mx04.up.pt - dns.ninja

`mx04.up.pt`

DNSSEC	⚠️ Not signed
A	2001:690:2200:a10::45^{🇵🇹 RCCN2001:690::/32 The Portuguese National Research & Education Network}
		PTR	`mx04.up.pt`
A	193.137.55.45^{🇵🇹 RCCN193.136.0.0/15 -AGGREGATED-NET}

`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	`google-site-verification=eMy_WDqKW1lght0VDzrPfEFh0osBa3BtcILLuMxX5jI`
	TXT	`google-site-verification=7hF_ZD6DOKHK8MLopRWBZvby2A0gBGVQi-kvLqdkxGo`
	TXT	`adobe-idp-site-verification=491feeefc019f19c6030bf87ace8477470d9a78bb3e660161...`
	TXT	`HARICA-odgH2dLCMNQenduoC39`
	TXT	`OIIBdX0Cy1Ay7dAnhFQmuuqdTwtlthv23weewGfmKBDcfrmo2WOrjGfPx8ZFpan5QNfIvto7Jp/S5...`
	TXT	`MS=ms16675765`
	TXT	`v=spf1 mx include:spf4.up.pt include:spf6.up.pt include:spf.protection.outloo...`
	SOA	`ns1.up.pt`it@up.pt serial=1786100683

WOT: SAFE (78/100)
rank #3226 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: #6,117

PTR for

45.55.137.193.in-addr.arpa

5.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.a.0.0.0.2.2.0.9.6.0.1.0.0.2.ip6.arpa

MX for

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

fa.up.pt

iceta.up.pt

cibio.up.pt

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

Previously MX for

ian-af.up.pt

mil.up.pt

tv.up.pt

cetac.up.pt

Same first word

mx04.com

mx04.canva-apps.cn

mx04.kinghost.net

Similar names

04mx.com

mx40.org

xm40.com

mx40.co.za

04xm.com

DNS History

2 records (2 active, 0 former)

