboserver.net | ||||||
| TXT | v=spf1 a mx a:mu.app.br ip4:147.93.183.226 ip6:2605:a144:2329:8628::1 ~all | ||||||
| SOA | vmi3298628.contaboserver.netroot@vmi3298628.contaboserver.net 2026-05-30 #1 | ||||||
app.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=2026200540 | ||||||
rank #70 in the tld
app.br
app.br is a second‑level domain under the Brazilian.brtop‑level domain, intended for individuals and businesses to promote mobile or web applications in Brazil. It is administered by the Brazilian Network Information Center (NIC.br).
Key facts
- Owner / operator: Brazilian Network Information Center (NIC.br)
- TLD:
.br— country code top‑level domain for Brazil - Primary purpose: domain for mobile/web applications in Brazil
- Status: active
NS for
Subdomains
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1.mu.app.br2026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
●NSns2.mu.app.br2026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
●NSvmi3298628.contaboserver.net2026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
●MXmail.mu.app.br2026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
●A147.93.183.2262026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
●A2605:a144:2329:8628::12026-07-02 → 2026-07-19 · 2 obs
● 2026-07-19 22:32:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | a.dns.br, b.dns.br, c.dns.br, d.dns.br... | - |
| mu.app.br | ns1.mu.app.br, ns2.mu.app.br | 2 records |
✅ Authoritative Response
Server:2605:a144:2329:8628::1
NS records: ns1.mu.app.br, ns2.mu.app.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mu.app.br (unsigned zone)
⏱️ Timing
Total: 762ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.93.183.226 |
| AAAA | 1 | 2605:a144:2329:8628::1 |
| NS | 2 | ns2.mu.app.br, ns1.mu.app.br |
| MX | 1 | mail.mu.app.br (pri: 5) |
| TXT | 1 | v=spf1 a mx a:mu.app.br ip4:147.93.183.2 |
| SOA | 1 | vmi3298628.contaboserver.net root.vmi329 |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.mu.app.br, ns2.mu.app.br)
Analysis
Hierarchy
mail.mu.app.br, ns1.mu.app.br and ns2.mu.app.br are all subdomains of mu.app.br.
Name Server Role
wsistemas.com and negocialbh.com share mu.app.br as one of their name servers.
ns2.mu.app.br, dns2.mu.app.br and mu.app.br are commonly seen together as name servers.
IP Addresses
mu.app.br points to the IP addresses 147.93.183.226 and 2605:a144:2329:8628::1
wsistemas.com, mail.mu.app.br, mail.negocialbh.com plus two other host names have IP numbers in common with mu.app.br.
Name Servers
Three name servers are authoritative for mu.app.br: vmi3298628.contaboserver.net, ns1.mu.app.br and ns2.mu.app.br.
The name servers for mu.app.br overlap at least in part with those of other domains, including wsistemas.com and negocialbh.com.
Host names pointing to two IP addresses:
vmi3298628.contaboserver.net maps to two IP addresses — 147.93.183.226 and 2605:a144:2329:8628::1.
Host names resolving to a single IP address:
ns1.mu.app.br points to the IP address 147.93.183.226.
ns2.mu.app.br points to the IP address 2605:a144:2329:8628::1.
These two host names — vmi3298628.contaboserver.net and ns2.mu.app.br — each point to 2605:a144:2329:8628::1 IP addresses.
These two host names — vmi3298628.contaboserver.net and ns1.mu.app.br — each point to 147.93.183.226 IP addresses.
Mail Servers
mu.app.br uses one mail server — mail.mu.app.br.
mail.mu.app.br resolves to two IP numbers — 147.93.183.226 and 2605:a144:2329:8628::1.