`matematicaemrede.com.br`

DNSSEC	🔒 Signed (DS record present)
A	177.139.154.130^{🇧🇷 Vivo_Fixed_Broadband_Services177.138.0.0/15 TELEFONICA BRASIL S/A}
		PTR	`177-139-154-130.dsl.telesp.net.br`
NS	`a.sec.dns.br` ⭐
		A	2001:12ff::11^{🇧🇷 REGISTROBRNET2001:12ff::/32 Registro.BR Network}
			PTR	`a.sec.dns.br`
		A	200.160.0.11^{🇧🇷 REGISTROBRNET200.160.0.0/20 Registro.BR Network}
			PTR	`a.sec.dns.br`
NS	`b.sec.dns.br`
		A	2001:12f8:b:1::11^{🇧🇷 C-DNS-BR2001:12f8:b::/48 Registro.BR Network (C.DNS.BR)}
			PTR	`b.sec.dns.br`
		A	200.192.232.11^{🇧🇷 C-DNS-BR200.192.232.0/24 Registro.BR Network (C.DNS.BR)}
			PTR	`b.sec.dns.br`
SOA	`a.sec.dns.br`hostmaster@registro.br serial=2026108000

`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=2026131374

rank #565561 globally
rank #4304 in the tld
WOT: SAFE (69/100)

Same first word

matematicaemrede.com.br

DNS History

4 records (3 active, 1 former)

●NSa.sec.dns.br2019-01-12 → 2026-05-11 · 2 obs

● 2019-01-12 21:32:32
● 2026-05-11 15:58:52

●NSb.sec.dns.br2019-01-12 → 2026-05-11 · 2 obs

● 2019-01-12 21:32:32
● 2026-05-11 15:58:52

○A152.250.243.1752019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:32:32
○ 2021-06-17 00:05:50
○ 2026-05-11 15:58:52

●A177.139.154.1302021-06-17 → 2026-05-11 · 3 obs

○ 2019-01-12 21:32:32
● 2021-06-17 00:05:50
● 2026-05-11 15:58:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
matematicaemrede.com.br	a.sec.dns.br, b.sec.dns.br	-

✅ Authoritative Response

Server:200.160.0.11

NS records: a.sec.dns.br, b.sec.dns.br

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`177.139.154.130`
NS	2	`a.sec.dns.br, b.sec.dns.br`
SOA	1	`a.sec.dns.br hostmaster.registro.br`

Analysis

IP Addresses

matematicaemrede.com.br points to a single IP address: 177.139.154.130.

Name Servers

matematicaemrede.com.br is delegated to two name servers: a.sec.dns.br and b.sec.dns.br.

matematicaemrede.com.br uses the same name server setup as other domains, including fgo.esp.br, starmotorsrio.com.br, cariman.com.br, grappe.com.br and gestaoluziania.com.br.

At least part of the name servers for matematicaemrede.com.br are shared with other domains, for instance sawaya.com.br, cdslog.com.br, primamoda.com.br, prudenflora.com.br and showabr.ind.br.

These name servers are commonly used alongside the name servers c.sec.dns.br.

Host names with two IP numbers:

a.sec.dns.br points to 2001:12ff::11 and 200.160.0.11.

b.sec.dns.br points to 2001:12f8:b:1::11 and 200.192.232.11.

matematicaemrede.com.br - robtex.com