`bit.up.pt`

DNSSEC	⚠️ Not signed
A	193.137.29.43^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}
		PTR	`aupec.up.pt`
		PTR	`bit.up.pt`
		PTR	`centenario.up.pt`
		PTR	`ciencia20.up.pt`
		PTR	`cnup.up.pt`
		PTR	`daete.up.pt`
		PTR	`ecca2013.up.pt`
		PTR	`elearning04-05.up.pt`
		PTR	`elearning2003.up.pt`
		PTR	`elies2014.up.pt`
		PTR	`equipe.up.pt`
		PTR	`eurocris.up.pt`
		PTR	`flipbook.up.pt`
		PTR	`gadup.up.pt`
		PTR	`icpc2019.up.pt`
		PTR	`inter.up.pt`
		PTR	`internetwork.up.pt`
		PTR	`iobc-oportomeeting.up.pt`
		PTR	`lnivparcerias.up.pt`
		PTR	`neothemi.up.pt`
		PTR	`pnt.up.pt`
		PTR	`portocidaderegiao.up.pt`
		PTR	`ptflora.up.pt`
		PTR	`rnme.up.pt`
		PTR	`rugby2010.up.pt`
		PTR	`sarajevojepii.up.pt`
		PTR	`sopcom2011.up.pt`
		PTR	`taloe.up.pt`
		PTR	`universia.up.pt`
		PTR	`webarq.up.pt`
		PTR	`territoriocasacomum.arq.up.pt`
		PTR	`embryosfates.ispup.up.pt`

`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`
	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	`MS=ms16675765`
	TXT	`google-site-verification=7hF_ZD6DOKHK8MLopRWBZvby2A0gBGVQi-kvLqdkxGo`
	TXT	`google-site-verification=eMy_WDqKW1lght0VDzrPfEFh0osBa3BtcILLuMxX5jI`
	TXT	`adobe-idp-site-verification=491feeefc019f19c6030bf87ace8477470d9a78bb3e660161...`
	TXT	`HARICA-odgH2dLCMNQenduoC39`
	TXT	`OIIBdX0Cy1Ay7dAnhFQmuuqdTwtlthv23weewGfmKBDcfrmo2WOrjGfPx8ZFpan5QNfIvto7Jp/S5...`
	TXT	`v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outloo...`
	SOA	`ns1.up.pt`it@up.pt serial=1774006807

WOT: SAFE (78/100)
rank #3578 globally
rank #3 in the tld
This domain name "up.pt" represents Universidade do Porto, a public university located in Porto, Portugal. It is one of the largest and most prestigious higher education institutions in Portugal. The domain name is used for the university's official website, providing various online services and information for students, faculty, and others interested in the institution.WOT: SAFE (91/100)
📈 Tranco rank: #9,515

PTR for

43.29.137.193.in-addr.arpa

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DNS History

1 record (1 active, 0 former)

●A193.137.29.432026-03-22 → 2026-03-23 · 3 obs

○ 2026-03-05 17:09:36
● 2026-03-22 12:07:58
● 2026-03-23 03:47:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, e.dns.pt, h.dns.pt, c.dns.pt...	-
up.pt	ns1.up.pt, ns2.up.pt, ns3.up.pt, ns4.up.pt...	10 records

✅ Authoritative Response

Server:193.137.55.30

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 944ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.137.29.43`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (ns1.up.pt, ns2.up.pt, ns3.up.pt...)

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

Analysis

IP Addresses

bit.up.pt maps to IP address 193.137.29.43.

Other host names, for instance elearning2003.up.pt, eurocris.up.pt, iobc-oportomeeting.up.pt, flipbook.up.pt and inter.up.pt share IP numbers with bit.up.pt.

bit.up.pt - robtex.com

bit.up.pt

up.pt