🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`web.fc.up.pt`

DNSSEC	⚠️ Not signed
A	193.136.24.105^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
		PTR	`web.fc.up.pt`

`fc.up.pt`

	DNSSEC	⚠️ Not signed
	A	193.137.24.4^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
	NS	`ns1.up.pt` ⭐ ⚠️ Not in parent delegation
	NS	`ns02.fccn.pt` ⚠️ Not in parent delegation
	NS	`ns2.up.pt` ⚠️ Not in parent delegation
	NS	`ns3.up.pt` ⚠️ Not in parent delegation
	NS	`ns4.up.pt` ⚠️ Not in parent delegation
	MX	`mx01.up.pt` ⭐
	MX	`mx02.up.pt` ⭐
	MX	`mx03.up.pt` ⭐
	MX	`mx04.up.pt` ⭐
	MX	`mx05.up.pt` ⭐
	MX	`mx06.up.pt` ⭐
	TXT	`v=spf1 mx ip4:193.136.24.101 ip4:193.136.24.102 ip4:193.136.24.2 ip4:193.136....`
	TXT	`MS=F3BB1441C48E0387BCAC791A5640BDC886612BB4`
	SOA	`ns1.up.pt`it@up.pt serial=1792294985

WOT: SAFE (64/100)
WOT: SAFE (83/100)

PTR for

105.24.136.193.in-addr.arpa

Same first word

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Previous names

Next names

DNS History

1 record (1 active, 0 former)

●A193.136.24.1052013-08-03 → 2026-10-18 · 5 obs

● 2013-08-03 22:51:24
● 2016-02-13 01:24:08
○ 2026-03-21 16:50:40
● 2026-03-26 01:04:52
● 2026-10-18 04:24:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, c.dns.pt, e.dns.pt, ns2.nic.fr...	18 records
up.pt	ns2.up.pt, ns1.up.pt, ns4.up.pt, ns3.up.pt...	10 records

✅ Authoritative Response

Server:193.137.55.32

NS records: ns2.up.pt, ns1.up.pt, ns4.up.pt, ns3.up.pt, ns02.fccn.pt

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1136ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.136.24.105`

📌 Glue Records Collected

Total: 28

In-bailiwick: 22 (a.dns.pt, a.dns.pt, c.dns.pt...)

Out-of-bailiwick: 6 (ns2.nic.fr, ns2.nic.fr, ns.dns.br...)

Analysis

IP Addresses

web.fc.up.pt directs to one IP number, which is 193.136.24.105.

There are other host names — alunos.fc.up.pt among them — that share IP numbers with web.fc.up.pt.

web.fc.up.pt - robtex.com

web.fc.up.pt

fc.up.pt