studiu.pt - dns.ninja

`studiu.pt`

DNSSEC	⚠️ Not signed
A	81.88.57.70^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
NS	`ns1.amenworld.com` ⭐
		A	2a01:8100:2911::2:184:4^{🇮🇹 REGISTER-AS2a01:8100:2000::/36}
		A	81.88.61.4^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`host-81-88-61-4.dedicatedservers.it`
NS	`ns2.amenworld.com`
		A	81.88.63.40^{🇮🇹 REGISTER-AS81.88.63.0/24 Register.IT S.p.A. prefix}
			PTR	`ns2.amenworld.com`
MX	`mail-pt.securemail.pro` ⭐
		A	81.88.48.101^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`massenet.register.it`
TXT	`v=spf1 include:spf.webapps.net ~all`
SOA	`ns1.amenworld.com`root@amen.fr 2025-09-11 #1

`pt`

	DNSSEC	🔒 Signed (DS record present)
	NS	`curiosity.dns.pt` ⭐
	NS	`a.dns.pt`
	NS	`b.dns.pt`
	NS	`c.dns.pt`
	NS	`d.dns.pt`
	NS	`e.dns.pt`
	NS	`g.dns.pt`
	NS	`h.dns.pt`
	NS	`ns.dns.br` ⚠️ Not in parent delegation
	NS	`ns2.nic.fr` ⚠️ Not in parent delegation
	SOA	`curiosity.dns.pt`request@dns.pt 2026-08-02 #35

Subdomains

mail.studiu.pt

Same first word

studiu.de

studiu.org

studiu.net

studiu.pt

Similar names

uistud.io

stuudi.de

siudut.com

tisudu.com

suditu.cn

idutsu.com

diutsu.net

tusidu.com

stuudi.com

DNS History

15 records (4 active, 11 former)

○NSdns19.ovh.net2017-01-19 → 2020-01-22 · 5 obs

○ 2016-05-03 21:25:10
● 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

●NSns1.amenworld.com2026-04-03 → 2026-08-02 · 3 obs

○ 2020-01-22 19:57:08
● 2026-04-03 19:26:00
● 2026-08-02 17:02:54

○NSns19.ovh.net2017-01-19 → 2020-01-22 · 5 obs

○ 2016-05-03 21:25:10
● 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

●NSns2.amenworld.com2026-04-03 → 2026-08-02 · 3 obs

○ 2020-01-22 19:57:08
● 2026-04-03 19:26:00
● 2026-08-02 17:02:54

○NSsnomes03.servidoresdns.net2015-06-18 → 2016-05-03 · 4 obs

● 2015-06-18 14:07:22
● 2016-05-03 21:25:10
○ 2017-01-19 11:07:32
○ 2026-08-02 17:02:54

○NSsnomes04.servidoresdns.net2015-06-18 → 2016-05-03 · 4 obs

● 2015-06-18 14:07:22
● 2016-05-03 21:25:10
○ 2017-01-19 11:07:32
○ 2026-08-02 17:02:54

●MXmail-pt.securemail.pro2026-04-03 → 2026-08-02 · 3 obs

○ 2020-01-22 19:57:08
● 2026-04-03 19:26:00
● 2026-08-02 17:02:54

○MXmail.studiu.pt2015-06-18 → 2016-05-03 · 4 obs

● 2015-06-18 14:07:22
● 2016-05-03 21:25:10
○ 2017-01-19 11:07:32
○ 2026-08-02 17:02:54

○MXmx1.mail.ovh.net2017-01-19 → 2020-01-22 · 5 obs

○ 2016-05-03 21:25:10
● 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

○MXmx2.mail.ovh.net2017-01-19 → 2020-01-22 · 5 obs

○ 2016-05-03 21:25:10
● 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

○MXmx3.mail.ovh.net2017-01-19 → 2020-01-22 · 5 obs

○ 2016-05-03 21:25:10
● 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

○A167.86.106.822020-01-22 → 2020-01-22 · 4 obs

○ 2017-01-19 11:07:32
● 2020-01-22 19:57:08
○ 2026-04-03 19:26:00
○ 2026-08-02 17:02:54

○A188.93.231.1662016-02-07 → 2017-01-19 · 5 obs

○ 2015-11-02 19:51:38
● 2016-02-07 04:37:24
● 2017-01-19 11:07:32
○ 2020-01-22 19:57:08
○ 2026-08-02 17:02:54

●A81.88.57.702026-04-03 → 2026-08-02 · 3 obs

○ 2020-01-22 19:57:08
● 2026-04-03 19:26:00
● 2026-08-02 17:02:54

○A93.104.209.1532015-06-18 → 2015-11-02 · 4 obs

● 2015-06-18 14:07:22
● 2015-11-02 19:51:38
○ 2016-02-07 04:37:24
○ 2026-08-02 17:02:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt...	-
studiu.pt	ns2.amenworld.com, ns1.amenworld.com	-

✅ Authoritative Response

Server:81.88.61.4

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studiu.pt (unsigned zone)

⏱️ Timing

Total: 1850ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.88.57.70`
NS	2	`ns2.amenworld.com, ns1.amenworld.com`
MX	1	`mail-pt.securemail.pro (pri: 10)`
TXT	1	`v=spf1 include:spf.webapps.net ~all`
SOA	1	`ns1.amenworld.com root.amen.fr`

Analysis

Hierarchy

The domain mail.studiu.pt falls under the parent studiu.pt.

IP Addresses

studiu.pt resolves to just one IP address, 81.88.57.70.

Two other host names, along with dreamcometrue.pt, redeseg.com and vargas.pt, also share IP numbers with studiu.pt.

Name Servers

studiu.pt uses two name servers for its delegation: ns1.amenworld.com and ns2.amenworld.com.

studiu.pt shares its NS records with other domains, for example atlasviagens.com, crochetcute.com, vitorrocha.com and two others.

At least some of studiu.pt's name servers are shared with other domains, for example indisol.es, mailing-express.com, airindia.fr and two more.

These name servers are often deployed together with the name servers ns2.amen.fr, ns1.host7x24.com, ns2.host7x24.com and paris.amen.fr.

Host names that have two IP addresses:

ns1.amenworld.com directs traffic to 81.88.61.4 and 2a01:8100:2911::2:184:4.

Host names that point to one IP address:

ns2.amenworld.com has the IP address 81.88.63.40.

Mail Servers

The sole mail server for studiu.pt is mail-pt.securemail.pro.

Among the domains sharing a mail server setup with studiu.pt are direfor.com, lcbr-archives.com, upwind.pt and two others.

studiu.pt overlaps on mail servers with certain other domains, cardio-on.com among them.

mail-pt.securemail.pro directs to just one IP number, 81.88.48.101.