●A193.137.55.452016-09-24 → 2026-08-07 · 358 obs

● 2016-09-24 07:32:34
● 2026-02-17 09:46:36
○ 2026-02-17 11:36:56
● 2026-02-17 13:24:38
● 2026-02-17 14:22:18
○ 2026-02-17 15:08:42
○ 2026-02-17 17:02:26
● 2026-02-17 19:18:20
○ 2026-02-17 21:09:54
○ 2026-02-17 22:56:54
● 2026-02-18 01:05:56
● 2026-02-18 07:57:40
○ 2026-02-18 11:44:08
● 2026-02-18 13:55:46
○ 2026-02-18 15:23:10
● 2026-02-18 16:42:26
● 2026-02-18 19:52:00
○ 2026-02-18 23:49:42
● 2026-02-19 00:30:02
● 2026-02-19 08:24:32
○ 2026-02-19 09:07:36
● 2026-02-19 09:56:26
○ 2026-02-19 10:38:32
● 2026-02-19 11:09:44
○ 2026-02-19 11:43:08
● 2026-02-19 21:35:36
● 2026-02-20 12:18:24
○ 2026-02-20 14:06:10
● 2026-02-20 15:52:42
○ 2026-02-20 17:03:48
○ 2026-02-20 19:29:24
● 2026-02-20 22:52:28
● 2026-02-21 10:32:04
○ 2026-02-21 16:08:24
● 2026-02-21 19:31:24
○ 2026-02-21 23:36:04
○ 2026-02-22 00:24:06
● 2026-02-22 01:23:32
○ 2026-02-22 02:25:16
● 2026-02-22 03:37:44
● 2026-02-22 07:11:12
○ 2026-02-22 09:10:30
● 2026-02-22 14:55:20
○ 2026-02-22 16:41:36
● 2026-02-23 00:36:02
● 2026-02-23 01:16:08
○ 2026-02-23 04:09:40
● 2026-02-23 05:29:38
○ 2026-02-23 09:24:04
● 2026-02-23 10:43:02
○ 2026-02-23 11:53:34
● 2026-02-23 14:38:00
● 2026-02-23 15:53:36
○ 2026-02-23 16:49:52
● 2026-02-23 23:22:18
● 2026-02-24 03:45:30
○ 2026-02-24 05:32:20
● 2026-02-24 07:39:00
○ 2026-02-24 10:40:16
○ 2026-02-24 11:34:46
● 2026-02-24 15:25:34
● 2026-02-24 16:58:42
○ 2026-02-24 19:20:20
○ 2026-02-25 01:29:44
● 2026-02-25 02:39:50
● 2026-02-25 04:02:14
○ 2026-02-25 15:56:04
● 2026-02-25 16:28:36
● 2026-02-26 00:21:40
○ 2026-02-26 01:45:48
● 2026-02-26 04:20:18
● 2026-02-26 13:23:06
○ 2026-02-26 17:55:26
○ 2026-02-27 03:33:44
● 2026-02-27 09:31:48
○ 2026-02-27 12:03:50
● 2026-02-27 15:25:42
○ 2026-02-27 17:07:52
● 2026-02-27 21:31:10
○ 2026-02-27 23:58:40
○ 2026-02-28 06:14:48
● 2026-02-28 07:27:12
○ 2026-02-28 18:09:14
● 2026-02-28 20:15:00
○ 2026-02-28 21:45:50
○ 2026-02-28 23:28:20
● 2026-03-01 01:45:12
○ 2026-03-01 08:43:26
○ 2026-03-01 12:01:52
● 2026-03-01 14:41:26
● 2026-03-01 21:24:02
○ 2026-03-01 22:22:40
○ 2026-03-02 08:51:12
● 2026-03-02 15:27:24
● 2026-03-03 00:21:50
○ 2026-03-03 04:32:12
○ 2026-03-03 16:36:18
● 2026-03-03 18:37:08
○ 2026-03-03 22:13:08
○ 2026-03-04 00:51:58
● 2026-03-04 01:44:26
● 2026-03-04 21:17:38
○ 2026-03-04 23:48:00
○ 2026-03-05 01:43:08
● 2026-03-05 05:25:12
● 2026-03-05 11:27:58
○ 2026-03-05 20:08:14
● 2026-03-05 22:27:42
● 2026-03-06 00:08:32
○ 2026-03-06 01:52:10
○ 2026-03-06 04:54:28
● 2026-03-06 06:09:42
● 2026-03-06 09:02:32
○ 2026-03-06 10:09:18
● 2026-03-06 11:28:00
○ 2026-03-06 18:07:04
● 2026-03-06 20:38:32
● 2026-03-07 02:14:06
○ 2026-03-07 09:07:18
● 2026-03-07 10:43:02
● 2026-03-07 17:39:12
○ 2026-03-07 20:27:30
● 2026-03-07 22:56:02
○ 2026-03-08 01:20:46
● 2026-03-08 02:27:40
○ 2026-03-08 04:45:06
○ 2026-03-08 13:25:06
● 2026-03-08 15:57:14
● 2026-03-09 10:27:20
○ 2026-03-09 15:18:46
○ 2026-03-09 23:26:10
● 2026-03-10 01:50:36
○ 2026-03-10 03:05:36
● 2026-03-10 05:44:46
○ 2026-03-10 07:03:54
○ 2026-03-10 17:14:28
● 2026-03-10 18:36:58
● 2026-03-11 00:58:06
○ 2026-03-11 04:30:22
● 2026-03-11 05:58:28
● 2026-03-11 10:03:06
○ 2026-03-11 22:11:58
● 2026-03-12 01:07:28
● 2026-03-12 07:56:26
