`mail.rdrinformatica.com.br`

CNAME	`business.infra-startup.com`
DNSSEC	⚠️ Not signed
A	2804:1740:112:501::^{🇧🇷 EVEO2804:1740:112::/48 CLARO S.A. Customer}
A	177.136.234.91^{🇧🇷 EVEO177.136.234.0/24 CLARO S.A. Customer}
MX	`business.infra-startup.com` ⭐
		A	2804:1740:112:501::^{🇧🇷 EVEO2804:1740:112::/48 CLARO S.A. Customer}
		A	177.136.234.91^{🇧🇷 EVEO177.136.234.0/24 CLARO S.A. Customer}
			PTR	`business.infra-startup.com`
TXT	`v=spf1 include:flat.outboundspamprotection.com ~all`

`rdrinformatica.com.br`

	DNSSEC	🔒 Signed (DS record present)
	A	2804:1740:112:501::^{🇧🇷 EVEO2804:1740:112::/48 CLARO S.A. Customer}
	A	177.136.234.91^{🇧🇷 EVEO177.136.234.0/24 CLARO S.A. Customer}
	NS	`ns1.rdrinformatica.com.br` ⭐
	NS	`ns2.rdrinformatica.com.br`
	MX	`mail.rdrinformatica.com.br` ⭐
	SOA	`ns1.rdrinformatica.com.br`suporte@rdrinformatica.com.br 2026-02-26 #1

MX for

rdrinformatica.com.br

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEbusiness.infra-startup.com2026-02-16 → 2026-04-25 · 2 obs

● 2026-02-16 03:50:52
● 2026-04-25 13:08:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
rdrinformatica.com.br	ns2.rdrinformatica.com.br, ns1.rdrinformatica.com.br	2 records

✅ Authoritative Response

Server:177.136.234.92

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 874ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`business.infra-startup.com`

📌 Glue Records Collected

Total: 2

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

Analysis

mail.rdrinformatica.com.br - robtex.com