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`ctsu.pt`

DNSSEC	⚠️ Not signed
NS	`ns1-01.azure-dns.com` ⭐
		A	2603:1061:0:700::1^{🇺🇸 Microsoft}
			PTR	`ns1-01.azure-dns.com`
		A	13.107.236.1^{🇺🇸 Microsoft}
			PTR	`ns1-01.azure-dns.com`
NS	`ns2-01.azure-dns.net`
		A	2620:1ec:8ec:700::1^{🇺🇸 Microsoft}
			PTR	`ns2-01.azure-dns.net`
		A	150.171.21.1^{🇺🇸 Microsoft}
			PTR	`ns2-01.azure-dns.net`
NS	`ns3-01.azure-dns.org`
		A	2a01:111:4000:700::1^{🇬🇧 Microsoft}
			PTR	`ns3-01.azure-dns.org`
		A	204.14.183.1^{🇺🇸 Microsoft}
			PTR	`ns3-01.azure-dns.org`
NS	`ns4-01.azure-dns.info`
		A	2620:1ec:bda:700::1^{🇺🇸 Microsoft}
			PTR	`ns4-01.azure-dns.info`
		A	208.84.5.1^{🇺🇸 Microsoft}
			PTR	`ns4-01.azure-dns.info`
MX	`mx1.deloittept.c3s2.iphmx.com` ⭐
		A	68.232.133.50^{🇺🇸 CISCO-2}
		A	68.232.139.45^{🇺🇸 CISCO-2}
		A	216.71.156.141^{🇺🇸 CISCO-2}
		A	216.71.158.221^{🇺🇸 CISCO-2}
MX	`mx2.deloittept.c3s2.iphmx.com` ⭐
		A	68.232.133.50^{🇺🇸 CISCO-2}
		A	68.232.139.45^{🇺🇸 CISCO-2}
		A	216.71.156.141^{🇺🇸 CISCO-2}
		A	216.71.158.221^{🇺🇸 CISCO-2}
TXT	`v=spf1 a mx exists:%{i}.spf.deloittept.c3s2.iphmx.com -all`
TXT	`MS=ms74450817`
TXT	`8t236k5sglw6kyxmn8r3jdqzy1cxrpll`
TXT	`atlassian-domain-verification=klP0SOYpHOmK5UfYPWTzrfJMa9Ma5vNlib6sd3g2riul41q...`
TXT	`9hdd0kt7xm7hxn82zm4vdblfr3htpwqv`
SOA	`ns1-01.azure-dns.com`azuredns-hostmaster@microsoft.com serial=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` 🔒
	NS	`ns2.nic.fr` 🔒
	SOA	`curiosity.dns.pt`request@dns.pt 2026-02-17 #2

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DNS History

13 records (6 active, 7 former)

●NSns1-01.azure-dns.com2026-02-19 → 2026-02-19 · 2 obs

○ 2021-10-22 16:10:42
● 2026-02-19 02:46:24

○NSns10.mydnspt.net2015-07-18 → 2015-07-18 · 3 obs

● 2015-07-18 11:37:46
○ 2015-10-26 18:46:48
○ 2026-02-19 02:46:24

○NSns15.mydnspt.net2015-10-26 → 2021-10-22 · 4 obs

○ 2015-07-18 11:37:46
● 2015-10-26 18:46:48
● 2021-10-22 16:10:42
○ 2026-02-19 02:46:24

○NSns16.mydnspt.net2015-10-26 → 2021-10-22 · 4 obs

○ 2015-07-18 11:37:46
● 2015-10-26 18:46:48
● 2021-10-22 16:10:42
○ 2026-02-19 02:46:24

