ff.up.pt - dns.ninja

`ff.up.pt`

DNSSEC	⚠️ Not signed
A	193.137.55.13^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
		PTR	`www.up.pt`
NS	`ns1.up.pt` ⭐ ⚠️ Not in parent delegation
		A	2001:690:2200:a10::30^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
			PTR	`ns1.up.pt`
		A	193.137.55.30^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`ns1.up.pt`
NS	`ns02.fccn.pt` ⚠️ Not in parent delegation
		A	2001:690:a80:4001::200^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
			PTR	`ns02.fccn.pt`
		A	193.136.2.228^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`ns02.fccn.pt`
NS	`ns2.up.pt` ⚠️ Not in parent delegation
		A	2001:690:2200:a10::31^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.31^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`ns2.up.pt`
NS	`ns3.up.pt` ⚠️ Not in parent delegation
		A	2001:690:2200:a10::32^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.32^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`ns3.up.pt`
NS	`ns4.up.pt` ⚠️ Not in parent delegation
		A	2001:690:2200:a10::33^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.33^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`ns4.up.pt`
MX	`mx01.up.pt` ⭐
		A	2001:690:2200:a10::24^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.24^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
MX	`mx02.up.pt` ⭐
		A	2001:690:2200:a10::25^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
			PTR	`mx02.up.pt`
		A	193.137.55.25^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`mx02.up.pt`
			PTR	`mx02.uporto.dnssec.pt`
MX	`mx03.up.pt` ⭐
		A	2001:690:2200:a10::44^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
			PTR	`mx03.up.pt`
		A	193.137.55.44^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
MX	`mx04.up.pt` ⭐
		A	2001:690:2200:a10::45^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.45^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`mx04.up.pt`
MX	`mx05.up.pt` ⭐
		A	2001:690:2200:a10::46^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.46^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`mx05.up.pt`
MX	`mx06.up.pt` ⭐
		A	2001:690:2200:a10::47^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		A	193.137.55.47^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
			PTR	`mx06.up.pt`
TXT	`v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outloo...`
TXT	`MS=F6B59710C48E3C59806C4ACE1E22F942FE08C3FC`
TXT	`google-site-verification=DWU9-dfA8DrxKWRT7aUlGSJJHD9Uwe6zPxiDlT7VAWU`
TXT	`google-site-verification=Y1c_qB4aQrVyfqwA-TQ7E0ZxX2RHsyMYxINIMJZZg6Y`
SOA	`ns1.up.pt`it@up.pt serial=1784173308

`up.pt`

	DNSSEC	🔒 Signed (DS record present)
	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`
	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	`v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outloo...`
	TXT	`google-site-verification=7hF_ZD6DOKHK8MLopRWBZvby2A0gBGVQi-kvLqdkxGo`
	TXT	`MS=ms16675765`
	TXT	`HARICA-odgH2dLCMNQenduoC39`
	TXT	`OIIBdX0Cy1Ay7dAnhFQmuuqdTwtlthv23weewGfmKBDcfrmo2WOrjGfPx8ZFpan5QNfIvto7Jp/S5...`
	TXT	`adobe-idp-site-verification=491feeefc019f19c6030bf87ace8477470d9a78bb3e660161...`
	TXT	`google-site-verification=eMy_WDqKW1lght0VDzrPfEFh0osBa3BtcILLuMxX5jI`
	SOA	`ns1.up.pt`it@up.pt serial=1784186412

WOT: SAFE (71/100)
rank #3171 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

Subdomains

mailserver.ff.up.pt

qa.ff.up.pt

www.ff.up.pt

Same first word

ff.fyi

ff.io

ff.ca

ff.tn

ff.si

ff.is

ff.net

ff.ru

ff.im

ff.cn

ff.org

ff.fi

ff.nl

ff.nu

ff.media

ff.fo

ff.com.br

ff.ag

ff.biz

ff.co.za

ff.co.uk

ff.net.nz

ff.institute

ff.lv

ff.fm

ff.pl

ff.cm

ff.ac.me

ff.kz

ff.solutions

ff.hk

ff.de

ff.international

ff.com.ua

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ff.tc

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ff.ma

ff.tv

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ff.company

ff.studio

ff.gov.cn

ff.com

ff.chat

ff.life

ff.su

ff.mba

ff.wine

ff.link

ff.spb.ru

ff.cz

ff.org.nz

ff.sd

ff.com.au

ff.eu

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ff.ua

ff.be

ff.gs

ff.baby

ff.co.th

ff.cc

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ff.md

ff.team

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ff.tj

ff.church

ff.fan

ff.world

ff.st

ff.ws

ff.tv.br

ff.se

ff.network

ff.net.au

ff.ee

ff.expert

DNS History

22 records (12 active, 10 former)

○NSdns1.up.pt2015-07-09 → 2015-12-09 · 4 obs

● 2015-07-09 14:32:32
● 2015-12-09 22:18:42
○ 2016-01-31 05:08:18
○ 2026-07-16 07:48:22

○NSdns2.up.pt2015-07-09 → 2015-12-09 · 4 obs

● 2015-07-09 14:32:32
● 2015-12-09 22:18:42
○ 2016-01-31 05:08:18
○ 2026-07-16 07:48:22

○NSdns3.up.pt2015-07-09 → 2015-12-09 · 4 obs

● 2015-07-09 14:32:32
● 2015-12-09 22:18:42
○ 2016-01-31 05:08:18
○ 2026-07-16 07:48:22

○NSdns4.up.pt2015-07-09 → 2015-12-09 · 4 obs

● 2015-07-09 14:32:32
● 2015-12-09 22:18:42
○ 2016-01-31 05:08:18
○ 2026-07-16 07:48:22

