mail.d21.com.br - robtex.com

mail.d21.com.br

DNSSEC⚠️ Not signed
A148.72.158.88🇺🇸 AS30083148.72.158.0/23 GoDaddy STL
PTRplesk47.openwebhost.com.br

d21.com.br

DNSSEC⚠️ Not signed
A148.72.158.88🇺🇸 AS30083148.72.158.0/23 GoDaddy STL
NSns1.d21.com.br ⭐ ⚠️ Not in parent delegation
NSns2.d21.com.br ⚠️ Not in parent delegation
NSns92.openweb.com.br ⚠️ Not in zone NS records
NSns93.openweb.com.br ⚠️ Not in zone NS records
MXmail.d21.com.br ⭐
TXTv=spf1 +a +mx +a:plesk47.openwebhost.com.br include:spf.47.openweb.com.br -all
SOAns1.d21.com.brinfo@openweb.com.br serial=1773677469

MX for

d21.com.br

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DNS History

3 records (1 active, 2 former)

197019751980198519901995200020052010201520202025A148.72.158.8869.41.175.10669.41.178.82
●A148.72.158.882026-02-18 → 2026-04-15 · 3 obs
○ 2016-07-30 06:57:40
● 2026-02-18 12:04:32
● 2026-04-15 10:46:34
○A69.41.175.1062016-07-30 → 2016-07-30 · 4 obs
○ 1970-01-01 00:00:00
● 2016-07-30 06:57:40
○ 2026-02-18 12:04:32
○ 2026-04-15 10:46:34
○A69.41.178.821970-01-01 → 1970-01-01 · 3 obs
● 1970-01-01 00:00:00
○ 2016-07-30 06:57:40
○ 2026-04-15 10:46:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brf.dns.br, d.dns.br, b.dns.br, e.dns.br...-
d21.com.brns93.openweb.com.br, ns92.openweb.com.br-

✅ Authoritative Response

Server:50.30.36.23

NS records: ns93.openweb.com.br, ns92.openweb.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for d21.com.br (unsigned zone)

⏱️ Timing

Total: 527ms | Queries: -

📄 Records

TypeCountSample Data
A1148.72.158.88

Analysis

Mail Server Role

mail.d21.com.br functions as a mail server for d21.com.br.

IP Addresses

mail.d21.com.br resolves to one IP number: 148.72.158.88.

other host names including mail.dm18.com.br, ns1.ergonomiars.com.br, ns2.d21.com.br, englishcentral.com.br and ns2.englishcentral.com.br share IP numbers with mail.d21.com.br.