brcursos.com.br - robtex.com

brcursos.com.br

DNSSEC⚠️ Not signed
A89.116.225.228🇧🇷 IIHOS00189.116.224.0/23 HOSTINGER BR
PTRsrv746763.hstgr.cloud
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
SOAns1.locaweb.com.brpostmaster@locaweb.com.br 2026-04-10 #1

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 2026-12-15 #44
rank #538813 globally
rank #4109 in the tld
WOT: SAFE (69/100)

Same first word

brcursos.com.br

Similar names

cursosbr.com.br
cursosbr.net
cursosbr.com

DNS History

14 records (8 active, 6 former)

20162017201820192020202120222023202420252026NSns1.locaweb.com.brns2.locaweb.com.brns3.locaweb.com.brns1.above.comns2.above.comMXmx.a.locaweb.com.brmx.b.locaweb.com.brmx.core.locaweb.com.brmx.jk.locaweb.com.brmail.post-host.netmx92.m1bp.commx92.mb5p.comA89.116.225.228103.224.182.246
○NSns1.above.com2015-08-03 → 2017-03-13 · 4 obs
● 2015-08-03 02:50:44
● 2017-03-13 15:57:16
○ 2026-03-11 11:23:58
○ 2026-05-01 22:59:04
●NSns1.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
○NSns2.above.com2015-08-03 → 2017-03-13 · 4 obs
● 2015-08-03 02:50:44
● 2017-03-13 15:57:16
○ 2026-03-11 11:23:58
○ 2026-05-01 22:59:04
●NSns2.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
●NSns3.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
○MXmail.post-host.net2015-08-03 → 2016-07-07 · 4 obs
● 2015-08-03 02:50:44
● 2016-07-07 06:40:32
○ 2017-03-13 15:57:16
○ 2026-05-01 22:59:04
●MXmx.a.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
●MXmx.b.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
●MXmx.core.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
●MXmx.jk.locaweb.com.br2026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04
○MXmx92.m1bp.com2017-03-13 → 2017-03-13 · 4 obs
○ 2016-07-07 06:40:32
● 2017-03-13 15:57:16
○ 2026-03-11 11:23:58
○ 2026-05-01 22:59:04
○MXmx92.mb5p.com2017-03-13 → 2017-03-13 · 4 obs
○ 2016-07-07 06:40:32
● 2017-03-13 15:57:16
○ 2026-03-11 11:23:58
○ 2026-05-01 22:59:04
○A103.224.182.2462015-08-03 → 2017-03-13 · 4 obs
● 2015-08-03 02:50:44
● 2017-03-13 15:57:16
○ 2026-03-11 11:23:58
○ 2026-05-01 22:59:04
●A89.116.225.2282026-03-11 → 2026-05-01 · 3 obs
○ 2017-03-13 15:57:16
● 2026-03-11 11:23:58
● 2026-05-01 22:59:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brf.dns.br, d.dns.br, b.dns.br, e.dns.br...-
brcursos.com.brns1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br6 records

✅ Authoritative Response

Server:187.45.248.254

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for brcursos.com.br (unsigned zone)

⏱️ Timing

Total: 537ms | Queries: -

📄 Records

TypeCountSample Data
A189.116.225.228
NS3ns2.locaweb.com.br, ns3.locaweb.com.br...
MX4mx.a.locaweb.com.br (pri: 20), mx.b.locaweb.com.br (pri: 20)...
SOA1ns1.locaweb.com.br postmaster.locaweb.co

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br...)

Analysis

IP Addresses

brcursos.com.br points to a single IP number: 89.116.225.228.

Name Servers

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

brcursos.com.br shares name servers with other domains at least partially, for instance agenciade.com.br, ssalto.rj.gov.br, ibit.com.br, treetechusa.com and vestibular.fecilcam.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

brcursos.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.

brcursos.com.br shares some mail servers with other domains, including bischoff.com.br, unipublicabrasil.com.br, infinanceinsper.com, agenciaambientaldovale.sp.gov.br and olimpomg.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.