●NSns02.fccn.pt2026-02-16 → 2026-07-16 · 6 obs

○ 2016-01-31 05:08:18
● 2026-02-16 12:02:10
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

○NSns1.ff.up.pt2015-07-09 → 2015-12-09 · 4 obs

● 2015-07-09 14:32:32
● 2015-12-09 22:18:42
○ 2016-01-31 05:08:18
○ 2026-07-16 07:48:22

●NSns1.up.pt2016-01-31 → 2026-07-16 · 3 obs

○ 2015-12-09 22:18:42
● 2016-01-31 05:08:18
● 2026-07-16 07:48:22

●NSns2.up.pt2016-01-31 → 2026-07-16 · 6 obs

○ 2015-12-09 22:18:42
● 2016-01-31 05:08:18
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●NSns3.up.pt2016-01-31 → 2026-07-16 · 6 obs

○ 2015-12-09 22:18:42
● 2016-01-31 05:08:18
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●NSns4.up.pt2016-01-31 → 2026-07-16 · 6 obs

○ 2015-12-09 22:18:42
● 2016-01-31 05:08:18
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

○MXmail.up.pt2015-07-09 → 2016-10-30 · 4 obs

● 2015-07-09 14:32:32
● 2016-10-30 08:07:10
○ 2021-04-09 10:11:12
○ 2026-07-16 07:48:22

●MXmx01.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●MXmx02.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●MXmx03.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●MXmx04.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●MXmx05.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

●MXmx06.up.pt2021-04-09 → 2026-07-16 · 6 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

○MXrelay.ff.up.pt2015-09-29 → 2016-10-30 · 5 obs

○ 2015-07-09 14:32:32
● 2015-09-29 14:10:26
● 2016-10-30 08:07:10
○ 2021-04-09 10:11:12
○ 2026-07-16 07:48:22

○MXsmtp.ff.up.pt2015-07-09 → 2015-07-09 · 3 obs

● 2015-07-09 14:32:32
○ 2015-09-29 14:10:26
○ 2026-07-16 07:48:22

○A193.136.26.1522015-07-09 → 2016-10-30 · 4 obs

● 2015-07-09 14:32:32
● 2016-10-30 08:07:10
○ 2021-04-09 10:11:12
○ 2026-07-16 07:48:22

○A193.136.36.1292021-04-09 → 2021-04-09 · 4 obs

○ 2016-10-30 08:07:10
● 2021-04-09 10:11:12
○ 2026-02-16 12:02:10
○ 2026-07-16 07:48:22

●A193.137.55.132026-02-16 → 2026-07-16 · 6 obs

○ 2021-04-09 10:11:12
● 2026-02-16 12:02:10
● 2026-03-27 04:13:00
○ 2026-03-29 11:36:16
● 2026-04-05 12:44:16
● 2026-07-16 07:48:22

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:193.137.55.32

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 972ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.137.55.13`
NS	5	`ns1.up.pt, ns3.up.pt...`
MX	6	`mx04.up.pt (pri: 10), mx05.up.pt (pri: 10)...`
TXT	4	`MS=F6B59710C48E3C59806C4ACE1E22F942FE08C, v=spf1 mx include:spf4.up.pt include:spf...`
SOA	1	`ns1.up.pt it.up.pt`

📌 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

Hierarchy

The domain ff.up.pt is parent to mailserver.ff.up.pt, qa.ff.up.pt and www.ff.up.pt.

IP Addresses

ff.up.pt resolves to just one IP address, 193.137.55.13.

Two other host names, along with www.reit.up.pt, arq.up.pt and icbas.up.pt, also share IP numbers with ff.up.pt.

Name Servers

ff.up.pt delegates to five name servers: ns02.fccn.pt, ns1.up.pt, ns2.up.pt and two others.

At least some of ff.up.pt's name servers are shared with other domains, for example 0-27.95.137.193.in-addr.arpa, iscte-iul.pt, up.edu.pt and two more.

These name servers tend to co-occur with ns3.up.pt, ns4.up.pt, ns03.fccn.pt and 7 other name servers in the same DNS delegations.

Host names that have two IP addresses:

ns02.fccn.pt directs traffic to 193.136.2.228 and 2001:690:a80:4001::200.

ns1.up.pt directs traffic to 193.137.55.30 and 2001:690:2200:a10::30.

ns2.up.pt directs traffic to 193.137.55.31 and 2001:690:2200:a10::31.

ns3.up.pt directs traffic to 193.137.55.32 and 2001:690:2200:a10::32.

ns4.up.pt directs traffic to 193.137.55.33 and 2001:690:2200:a10::33.

Mail Servers

ff.up.pt uses 6 mail servers for delivery: mx01.up.pt, mx02.up.pt, mx03.up.pt and 3 other.

There is at least a partial MX overlap between ff.up.pt and other domains, including fba.up.pt, cipes.up.pt, ktforce.up.pt and two others.

It is common to see these mail servers combined with the mail servers mx04.up.pt, mx05.up.pt and mx06.up.pt.

Host names that have two IP addresses:

mx01.up.pt directs traffic to 193.137.55.24 and 2001:690:2200:a10::24.

mx02.up.pt directs traffic to 193.137.55.25 and 2001:690:2200:a10::25.

mx03.up.pt directs traffic to 193.137.55.44 and 2001:690:2200:a10::44.

mx04.up.pt directs traffic to 193.137.55.45 and 2001:690:2200:a10::45.

mx05.up.pt directs traffic to 193.137.55.46 and 2001:690:2200:a10::46.

mx06.up.pt directs traffic to 193.137.55.47 and 2001:690:2200:a10::47.