`uc3m.edu`

DNSSEC	⚠️ Not signed
A	2001:b90:a:13::100^{🇪🇸 INTERHOST2001:b90::/32 Interhost Routing Policy}
A	176.58.10.138^{🇪🇸 ALTIA-AS176.58.10.0/24}
NS	`vortex.uc3m.es` ⭐
		A	2001:720:410:b131::31^{🇪🇸 RedIRIS2001:720::/32}
			PTR	`vortex.uc3m.es`
		A	163.117.131.31^{🇪🇸 RedIRIS163.117.0.0/16 UC3M}
			PTR	`vortex.uc3m.es`
NS	`saruman.uc3m.es`
		A	2001:720:410:b131::43^{🇪🇸 RedIRIS2001:720::/32}
			PTR	`saruman.uc3m.es`
		A	163.117.131.43^{🇪🇸 RedIRIS163.117.0.0/16 UC3M}
			PTR	`saruman.uc3m.es`
TXT	`v=spf1 ip4:163.117.0.1 -all`
TXT	`HARICA-ndZJllyFYlSSosFR9LT`
SOA	`vorteX.uc3m.es`netmaster@uc3m.es 2025-02-14 #1

`edu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.edu-servers.net` ⭐
	NS	`b.edu-servers.net`
	NS	`c.edu-servers.net`
	NS	`d.edu-servers.net`
	NS	`e.edu-servers.net`
	NS	`f.edu-servers.net`
	NS	`g.edu-servers.net`
	NS	`h.edu-servers.net`
	NS	`i.edu-servers.net`
	NS	`j.edu-servers.net`
	NS	`k.edu-servers.net`
	NS	`l.edu-servers.net`
	NS	`m.edu-servers.net`
	SOA	`a.edu-servers.net`nstld@verisign-grs.com serial=1774673912

Same first word

uc3m.edu

uc3m.eu

uc3m.com

uc3m.org

uc3m.es

uc3m.digital

uc3m.net

Similar names

ucm3.ir

3umc.com

3cum.com

3umc.org

m3cu.com

muc3.net

3muc.com

cum3.com

3ucm.com

muc3.com

muc3.cc

u3cm.com

DNS History

6 records (4 active, 2 former)

●NSsaruman.uc3m.es2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 02:31:48
● 2026-03-28 05:14:08

●NSvortex.uc3m.es2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 02:31:48
● 2026-03-28 05:14:08

○MXsmtp.uc3m.es2015-08-10 → 2016-11-24 · 4 obs

● 2015-08-10 02:31:48
● 2016-11-24 15:00:52
○ 2020-01-03 06:54:12
○ 2026-03-28 05:14:08

●A176.58.10.1382020-01-03 → 2026-03-28 · 3 obs

○ 2016-11-24 15:00:52
● 2020-01-03 06:54:12
● 2026-03-28 05:14:08

●A2001:b90:a:13::1002016-09-21 → 2026-03-28 · 3 obs

○ 2015-08-10 02:31:48
● 2016-09-21 17:20:50
● 2026-03-28 05:14:08

○A213.134.43.1662015-08-10 → 2016-11-24 · 4 obs

● 2015-08-10 02:31:48
● 2016-11-24 15:00:52
○ 2020-01-03 06:54:12
○ 2026-03-28 05:14:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	d.edu-servers.net, b.edu-servers.net, f.edu-servers.net, h.edu-servers.net...	-
uc3m.edu	saruman.uc3m.es, vortex.uc3m.es	-

✅ Authoritative Response

Server:163.117.131.43

NS records: saruman.uc3m.es, vortex.uc3m.es

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for uc3m.edu (unsigned zone)

⏱️ Timing

Total: 373ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`176.58.10.138`
AAAA	1	`2001:b90:a:13::100`
NS	2	`saruman.uc3m.es, vorteX.uc3m.es`
TXT	2	`v=spf1 ip4:163.117.0.1 -all, HARICA-ndZJllyFYlSSosFR9LT`
SOA	1	`vorteX.uc3m.es netmaster.uc3m.es`

Analysis

IP Addresses

uc3m.edu points to two IP numbers: 2001:b90:a:13::100 and 176.58.10.138.

Other host names such as www.uc3m.es, uc3m.eu, 138-10-58-176.data.altia.es, uc3m.org and uc3m.es share IPs with uc3m.edu.

Name Servers

Two name servers saruman.uc3m.es and vortex.uc3m.es handle the delegation for uc3m.edu.

uc3m.edu shares the same name server setup as other domains, for example evannai.inf.uc3m.es, caos.inf.uc3m.es, sel.inf.uc3m.es, aib.uc3m.es and 5.117.163.in-addr.arpa.

uc3m.edu at least partially shares name servers with other domains, for example uc3m.es, wifi-83-131.uc3m.es, it.uc3m.es, uc3m.net and 117.163.in-addr.arpa.

Name servers chico.rediris.es, sun.rediris.es, hermod.tsc.uc3m.es, puck.tsc.uc3m.es, umbriel.tsc.uc3m.es, tamtam.it.uc3m.es and varpa.it.uc3m.es are commonly used together.

Host names with two IP numbers:

saruman.uc3m.es points to 2001:720:410:b131::43 and 163.117.131.43.

vortex.uc3m.es points to 2001:720:410:b131::31 and 163.117.131.31.

uc3m.edu - robtex.com

uc3m.edu

edu