`competenciamatematica.com`

DNSSEC	⚠️ Not signed
A	89.248.107.109^{🇪🇸 cloudbuilders89.248.107.0/24}
		PTR	`rubio1.lems.es`
NS	`ns1.competenciamatematica.com` ⭐ ⚠️ Not in parent delegation
		A	89.248.107.109^{🇪🇸 cloudbuilders89.248.107.0/24}
			PTR	`rubio1.lems.es`
NS	`ns2.competenciamatematica.com` ⚠️ Not in parent delegation
		A	89.248.107.109^{🇪🇸 cloudbuilders89.248.107.0/24}
			PTR	`rubio1.lems.es`
NS	`rubio1.lems.es` ⚠️ Not in zone NS records
		A	89.248.107.109^{🇪🇸 cloudbuilders89.248.107.0/24}
			PTR	`rubio1.lems.es`
NS	`rubio2.lems.es` ⚠️ Not in zone NS records
		A	185.15.76.175^{🇪🇸 cloudbuilders185.15.76.0/24 Internet Access Routes of Cloudbuilders}
			PTR	`rubio1.lems.es`
MX	`mail.competenciamatematica.com` ⭐
		A	89.248.107.109^{🇪🇸 cloudbuilders89.248.107.0/24}
			PTR	`rubio1.lems.es`
TXT	`v=spf1 +a +mx +a:rubio1.lems.es -all`
SOA	`ns1.competenciamatematica.com`customer@interdominios.com 2025-02-25 #7

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778428551

Subdomains

ns2.competenciamatematica.com

mail.competenciamatematica.com

ns1.competenciamatematica.com

Same first word

competenciamatematica.com

DNS History

17 records (6 active, 11 former)

●NSns1.competenciamatematica.com2026-04-10 → 2026-05-10 · 3 obs

○ 2026-03-08 20:13:44
● 2026-04-10 07:15:00
● 2026-05-10 16:19:02

○NSns1.esdominios.es2017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-17 11:22:14
● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○NSns19.ixwebhosting.com2015-08-13 → 2016-07-17 · 4 obs

● 2015-08-13 20:54:38
● 2016-07-17 11:22:14
○ 2017-03-15 18:40:08
○ 2026-05-10 16:19:02

●NSns2.competenciamatematica.com2026-04-10 → 2026-05-10 · 3 obs

○ 2026-03-08 20:13:44
● 2026-04-10 07:15:00
● 2026-05-10 16:19:02

○NSns2.esdominios.es2017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-17 11:22:14
● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○NSns20.ixwebhosting.com2015-08-13 → 2016-07-17 · 4 obs

● 2015-08-13 20:54:38
● 2016-07-17 11:22:14
○ 2017-03-15 18:40:08
○ 2026-05-10 16:19:02

○NSns3.esdominios.es2017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-17 11:22:14
● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○NSns4.esdominios.es2017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-17 11:22:14
● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

●NSrubio1.lems.es2026-03-08 → 2026-05-10 · 3 obs

○ 2017-03-15 18:40:08
● 2026-03-08 20:13:44
● 2026-05-10 16:19:02

●NSrubio2.lems.es2026-03-08 → 2026-05-10 · 3 obs

○ 2017-03-15 18:40:08
● 2026-03-08 20:13:44
● 2026-05-10 16:19:02

●MXmail.competenciamatematica.com2026-04-10 → 2026-05-10 · 3 obs

○ 2026-03-08 20:13:44
● 2026-04-10 07:15:00
● 2026-05-10 16:19:02

○MXus2.mx1.mailhostbox.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○MXus2.mx2.mailhostbox.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○MXus2.mx3.mailhostbox.com2017-03-15 → 2017-03-15 · 3 obs

● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○A151.80.162.522017-03-15 → 2017-03-15 · 4 obs

○ 2016-07-17 11:22:14
● 2017-03-15 18:40:08
○ 2026-03-08 20:13:44
○ 2026-05-10 16:19:02

○A72.41.159.1972015-08-13 → 2016-07-17 · 4 obs

● 2015-08-13 20:54:38
● 2016-07-17 11:22:14
○ 2017-03-15 18:40:08
○ 2026-05-10 16:19:02

●A89.248.107.1092026-04-10 → 2026-05-10 · 3 obs

○ 2026-03-08 20:13:44
● 2026-04-10 07:15:00
● 2026-05-10 16:19:02

🔍 DNS Trace

Analysis

Hierarchy

competenciamatematica.com is a parent of ns2.competenciamatematica.com, mail.competenciamatematica.com and ns1.competenciamatematica.com.

IP Addresses

competenciamatematica.com points to a single IP address: 89.248.107.109.

Other host names such as cuadernosestimulacioncognitiva.com, mail.competenciamatematica.com, ns1.competenciamatematica.com, mail.rubio.net and ns1.cuadernosestimulacioncognitiva.com share IP numbers with competenciamatematica.com.

Name Servers

competenciamatematica.com is delegated to four name servers: ns1.competenciamatematica.com, ns2.competenciamatematica.com, rubio1.lems.es and rubio2.lems.es.

Host names sharing a single IP address:

ns1.competenciamatematica.com points to 89.248.107.109.

ns2.competenciamatematica.com points to 89.248.107.109.

rubio1.lems.es points to 89.248.107.109.

rubio2.lems.es points to 185.15.76.175.

Host names pointing to 89.248.107.109: ns1.competenciamatematica.com, ns2.competenciamatematica.com and rubio1.lems.es.

Mail Servers

The mail server for competenciamatematica.com is mail.competenciamatematica.com.

Host mail.competenciamatematica.com points to IP 89.248.107.109.

competenciamatematica.com - robtex.com