rbk.com.br - robtex.com

rbk.com.br

DNSSEC⚠️ Not signed
A128.201.72.242🇧🇷 AS266618128.201.72.0/24 G8 Customer Proxy Route
PTRmanaus.midc.com.br
NSns1.midc.com.br ⭐ ⚠️ Not in parent delegation
A128.201.72.72🇧🇷 AS266618128.201.72.0/24 G8 Customer Proxy Route
PTRns1.midc.com.br
NSns1.megaprovedor.com.br ⚠️ Not in zone NS records
A2804:3ebc:c:aaaa:128:201:72:72🇧🇷 AS2666182804:3ebc::/32 G8 Customer Proxy Route
A128.201.72.72🇧🇷 AS266618128.201.72.0/24 G8 Customer Proxy Route
PTRns1.midc.com.br
NSns2.megaprovedor.com.br ⚠️ Not in zone NS records
A2804:3ebc:c:aaaa:128:201:73:73🇧🇷 AS2666182804:3ebc::/32 G8 Customer Proxy Route
A128.201.73.73🇧🇷 AS266618128.201.73.0/24 G8 Customer Proxy Route
PTRns2.midc.com.br
NSns2.midc.com.br ⚠️ Not in parent delegation
A128.201.73.73🇧🇷 AS266618128.201.73.0/24 G8 Customer Proxy Route
PTRns2.midc.com.br
NSns3.megaprovedor.com.br ⚠️ Not in zone NS records
A2804:3ebc:c:aaaa:128:201:74:74🇧🇷 AS2666182804:3ebc::/32 G8 Customer Proxy Route
A128.201.74.74🇧🇷 AS266618128.201.74.0/24 G8 Customer Proxy Route
PTRns3.midc.com.br
NSns3.midc.com.br ⚠️ Not in parent delegation
A2804:3ebc:c:aaaa:128:201:74:74🇧🇷 AS2666182804:3ebc::/32 G8 Customer Proxy Route
A128.201.74.74🇧🇷 AS266618128.201.74.0/24 G8 Customer Proxy Route
PTRns3.midc.com.br
MXrbk.com.br ⭐
A128.201.72.242🇧🇷 AS266618128.201.72.0/24 G8 Customer Proxy Route
PTRmanaus.midc.com.br
TXTv=spf1 ip4:128.201.72.242 +a +mx ~all
SOAns1.midc.com.bradm@rede.megaprovedor.com.br 2026-03-21 #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 serial=2026087306
rank #550367 globally
rank #4097 in the tld
WOT: SAFE (69/100)

MX for

rbk.com.br

Same first word

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krb.org
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brk.be

DNS History

15 records (8 active, 7 former)

20162017201820192020202120222023202420252026NSns1.megaprovedor.com.brns1.midc.com.brns2.megaprovedor.com.brns2.midc.com.brns3.megaprovedor.com.brns3.midc.com.brns1.sedoparking.comns2.sedoparking.comns588.hostgator.com.brns589.hostgator.com.brMXrbk.com.brmail.nickstel.comA128.201.72.242108.179.253.17272.52.4.119
●NSns1.megaprovedor.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
●NSns1.midc.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
○NSns1.sedoparking.com2015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 04:35:04
○ 2015-11-29 21:47:36
○ 2026-03-28 12:59:10
●NSns2.megaprovedor.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
●NSns2.midc.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
○NSns2.sedoparking.com2015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 04:35:04
○ 2015-11-29 21:47:36
○ 2026-03-28 12:59:10
●NSns3.megaprovedor.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
●NSns3.midc.com.br2026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
○NSns588.hostgator.com.br2016-03-24 → 2016-09-22 · 5 obs
○ 2015-11-29 21:47:36
● 2016-03-24 07:07:24
● 2016-09-22 03:50:16
○ 2016-11-28 11:47:24
○ 2026-03-28 12:59:10
○NSns589.hostgator.com.br2016-03-24 → 2016-09-22 · 5 obs
○ 2015-11-29 21:47:36
● 2016-03-24 07:07:24
● 2016-09-22 03:50:16
○ 2016-11-28 11:47:24
○ 2026-03-28 12:59:10
○MXmail.nickstel.com2015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 04:35:04
○ 2015-11-29 21:47:36
○ 2026-03-28 12:59:10
●MXrbk.com.br2016-03-24 → 2026-03-28 · 7 obs
○ 2015-11-29 21:47:36
● 2016-03-24 07:07:24
● 2016-09-22 03:50:16
○ 2016-11-28 11:47:24
○ 2016-12-04 21:44:58
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
○A108.179.253.1722016-03-24 → 2016-09-22 · 5 obs
○ 2015-11-29 21:47:36
● 2016-03-24 07:07:24
● 2016-09-22 03:50:16
○ 2016-11-28 11:47:24
○ 2026-03-28 12:59:10
●A128.201.72.2422026-03-27 → 2026-03-28 · 3 obs
○ 2016-11-28 11:47:24
● 2026-03-27 02:06:34
● 2026-03-28 12:59:10
○A72.52.4.1192015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 04:35:04
○ 2015-11-29 21:47:36
○ 2026-03-28 12:59:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brc.dns.br, d.dns.br, e.dns.br, f.dns.br...-
rbk.com.brns3.megaprovedor.com.br, ns1.megaprovedor.com.br, ns2.megaprovedor.com.br6 records