●NSns2-01.azure-dns.net2026-02-19 → 2026-02-19 · 2 obs

○ 2021-10-22 16:10:42
● 2026-02-19 02:46:24

●NSns3-01.azure-dns.org2026-02-19 → 2026-02-19 · 2 obs

○ 2021-10-22 16:10:42
● 2026-02-19 02:46:24

●NSns4-01.azure-dns.info2026-02-19 → 2026-02-19 · 2 obs

○ 2021-10-22 16:10:42
● 2026-02-19 02:46:24

○NSns9.mydnspt.net2015-07-18 → 2015-07-18 · 3 obs

● 2015-07-18 11:37:46
○ 2015-10-26 18:46:48
○ 2026-02-19 02:46:24

○MXmail.ctsu.pt2015-07-18 → 2016-01-04 · 4 obs

● 2015-07-18 11:37:46
● 2016-01-04 21:57:24
○ 2016-04-28 07:59:14
○ 2026-02-19 02:46:24

●MXmx1.deloittept.c3s2.iphmx.com2016-04-28 → 2026-02-19 · 3 obs

○ 2016-01-04 21:57:24
● 2016-04-28 07:59:14
● 2026-02-19 02:46:24

●MXmx2.deloittept.c3s2.iphmx.com2016-04-28 → 2026-02-19 · 3 obs

○ 2016-01-04 21:57:24
● 2016-04-28 07:59:14
● 2026-02-19 02:46:24

○A54.217.244.2202016-01-04 → 2017-02-21 · 5 obs

○ 2015-10-26 18:46:48
● 2016-01-04 21:57:24
● 2017-02-21 05:30:54
○ 2021-06-26 03:15:48
○ 2026-02-19 02:46:24

○A91.121.87.112015-07-18 → 2015-10-26 · 4 obs

● 2015-07-18 11:37:46
● 2015-10-26 18:46:48
○ 2016-01-04 21:57:24
○ 2026-02-19 02:46:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ctsu.pt	ns4-01.azure-dns.info, ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org	-

✅ Authoritative Response

Server: 208.84.5.1

NS records: ns4-01.azure-dns.info, ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctsu.pt (unsigned zone)

⏱️ Timing

Total: 105ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1-01.azure-dns.com, ns2-01.azure-dns.net...`
MX	2	`mx1.deloittept.c3s2.iphmx.com (pri: 10), mx2.deloittept.c3s2.iphmx.com (pri: 10)`
TXT	5	`v=spf1 a mx exists:%{i}.spf.deloittept.c, MS=ms74450817...`
SOA	1	`ns1-01.azure-dns.com azuredns-hostmaster`

AI analysis

ctsu.pt is delegated to four name servers: ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org.

ctsu.pt at least partially shares name servers with other domains, for instance email.neticonic.com, retreathomestead.com.au, twiflex.com, dcameragroup.com and mindflow.ch.

Host names with two IP numbers:

ns1-01.azure-dns.com points to 2603:1061:0:700::1 and 13.107.236.1; ns4-01.azure-dns.info points to 2620:1ec:bda:700::1 and 208.84.5.1; ns2-01.azure-dns.net points to 2620:1ec:8ec:700::1 and 150.171.21.1; ns3-01.azure-dns.org points to 2a01:111:4000:700::1 and 204.14.183.1.

Two mail servers handle ctsu.pt: mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com.

ctsu.pt shares the same mail server setup as other domains, for instance seara.com, deloitte.pt, deloitte.co.ao, deloitte.co.mz and maksen.com.

ctsu.pt shares some mail servers with other domains, at least partially, for example sgg.pt and weshare.pt.

these mail servers are commonly used with the mail servers atrema.deloitte.com.s200b2.psmtp.com.

Host names with four IP numbers:

The host names mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com point to: 68.232.133.50, 68.232.139.45, 216.71.156.141 and 216.71.158.221.

Host names that point to 68.232.133.50: mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com.

Host names that point to 68.232.139.45: mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com.

Host names that point to 216.71.156.141: mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com.

Host names that point to 216.71.158.221: mx1.deloittept.c3s2.iphmx.com and mx2.deloittept.c3s2.iphmx.com.