`mx.alfconstrutora.com`

DNSSEC	⚠️ Not signed
A	200.234.222.116^{🇧🇷 Locaweb200.234.220.0/22 Servicos de Internet SA}
		PTR	`mx01.admincontrolpanel.com`

`alfconstrutora.com`

	DNSSEC	⚠️ Not signed
	A	200.210.238.142^{🇧🇷 EMBRATEL200.210.0.0/16 CLARO S.A.}
	NS	`ns21.sisbr.net` ⭐ ⚠️ Not in parent delegation
	NS	`ns21.imobibrasil.com.br` ⚠️ Not in zone NS records
	NS	`ns21.imobibrasil.net` ⚠️ Not in parent delegation
	NS	`ns22.imobibrasil.com.br` ⚠️ Not in zone NS records
	NS	`ns22.imobibrasil.net` ⚠️ Not in parent delegation
	NS	`ns22.sisbr.net` ⚠️ Not in parent delegation
	MX	`mx.alfconstrutora.com` ⭐
	TXT	`v=spf1 ip4:200.210.238.142 ip4:10.100.0.181 ip4:200.210.238.142 ip4:187.73.19...`
	SOA	`ns21.sisbr.net`suporte@sysbrasil.com.br 2025-07-24 #1

MX for

alfconstrutora.com

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DNS History

2 records (1 active, 1 former)

○A192.163.202.1082017-12-14 → 2017-12-14 · 3 obs

● 2017-12-14 07:49:38
○ 2026-04-03 21:59:12
○ 2026-04-04 02:16:02

●A200.234.222.1162026-04-03 → 2026-04-04 · 3 obs

○ 2017-12-14 07:49:38
● 2026-04-03 21:59:12
● 2026-04-04 02:16:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
alfconstrutora.com	ns21.imobibrasil.com.br, ns22.imobibrasil.com.br	-

✅ Authoritative Response

Server:204.216.154.5

NS records: ns21.imobibrasil.com.br, ns22.imobibrasil.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alfconstrutora.com (unsigned zone)

⏱️ Timing

Total: 812ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`200.234.222.116`

Analysis

Mail Server Role

mx.alfconstrutora.com acts as a mail server for alfconstrutora.com.

IP Addresses

mx.alfconstrutora.com points to a single IP number: 200.234.222.116.

Other host names, for instance _dc-mx.bbafc72f3b3c.trevisoseminovos.com.br, mx.apiarioboaesperanca.com.br, mx.santuarionacional.org.br, mx.clickdez.com.br and mx.albertomeloimoveis.com.br share IP numbers with mx.alfconstrutora.com.

mx.alfconstrutora.com - robtex.com