mx03.up.pt - dns.ninja

`mx03.up.pt`

	DNSSEC	⚠️ Not signed
	A	2001:690:2200:a10::44^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
	A	193.137.55.44^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}

`up.pt`

	DNSSEC	⚠️ Not signed
	A	2001:690:2200:a10::13^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
	A	193.137.55.13^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
	NS	`ns1.up.pt` ⭐
	NS	`ns02.fccn.pt` ⚠️ Not in parent delegation
	NS	`ns2.up.pt`
	NS	`ns3.up.pt`
	NS	`ns4.up.pt`
	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	`OIIBdX0Cy1Ay7dAnhFQmuuqdTwtlthv23weewGfmKBDcfrmo2WOrjGfPx8ZFpan5QNfIvto7Jp/S5...`
	TXT	`adobe-idp-site-verification=491feeefc019f19c6030bf87ace8477470d9a78bb3e660161...`
	TXT	`google-site-verification=eMy_WDqKW1lght0VDzrPfEFh0osBa3BtcILLuMxX5jI`
	TXT	`HARICA-odgH2dLCMNQenduoC39`
	TXT	`google-site-verification=7hF_ZD6DOKHK8MLopRWBZvby2A0gBGVQi-kvLqdkxGo`
	TXT	`v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outloo...`
	TXT	`MS=ms16675765`
	SOA	`ns1.up.pt`it@up.pt serial=1784173779

WOT: UNKNOWN (78/100)
rank #3188 globally
rank #3 in the tld

up.pt

up.ptis the official domain of the Universidade do Porto (University of Porto), one of the largest and most prestigious public universities in Portugal. It is operated by the university itself, headquartered in Porto, Portugal.

Key facts

Owner / operator: Universidade do Porto (University of Porto)
TLD:.pt— Portugal (ccTLD)
Primary purpose: Official university web presence, academic services, and institutional information
Status: active

Notable subdomains or services

The university usesup.ptas the root for a large number of faculty, service, and portal subdomains:

sigarra.up.pt— main academic information and student/staff portal (SIGARRA system)
fe.up.pt— Faculty of Engineering (FEUP), the largest faculty
fc.up.pt— Faculty of Sciences
fl.up.pt— Faculty of Arts and Humanities
moodle.up.pt— e-learning platform
repositorio-aberto.up.pt— open-access institutional repository

Related domains

uporto.eu— secondary institutional domain sometimes used for international-facing communications

WOT: SAFE (91/100)
📈 Tranco rank: #6,419

PTR for

44.55.137.193.in-addr.arpa

MX for

arq.up.pt

fc.up.pt

icbas.up.pt

fep.up.pt

ccre.arq.up.pt

reit.up.pt

labiomep.up.pt

ff.up.pt

neb.up.pt

loja.up.pt

up.pt

letras.up.pt

fba.up.pt

cipes.up.pt

ktforce.up.pt

alunos.fc.up.pt

ciencia20.up.pt

fe.up.pt

c3p.up.pt

planetario.up.pt

uporto.pt

cdup.up.pt

jpn.up.pt

sdd.up.pt

orfeao.up.pt

uptec.up.pt

clup.up.pt

fade.up.pt

aaoup.up.pt

ciamh.up.pt

ijup.up.pt

fcna.up.pt

fpce.up.pt

mhnc.up.pt

atg.up.pt

direito.up.pt

med.up.pt

lists.med.up.pt

cedup.up.pt

cemup.up.pt

fmd.up.pt

ispup.up.pt

sas.up.pt

territoriocasacomum.arq.up.pt

fa.up.pt

iceta.up.pt

cibio.up.pt

Previously MX for

tv.up.pt

cetac.up.pt

ian-af.up.pt

mil.up.pt

Same first word

mx03.ru

mx03.kinghost.net

mx03.org

mx03.com

Similar names

30xm.com

mx30.de

30mx.com

03xm.com

xm30.com

x3m0.com

xm03.com

mx30.dk

mx30.com

m30x.com

mx30.net

DNS History

2 records (2 active, 0 former)

●A193.137.55.442016-09-24 → 2026-07-16 · 312 obs

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●A2001:690:2200:a10::442016-09-24 → 2026-07-16 · 322 obs

● 2016-09-24 07:32:34
● 2026-02-16 14:00:58
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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	e.dns.pt, c.dns.pt, h.dns.pt, b.dns.pt...	-
up.pt	ns3.up.pt, ns02.fccn.pt, ns4.up.pt, ns2.up.pt...	10 records

✅ Authoritative Response

Server:193.137.55.30

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 906ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.137.55.44`
AAAA	1	`2001:690:2200:a10::44`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (ns4.up.pt, ns3.up.pt, ns2.up.pt...)

Out-of-bailiwick: 2 (ns02.fccn.pt, ns02.fccn.pt)

Analysis

Mail Server Role

The domains arq.up.pt, fc.up.pt, icbas.up.pt, fep.up.pt, ccre.arq.up.pt and a few others have mx03.up.pt as their mail server.

mx02.up.pt, mx04.up.pt and mx01.up.pt are often deployed as mail servers in conjunction with mx03.up.pt.

IP Addresses

mx03.up.pt has two IP addresses: 193.137.55.44 and 2001:690:2200:a10::44