libnet.com.br - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`libnet.com.br`

DNSSEC	⚠️ Not signed
A	177.105.192.81^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
		PTR	`srvorm2.orm.com.br`
NS	`ns1.libnet.com.br` ⭐
		A	177.105.192.73^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
			PTR	`ns1.libnet.com.br`
NS	`ns2.libnet.com.br`
		A	177.105.192.74^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
			PTR	`ns2.libnet.com.br`
MX	`blockbit-smx.libnet.com.br` ⭐
		A	177.105.192.100^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
			PTR	`blockbit-smx.libnet.com.br`
MX	`libnet.com.br`⁽³⁰⁾
		A	177.105.192.81^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
			PTR	`srvorm2.orm.com.br`
MX	`srvzimbrabkp.libnet.com.br`⁽⁴⁰⁾
		A	177.105.192.101^{🇧🇷 ASLIBNET262651177.105.192.0/22 CLARO S.A. Customer}
			PTR	`srvzimbrabkp.libnet.com.br`
TXT	`v=spf1 a mx a:blockbit-smx.libnet.com.br a:srvorm2.orm.com.br ip4:177.105.192...`
SOA	`ns1.libnet.com.br`admin@belem.libnet.com.br 2008-04-18 #22

`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.br`hostmaster@registro.br serial=2026228036

rank #503295 globally
rank #3458 in the tld
WOT: SAFE (69/100)

MX for

libnet.com.br

Previously MX for

cursoslivresonline.com.br

Subdomains

ns3.libnet.com.br

belem.libnet.com.br

intra.libnet.com.br

monitor.libnet.com.br

cobalt.libnet.com.br

proxy.libnet.com.br

srvmediacenter.libnet.com.br

userstv.libnet.com.br

ns2.libnet.com.br

srvzimbrabkp.libnet.com.br

cgi.libnet.com.br

ns1.libnet.com.br

mailcorp.libnet.com.br

l3.libnet.com.br

ns4.libnet.com.br

marcos.libnet.com.br

maraba.libnet.com.br

ntflow.libnet.com.br

blockbit-smx.libnet.com.br

usersjor.libnet.com.br

ns.libnet.com.br

Same first word

libnet.org

libnet.ac.il

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libnet.info

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libnet.io

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libnet.fi

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libnet.de

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belint.es

lbient.com

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ibntel.com

DNS History

10 records (6 active, 4 former)

○NSns.libnet.com.br2008-11-05 → 2008-11-05 · 3 obs

● 2008-11-05 13:18:48
○ 2015-07-25 19:30:50
○ 2026-08-16 02:14:58

●NSns1.libnet.com.br2015-07-25 → 2026-08-16 · 3 obs

○ 2008-11-05 13:18:48
● 2015-07-25 19:30:50
● 2026-08-16 02:14:58

●NSns2.libnet.com.br2008-11-05 → 2026-08-16 · 2 obs

● 2008-11-05 13:18:48
● 2026-08-16 02:14:58

●MXblockbit-smx.libnet.com.br2021-03-15 → 2026-08-16 · 3 obs

○ 2017-09-07 10:00:22
● 2021-03-15 17:59:08
● 2026-08-16 02:14:58

○MXintra.libnet.com.br2008-11-05 → 2008-11-05 · 3 obs

● 2008-11-05 13:18:48
○ 2015-07-25 19:30:50
○ 2026-08-16 02:14:58

●MXlibnet.com.br2008-11-05 → 2026-08-16 · 2 obs

● 2008-11-05 13:18:48
● 2026-08-16 02:14:58

○MXsrvorm2.orm.com.br2015-07-25 → 2017-09-07 · 5 obs

○ 2008-11-05 13:18:48
● 2015-07-25 19:30:50
● 2017-09-07 10:00:22
○ 2021-03-15 17:59:08
○ 2026-08-16 02:14:58

●MXsrvzimbrabkp.libnet.com.br2021-03-15 → 2026-08-16 · 3 obs

○ 2017-09-07 10:00:22
● 2021-03-15 17:59:08
● 2026-08-16 02:14:58

●A177.105.192.812015-07-25 → 2026-08-16 · 3 obs

○ 2008-11-05 13:18:48
● 2015-07-25 19:30:50
● 2026-08-16 02:14:58

○A201.59.48.822008-11-05 → 2008-11-05 · 3 obs

● 2008-11-05 13:18:48
○ 2015-07-25 19:30:50
○ 2026-08-16 02:14:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	f.dns.br, d.dns.br, b.dns.br, e.dns.br...	-
libnet.com.br	ns1.libnet.com.br, ns2.libnet.com.br	2 records

✅ Authoritative Response

Server:177.105.192.74

NS records: ns1.libnet.com.br, ns2.libnet.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 518ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`177.105.192.81`
NS	2	`ns1.libnet.com.br, ns2.libnet.com.br`
MX	3	`blockbit-smx.libnet.com.br (pri: 10), srvzimbrabkp.libnet.com.br (pri: 40)...`
TXT	1	`v=spf1 a mx a:blockbit-smx.libnet.com.br`
SOA	1	`ns1.libnet.com.br admin.belem.libnet.com`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.libnet.com.br, ns2.libnet.com.br)

Analysis

Hierarchy

Among the subdomains of libnet.com.br are ns3.libnet.com.br, belem.libnet.com.br, intra.libnet.com.br, monitor.libnet.com.br, cobalt.libnet.com.br and a few other host names.

Mail Server Role

libnet.com.br acts as its own mail server.

blockbit-smx.libnet.com.br and srvzimbrabkp.libnet.com.br tend to appear as mail servers in combination with libnet.com.br.

IP Addresses

libnet.com.br points to a single IP number: 177.105.192.81.

Host names such as webmail.orm.com.br, srvorm2.orm.com.br and orm.com.br share their IP numbers with libnet.com.br.

Name Servers

libnet.com.br has two authoritative name servers — ns1.libnet.com.br and ns2.libnet.com.br.

libnet.com.br shares its name server setup with other domains, including 192.105.177.in-addr.arpa, oliberaldigital.com.br, deltadados.com.br and two others.

libnet.com.br has some name servers in common with other domains such as parafolia.com.br, mediacenterliberal.com.br and tvliberal.com

The name servers ns.libnet.com.br, ns1.ijet.com.br and ns2.ijet.com.br are often found in combination with these name servers.

ns1.libnet.com.br → 177.105.192.73 and ns2.libnet.com.br → 177.105.192.74: one IP number per host name.

Mail Servers

Mail for libnet.com.br is routed through three mail servers — libnet.com.br, blockbit-smx.libnet.com.br and srvzimbrabkp.libnet.com.br.

libnet.com.br shares mail servers — at least in part — with other domains, including parafolia.com.br, oliberaldigital.com.br, mediacenterliberal.com.br and two others.

These mail servers are frequently used alongside the mail servers mailcorp.libnet.com.br, 177.105.192.72.oliberaldigital.com.br and mail.mediacenterliberal.com, plus two others.

Each of the three hostnames points to exactly one IP address: libnet.com.br points to 177.105.192.81, blockbit-smx.libnet.com.br points to 177.105.192.100 and srvzimbrabkp.libnet.com.br points to 177.105.192.101.