mastertec.com.br - dns.ninja
mastertec.com.br
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=2026163536 | ||||||
rank #3994 in the tld
WOT: SAFE (69/100)
Same first word
Similar names
DNS History
9 records (8 active, 1 former)
○NShm232015-07-11 → 2020-01-13 · 4 obs
● 2020-01-13 20:38:00
○ 2026-03-08 02:06:52
○ 2026-06-12 22:57:52
●NSns1.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●NSns2.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●NSns3.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●MXmx.a.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●MXmx.b.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●MXmx.core.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●MXmx.jk.locaweb.com.br2015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
●A187.45.193.1542015-07-11 → 2026-06-12 · 2 obs
● 2026-06-12 22:57:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | a.dns.br, b.dns.br, c.dns.br, d.dns.br... | - |
| mastertec.com.br | ns2.locaweb.com.br, ns1.locaweb.com.br | 4 records |
✅ Authoritative Response
Server:187.45.248.254
NS records: ns2.locaweb.com.br, ns1.locaweb.com.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mastertec.com.br (unsigned zone)
⏱️ Timing
Total: 1370ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 187.45.193.154 |
| NS | 3 | NS2.locaweb.com.br, NS3.locaweb.com.br... |
| MX | 4 | mx.b.locaweb.com.br (pri: 10), mx.core.locaweb.com.br (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.locaweb.com.br -all |
| SOA | 1 | ns1.locaweb.com.br hostmaster.locaweb.co |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.locaweb.com.br, ns1.locaweb.com.br, ns2.locaweb.com.br...)
Analysis
IP Addresses
mastertec.com.br directs to one IP number, which is 187.45.193.154.
Among the host names that share IP numbers with mastertec.com.br are hb-arcomprimido.com, sintracomos.org.br, eagv.com.br and two others.
Name Servers
mastertec.com.br has three name servers — ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br.
mastertec.com.br shares at least some of its name servers with other domains, including essek.com.br, iesa.edu.br, atracaofiat.com.br and two others.
Each of ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br points to two IP numbers. ns1.locaweb.com.br points to 186.202.8.254 and 2804:218:7000:0:186:202:8:254. ns2.locaweb.com.br points to 187.45.248.254 and 2804:218:7001:0:187:45:248:254. ns3.locaweb.com.br points to 189.126.101.254 and 2804:218:7002:0:189:126:101:254.
Mail Servers
mastertec.com.br 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.
mastertec.com.br shares at least some of its mail servers with other domains — for example topdesustentabilidade.org.br, ptsi.com.br, lojadosuper.com.br and two more.
mx.a.locaweb.com.br resolves to 186.202.4.42. mx.b.locaweb.com.br resolves to 177.153.23.242. mx.core.locaweb.com.br resolves to 177.153.23.241. mx.jk.locaweb.com.br resolves to 200.234.204.130. All four hosts carry exactly one IP address.