✅ Authoritative Response

Server:128.201.73.73

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 726ms | Queries: -

📄 Records

TypeCountSample Data
A1128.201.72.242
NS3ns1.midc.com.br, ns2.midc.com.br...
MX1rbk.com.br (pri: 0)
TXT1v=spf1 ip4:128.201.72.242 +a +mx ~all
SOA1ns1.midc.com.br adm.rede.megaprovedor.co

📌 Glue Records Collected

Total: 6

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

Analysis

Mail Server Role

For rbk.com.br, the mail server is rbk.com.br.

IP Addresses

rbk.com.br points to a single IP number: 128.201.72.242.

other host names for instance somatec.ind.br, manaus.midc.com.br, tecfeed.com.br, lavion.com.br and delfos.com.br share IP numbers with rbk.com.br.

Name Servers

rbk.com.br is delegated to six name servers: ns1.megaprovedor.com.br, ns2.megaprovedor.com.br, ns3.megaprovedor.com.br, ns1.midc.com.br, ns2.midc.com.br and ns3.midc.com.br.

rbk.com.br at least partially shares name servers with other domains, for instance upwebnoc.com, infraprovedor.com.br, endc.com.br, 73.201.128.in-addr.arpa and tecmix.inf.br.

These name servers are often used together with the name servers ns1.ultraprovedor.com.br, ns2.ultraprovedor.com.br, ns3.ultraprovedor.com.br, ns1.dexprovedor.com.br, ns2.dexprovedor.com.br, ns3.dexprovedor.com.br, ns1.netcatalogo.pro, ns2.netcatalogo.pro, ns1.portalcampina.com and ns2.portalcampina.com.

Host names with two IP numbers:

The host name ns1.megaprovedor.com.br points to 2804:3ebc:c:aaaa:128:201:72:72 and 128.201.72.72

The host name ns2.megaprovedor.com.br points to 2804:3ebc:c:aaaa:128:201:73:73 and 128.201.73.73

The host name ns3.megaprovedor.com.br points to 2804:3ebc:c:aaaa:128:201:74:74 and 128.201.74.74

The host name ns3.midc.com.br points to 2804:3ebc:c:aaaa:128:201:74:74 and 128.201.74.74

Host names with one IP number:

The host name ns1.midc.com.br points to 128.201.72.72

The host name ns2.midc.com.br points to 128.201.73.73

Host names that point to 128.201.72.72: ns1.megaprovedor.com.br and ns1.midc.com.br

Host names that point to 128.201.73.73: ns2.megaprovedor.com.br and ns2.midc.com.br

Host names that point to 2804:3ebc:c:aaaa:128:201:74:74: ns3.megaprovedor.com.br and ns3.midc.com.br

Host names that point to 128.201.74.74: ns3.megaprovedor.com.br and ns3.midc.com.br

Mail Servers

One mail server handles rbk.com.br.

Host name rbk.com.br points to IP address 128.201.72.242.