`mail.aprender21.com`

DNSSEC	⚠️ Not signed
A	149.50.142.250^{🇦🇷 AS27823149.50.142.0/24 Route Registered for Cogent Communications Customer - DATTATEC.COM S.R.L.}
		PTR	`vps-4520453-x.dattaweb.com`

`aprender21.com`

	DNSSEC	⚠️ Not signed
	A	149.50.142.250^{🇦🇷 AS27823149.50.142.0/24 Route Registered for Cogent Communications Customer - DATTATEC.COM S.R.L.}
	NS	`ns3.hostmar.com` ⭐
	NS	`ns1.donweb.com`
	NS	`ns2.donweb.com`
	MX	`mail.aprender21.com` ⭐
	TXT	`google-site-verification=qg1dMqx7B4T30S6aOF4uuvQflqkhK46inHckfOJCQRA`
	TXT	`v=spf1 include:spf.hostmar.com ip4:149.50.142.250 ip6:2800:6c0:5::117c includ...`
	SOA	`ns3.hostmar.com`root@hostmar.com 2026-03-17 #0

MX for

aprender21.com

Same first word

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DNS History

2 records (1 active, 1 former)

●A149.50.142.2502026-03-07 → 2026-04-13 · 2 obs

● 2026-03-07 04:26:28
● 2026-04-13 05:06:50

○CNAMEaprender21.com2020-02-05 → 2020-02-05 · 3 obs

● 2020-02-05 06:28:36
○ 2026-03-07 04:26:28
○ 2026-04-13 05:06:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
aprender21.com	ns1.donweb.com, ns2.donweb.com	2 records

✅ Authoritative Response

Server:200.58.112.193

NS records: ns1.donweb.com, ns2.donweb.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for aprender21.com (unsigned zone)

⏱️ Timing

Total: 386ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`149.50.142.250`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.donweb.com, ns2.donweb.com)

Analysis

Mail Server Role

mail.aprender21.com serves as the mail server for aprender21.com.

IP Addresses

mail.aprender21.com points to IP number 149.50.142.250.

For instance, other host names aprender21.com.ar, institutoserra.org, mail.aprender21.com.ar, mail.torrefuerte.com.ar and cordobatech.com.ar share IP numbers with mail.aprender21.com.

mail.aprender21.com - robtex.com