`cursosgratis.org`

DNSSEC	⚠️ Not signed
A	138.199.201.46^{🇩🇪 Hetzner138.199.128.0/17 HETZNER-DC}
		PTR	`automatix.bunnyface.de`
NS	`ns1.dondominio.com` ⭐
		A	87.117.96.2^{🇪🇸 SCIP-AS87.117.96.0/24 Soluciones Corporativas IP (SCIP)}
			PTR	`ns1.dondominio.com`
NS	`ns2.dondominio.com`
		A	87.117.96.3^{🇪🇸 SCIP-AS87.117.96.0/24 Soluciones Corporativas IP (SCIP)}
			PTR	`ns2.dondominio.com`
TXT	`v=spf1 include:spf.dondominio.com`
SOA	`ns1.dondominio.com`dnsadmin@dondominio.com 2026-05-27 #1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1786247851

Previously MX for

cursosgratis.org

Same first word

Similar names

gratiscursos.com

gratiscursos.es

DNS History

23 records (3 active, 20 former)

○NSdns1.pilhadigital.com.br2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2019-12-28 11:48:30
○ 2026-08-09 04:16:12

○NSdns2.pilhadigital.com.br2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2019-12-28 11:48:30
○ 2026-08-09 04:16:12

○NSdns3.pilhadigital.com.br2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2019-12-28 11:48:30
○ 2026-08-09 04:16:12

○NSdns4.pilhadigital.com.br2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2019-12-28 11:48:30
○ 2026-08-09 04:16:12

●NSns1.dondominio.com2026-07-20 → 2026-08-09 · 3 obs

○ 2019-12-28 11:48:30
● 2026-07-20 14:40:28
● 2026-08-09 04:16:12

○NSns1.pilha.inf.br2015-11-03 → 2016-04-08 · 5 obs

○ 2015-05-26 17:18:58
● 2015-11-03 01:29:44
● 2016-04-08 16:23:16
○ 2016-11-25 20:32:08
○ 2026-08-09 04:16:12

○NSns1.undeveloped.com2019-12-28 → 2019-12-28 · 4 obs

○ 2016-11-25 20:32:08
● 2019-12-28 11:48:30
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

●NSns2.dondominio.com2026-07-20 → 2026-08-09 · 3 obs

○ 2019-12-28 11:48:30
● 2026-07-20 14:40:28
● 2026-08-09 04:16:12

○NSns2.pilha.inf.br2015-11-03 → 2016-04-08 · 5 obs

○ 2015-05-26 17:18:58
● 2015-11-03 01:29:44
● 2016-04-08 16:23:16
○ 2016-11-25 20:32:08
○ 2026-08-09 04:16:12

○NSns2.undeveloped.com2019-12-28 → 2019-12-28 · 4 obs

○ 2016-11-25 20:32:08
● 2019-12-28 11:48:30
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

○NSns71.domaincontrol.com2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 17:18:58
○ 2015-11-03 01:29:44
○ 2026-08-09 04:16:12

○NSns72.domaincontrol.com2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 17:18:58
○ 2015-11-03 01:29:44
○ 2026-08-09 04:16:12

○MXcursosgratis.org2015-11-03 → 2016-04-08 · 5 obs

○ 2015-05-26 17:18:58
● 2015-11-03 01:29:44
● 2016-04-08 16:23:16
○ 2016-11-25 20:32:08
○ 2026-08-09 04:16:12

○MXmailstore1.secureserver.net2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 17:18:58
○ 2015-11-03 01:29:44
○ 2026-08-09 04:16:12

○MXmx-vip-01-farm74.uni5.net2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

○MXmx-vip-02-farm74.uni5.net2016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

○MXsmtp.secureserver.net2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 17:18:58
○ 2015-11-03 01:29:44
○ 2026-08-09 04:16:12

○A104.238.119.942015-11-03 → 2016-04-08 · 5 obs

○ 2015-05-26 17:18:58
● 2015-11-03 01:29:44
● 2016-04-08 16:23:16
○ 2016-11-25 20:32:08
○ 2026-08-09 04:16:12

●A138.199.201.462026-07-20 → 2026-08-09 · 3 obs

○ 2019-12-28 11:48:30
● 2026-07-20 14:40:28
● 2026-08-09 04:16:12

○A191.6.200.872016-11-25 → 2016-11-25 · 4 obs

○ 2016-04-08 16:23:16
● 2016-11-25 20:32:08
○ 2019-12-28 11:48:30
○ 2026-08-09 04:16:12

○A192.186.233.1022015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 17:18:58
○ 2015-11-03 01:29:44
○ 2026-08-09 04:16:12

○A2a05:d014:9da:8c10:306e:3e07:a16f:a5522019-12-28 → 2019-12-28 · 4 obs

○ 2016-11-25 20:32:08
● 2019-12-28 11:48:30
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

○A52.58.78.162019-12-28 → 2019-12-28 · 4 obs

○ 2016-11-25 20:32:08
● 2019-12-28 11:48:30
○ 2026-07-20 14:40:28
○ 2026-08-09 04:16:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org	-
cursosgratis.org	ns2.dondominio.com, ns1.dondominio.com	-

✅ Authoritative Response

Server:87.117.96.2

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cursosgratis.org (unsigned zone)

⏱️ Timing

Total: 518ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.199.201.46`
NS	2	`ns1.dondominio.com, ns2.dondominio.com`
TXT	1	`v=spf1 include:spf.dondominio.com`
SOA	1	`ns1.dondominio.com dnsadmin.dondominio.c`

Analysis

IP Addresses

cursosgratis.org has exactly one IP address — 138.199.201.46.

Host names such as opinamos.net, static.46.201.199.138.clients.your-server.de and baixarfontes.com share their IP numbers with cursosgratis.org.

Name Servers

cursosgratis.org is delegated to two name servers: ns1.dondominio.com and ns2.dondominio.com.

The name server configuration of cursosgratis.org is shared with other domains, for instance pafgio.com, hotelluz.com, trainee.es and two others.

At least some of cursosgratis.org's name servers are shared with other domains, for example servidigest.net, alkila2.com, organicmeat.bio and two more.

These name servers tend to appear together with the name servers ns7.dondominio.com, ns8.dondominio.com and ns6.dondominio.com, plus two others.

Each of ns1.dondominio.com and ns2.dondominio.com has one IP address: ns1.dondominio.com uses 87.117.96.2 and ns2.dondominio.com uses 87.117.96.3.

cursosgratis.org - robtex.com