`centrodoctoralu.com`

DNSSEC	⚠️ Not signed
A	178.211.133.21^{🇪🇸 RaiolaNetworks178.211.133.0/24}
		PTR	`com1010.raiolanetworks.es`
NS	`dns1.raiolanetworks.es` ⭐
		A	138.68.123.207^{🇳🇱 DIGITALOCEAN138.68.122.0/23 DigitalOcean}
NS	`dns2.raiolanetworks.es`
		A	52.17.24.175^{🇮🇪 Amazon52.16.0.0/15 EC2 DUB prefix}
			PTR	`dns2.raiolanetworks.es`
NS	`dns3.raiolanetworks.es`
		A	5.135.120.99^{🇪🇸 OVH5.135.0.0/16}
			PTR	`dns3.raiolanetworks.es`
MX	`mail.centrodoctoralu.com` ⭐
		A	178.211.133.21^{🇪🇸 RaiolaNetworks178.211.133.0/24}
			PTR	`com1010.raiolanetworks.es`
TXT	`google-site-verification=yMuyjbQNfMYYkzWxAzPPyBgQzkvJpBMTuIzidRJ8yV8`
TXT	`v=spf1 a mx +include:spf.raiolanetworks.com -all`
SOA	`dns1.raiolanetworks.es`cpanel@raiolanetworks.es 2026-01-25 #1

`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=1774387587

Subdomains

mail.centrodoctoralu.com

Same first word

centrodoctoralu.com

DNS History

9 records (5 active, 4 former)

○NSdns1.clonica.net2015-08-16 → 2017-07-04 · 4 obs

● 2015-08-16 07:24:24
● 2017-07-04 18:26:22
○ 2026-02-20 10:25:34
○ 2026-03-24 21:52:26

●NSdns1.raiolanetworks.es2026-02-20 → 2026-03-24 · 3 obs

○ 2017-07-04 18:26:22
● 2026-02-20 10:25:34
● 2026-03-24 21:52:26

○NSdns2.clonica.net2015-08-16 → 2017-07-04 · 4 obs

● 2015-08-16 07:24:24
● 2017-07-04 18:26:22
○ 2026-02-20 10:25:34
○ 2026-03-24 21:52:26

●NSdns2.raiolanetworks.es2026-02-20 → 2026-03-24 · 3 obs

○ 2017-07-04 18:26:22
● 2026-02-20 10:25:34
● 2026-03-24 21:52:26

●NSdns3.raiolanetworks.es2026-02-20 → 2026-03-24 · 3 obs

○ 2017-07-04 18:26:22
● 2026-02-20 10:25:34
● 2026-03-24 21:52:26

●MXmail.centrodoctoralu.com2015-08-16 → 2026-03-24 · 5 obs

● 2015-08-16 07:24:24
● 2016-12-02 03:35:12
○ 2017-07-04 18:26:22
● 2026-02-20 10:25:34
● 2026-03-24 21:52:26

○MXmx2.clonica.net2017-07-04 → 2017-07-04 · 4 obs

○ 2016-12-02 03:35:12
● 2017-07-04 18:26:22
○ 2026-02-20 10:25:34
○ 2026-03-24 21:52:26

●A178.211.133.212026-02-20 → 2026-03-24 · 3 obs

○ 2017-07-04 18:26:22
● 2026-02-20 10:25:34
● 2026-03-24 21:52:26

○A82.98.141.22015-08-16 → 2017-07-04 · 4 obs

● 2015-08-16 07:24:24
● 2017-07-04 18:26:22
○ 2026-02-20 10:25:34
○ 2026-03-24 21:52:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
centrodoctoralu.com	dns1.raiolanetworks.es, dns2.raiolanetworks.es, dns3.raiolanetworks.es	-

✅ Authoritative Response

Server:138.68.123.207

NS records: dns1.raiolanetworks.es, dns2.raiolanetworks.es, dns3.raiolanetworks.es

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centrodoctoralu.com (unsigned zone)

⏱️ Timing

Total: 2643ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`178.211.133.21`
NS	3	`dns1.raiolanetworks.es, dns2.raiolanetworks.es...`
MX	1	`mail.centrodoctoralu.com (pri: 0)`
TXT	2	`google-site-verification=yMuyjbQNfMYYkzW, v=spf1 a mx +include:spf.raiolanetworks.`
SOA	1	`dns1.raiolanetworks.es cpanel.raiolanetw`

Analysis

Hierarchy

centrodoctoralu.com is the parent of mail.centrodoctoralu.com.

IP Addresses

centrodoctoralu.com resolves to a single IP address: 178.211.133.21.

Other host names including mieltartesos.com, mail.web2design.eu, ortarrega.com, novailusion.es and evagalvez.com share IP numbers with centrodoctoralu.com.

Name Servers

centrodoctoralu.com is delegated to three name servers: dns1.raiolanetworks.es, dns2.raiolanetworks.es and dns3.raiolanetworks.es.

centrodoctoralu.com at least partially shares name servers with other domains, including catalogosviajes.com, secretoiberico.es, barrop.com, fiplas.com and carlosper.com.

Hostnames with a single IP:

dns1.raiolanetworks.es points to: 138.68.123.207.

dns2.raiolanetworks.es points to: 52.17.24.175.

dns3.raiolanetworks.es points to: 5.135.120.99.

Mail Servers

centrodoctoralu.com is handled by a single mail server, mail.centrodoctoralu.com.

mail.centrodoctoralu.com points to a single IP: 178.211.133.21.

centrodoctoralu.com - robtex.com