`aprender21.com.ar`

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`
NS	`ns3.hostmar.com` ⭐
		A	200.58.112.193^{🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com}
			PTR	`ns3.hostmar.com`
NS	`ns1.donweb.com`
		A	200.58.112.193^{🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com}
			PTR	`ns3.hostmar.com`
NS	`ns2.donweb.com`
		A	200.58.112.101^{🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com}
			PTR	`ns4.hostmar.com`
MX	`mail.aprender21.com.ar` ⭐
		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`
TXT	`google-site-verification=b1ChDLKUJ38CBuNHad5BGLM_yPl_oGAlycDhU05gvDo`
TXT	`v=spf1 ip4:149.50.142.250 include:spf.hostmar.com ~all`
SOA	`ns3.hostmar.com`root@hostmar.com 2025-11-04 #2

`com.ar`

	DNSSEC	⚠️ Not signed
	NS	`e.dns.ar` ⭐ ⚠️ Not in parent delegation
	NS	`a.lactld.org` ⚠️ Not in parent delegation
	NS	`c.dns.ar` ⚠️ Not in parent delegation
	NS	`d.dns.ar` ⚠️ Not in parent delegation
	NS	`f.dns.ar` ⚠️ Not in parent delegation
	TXT	`COM.AR zone generated atEpoch 1776013429localtime 2026-04-12T14:03:49-03:00GM...`
	SOA	`e.dns.ar`noc@nic.gob.ar 2026-04-12 #14

WOT: SAFE (50/100)

Previously MX for

aprender21.com.ar

Subdomains

mail.aprender21.com.ar

Same first word

aprender21.com

aprender21.com.ar

DNS History

13 records (5 active, 8 former)

●NSns1.donweb.com2026-03-07 → 2026-04-12 · 3 obs

○ 2020-02-28 21:44:34
● 2026-03-07 04:26:32
● 2026-04-12 17:50:20

○NSns1.institutocbtech.com.ar2020-02-28 → 2020-02-28 · 4 obs

○ 2017-02-17 20:47:12
● 2020-02-28 21:44:34
○ 2026-03-07 04:26:32
○ 2026-04-12 17:50:20

●NSns2.donweb.com2026-03-07 → 2026-04-12 · 3 obs

○ 2020-02-28 21:44:34
● 2026-03-07 04:26:32
● 2026-04-12 17:50:20

○NSns2.institutocbtech.com.ar2020-02-28 → 2020-02-28 · 4 obs

○ 2017-02-17 20:47:12
● 2020-02-28 21:44:34
○ 2026-03-07 04:26:32
○ 2026-04-12 17:50:20

●NSns3.hostmar.com2026-03-07 → 2026-04-12 · 3 obs

○ 2020-02-28 21:44:34
● 2026-03-07 04:26:32
● 2026-04-12 17:50:20

○NSns8039.hostgator.com2015-08-12 → 2017-02-17 · 4 obs

● 2015-08-12 05:14:28
● 2017-02-17 20:47:12
○ 2020-02-28 21:44:34
○ 2026-04-12 17:50:20

○NSns991.hostgator.com2015-08-12 → 2017-02-17 · 4 obs

● 2015-08-12 05:14:28
● 2017-02-17 20:47:12
○ 2020-02-28 21:44:34
○ 2026-04-12 17:50:20

○NSns992.hostgator.com2015-08-12 → 2017-02-17 · 4 obs

● 2015-08-12 05:14:28
● 2017-02-17 20:47:12
○ 2020-02-28 21:44:34
○ 2026-04-12 17:50:20

○MXaprender21.com.ar2015-08-12 → 2020-02-28 · 4 obs

● 2015-08-12 05:14:28
● 2020-02-28 21:44:34
○ 2026-03-07 04:26:32
○ 2026-04-12 17:50:20

●MXmail.aprender21.com.ar2026-03-07 → 2026-04-12 · 3 obs

○ 2020-02-28 21:44:34
● 2026-03-07 04:26:32
● 2026-04-12 17:50:20

●A149.50.142.2502026-03-07 → 2026-04-12 · 3 obs

○ 2020-02-28 21:44:34
● 2026-03-07 04:26:32
● 2026-04-12 17:50:20

○A192.185.17.572015-08-12 → 2017-02-17 · 4 obs

● 2015-08-12 05:14:28
● 2017-02-17 20:47:12
○ 2020-02-28 21:44:34
○ 2026-04-12 17:50:20

○A50.116.109.1502020-02-28 → 2020-02-28 · 4 obs

○ 2017-02-17 20:47:12
● 2020-02-28 21:44:34
○ 2026-03-07 04:26:32
○ 2026-04-12 17:50:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ar	a.lactld.org, c.dns.ar, d.dns.ar, e.dns.ar...	10 records
aprender21.com.ar	ns1.donweb.com, ns2.donweb.com	-

✅ Authoritative Response

Server:200.58.112.101

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for aprender21.com.ar (unsigned zone)

⏱️ Timing

Total: 705ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`149.50.142.250`
NS	2	`ns1.donweb.com, ns2.donweb.com`
MX	1	`mail.aprender21.com.ar (pri: 0)`
TXT	2	`google-site-verification=b1ChDLKUJ38CBuN, v=spf1 ip4:149.50.142.250 include:spf.ho`
SOA	1	`ns3.hostmar.com root.hostmar.com`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (c.dns.ar, c.dns.ar, d.dns.ar...)

Out-of-bailiwick: 2 (a.lactld.org, a.lactld.org)

Analysis

Hierarchy

aprender21.com.ar is parent of mail.aprender21.com.ar.

IP Addresses

aprender21.com.ar points to a single IP: 149.50.142.250.

Other host names, for instance vps-4520453-x.dattaweb.com, aprender21.com, torrefuerte.com.ar, institutoserra.org and mail.aprender21.com.ar share IP numbers with aprender21.com.ar.

Name Servers

aprender21.com.ar is delegated to three name servers: ns1.donweb.com, ns2.donweb.com and ns3.hostmar.com.

aprender21.com.ar at least partially shares its name servers with other domains, for instance invesnet.cl, veterinariaelcrack.com.ar, nodobox.net, cimaq.com.mx and serprofesional.com.ar.

These name servers are commonly used with ns4.hostmar.com, ns21.dattatec.com, ns22.dattatec.com, ns2.donweb.bo, ns1.donweb.cl, ns1.donweb.co, ns1.donweb.mx, ns1.donweb.uy, ns3.donweb.com and ns4.donweb.com.

Host names sharing a single IP address:

Host name ns1.donweb.com points to 200.58.112.193.

Host name ns2.donweb.com points to 200.58.112.101.

Host name ns3.hostmar.com points to 200.58.112.193.

Host names sharing 200.58.112.193: ns1.donweb.com and ns3.hostmar.com.

Mail Servers

aprender21.com.ar is served by a single mail server, mail.aprender21.com.ar.

mail.aprender21.com.ar points to IP number 149.50.142.250.

aprender21.com.ar - robtex.com