○ 2026-03-12 09:17:34
● 2026-03-12 10:06:38
● 2026-03-12 21:17:08
○ 2026-03-12 21:49:40
● 2026-03-13 00:11:16
○ 2026-03-13 08:03:12
○ 2026-03-13 08:38:42
● 2026-03-13 17:48:48
○ 2026-03-13 22:44:06
● 2026-03-14 00:50:46
● 2026-03-14 08:12:38
○ 2026-03-14 08:49:12
● 2026-03-14 11:16:36
● 2026-03-14 23:17:46
○ 2026-03-15 01:15:36
● 2026-03-15 02:16:58
● 2026-03-15 19:09:06
○ 2026-03-16 01:36:28
○ 2026-03-16 08:05:52
● 2026-03-16 09:05:36
● 2026-03-17 09:49:22
○ 2026-03-17 11:35:54
○ 2026-03-17 14:22:28
● 2026-03-17 15:20:30
● 2026-03-17 20:27:06
○ 2026-03-18 07:07:30
● 2026-03-18 07:45:10
○ 2026-03-18 08:46:02
○ 2026-03-18 14:40:56
● 2026-03-18 16:06:24
○ 2026-03-18 17:14:36
● 2026-03-18 17:52:10
○ 2026-03-18 18:49:42
● 2026-03-18 19:32:12
● 2026-03-19 06:16:56
○ 2026-03-19 07:25:52
● 2026-03-19 08:32:42
● 2026-03-19 10:37:22
○ 2026-03-19 14:18:36
● 2026-03-19 15:18:18
● 2026-03-19 19:34:52
○ 2026-03-19 23:35:16
● 2026-03-20 00:13:50
● 2026-03-20 12:57:28
○ 2026-03-20 15:38:26
● 2026-03-21 02:46:04
○ 2026-03-21 06:50:04
○ 2026-03-21 11:57:22
● 2026-03-21 13:23:30
● 2026-03-21 13:57:02
○ 2026-03-21 16:50:42
○ 2026-03-21 21:29:42
● 2026-03-21 22:29:44
● 2026-03-22 00:57:12
○ 2026-03-22 04:44:00
○ 2026-03-22 16:31:18
● 2026-03-22 17:27:14
● 2026-03-23 03:26:06
○ 2026-03-23 07:19:32
○ 2026-03-23 08:45:06
● 2026-03-23 10:30:48
○ 2026-03-23 11:17:46
● 2026-03-23 12:32:08
● 2026-03-23 13:21:04
○ 2026-03-23 14:12:24
○ 2026-03-23 17:23:42
● 2026-03-23 18:08:24
○ 2026-03-23 18:46:18
○ 2026-03-23 20:26:38
● 2026-03-23 21:49:54
● 2026-03-24 07:30:26
○ 2026-03-24 08:49:30
● 2026-03-24 13:01:34
● 2026-03-24 19:30:50
○ 2026-03-24 20:02:16
● 2026-03-24 20:46:58
● 2026-03-24 23:42:34
○ 2026-03-25 00:42:56
○ 2026-03-25 01:31:52
● 2026-03-25 03:11:34
○ 2026-03-25 04:56:06
● 2026-03-25 05:39:10
● 2026-03-25 15:47:48
○ 2026-03-25 16:29:08
● 2026-03-25 17:23:34
● 2026-03-25 18:26:38
○ 2026-03-25 19:10:02
● 2026-03-25 20:33:42
○ 2026-03-25 21:15:38
● 2026-03-25 22:08:32
○ 2026-03-25 23:30:54
○ 2026-03-26 00:48:24
● 2026-03-26 01:43:12
○ 2026-03-26 02:46:20
● 2026-03-26 03:45:08
● 2026-03-26 14:01:06
○ 2026-03-26 14:38:50
○ 2026-03-26 15:15:38
● 2026-03-26 18:06:38
● 2026-03-26 19:33:10
○ 2026-03-26 21:07:06
● 2026-03-26 21:43:08
○ 2026-03-26 22:38:12
○ 2026-03-27 01:22:20
● 2026-03-27 04:12:34
● 2026-03-27 20:43:26
○ 2026-03-27 21:25:52
○ 2026-03-28 00:04:28
● 2026-03-28 02:12:40
● 2026-03-28 03:12:34
○ 2026-03-28 04:40:06
● 2026-03-28 06:03:26
○ 2026-03-28 08:56:46
● 2026-03-28 09:47:02
● 2026-03-28 15:18:36
○ 2026-03-28 17:42:42
● 2026-03-28 20:08:02
● 2026-03-28 20:42:38
○ 2026-03-28 22:19:04
● 2026-03-29 00:19:36
● 2026-03-29 01:49:50
○ 2026-03-29 02:46:02
● 2026-03-29 07:21:12
○ 2026-03-29 09:44:02
● 2026-03-29 12:18:32
● 2026-03-29 13:41:08
○ 2026-03-29 14:55:40
● 2026-03-29 16:16:20
● 2026-03-29 21:15:02
○ 2026-03-29 22:17:34
○ 2026-03-30 02:06:56
● 2026-03-30 03:02:36
○ 2026-03-30 03:38:36
● 2026-03-30 04:31:06
● 2026-03-30 05:15:40
○ 2026-03-30 10:36:28
● 2026-03-30 11:15:38
● 2026-03-30 18:59:34
○ 2026-03-30 20:16:30
● 2026-03-30 20:53:42
● 2026-03-31 04:22:08
○ 2026-03-31 05:08:34
● 2026-03-31 06:03:02
○ 2026-03-31 06:36:00
● 2026-03-31 08:07:02
● 2026-03-31 10:53:06
○ 2026-03-31 12:06:30
○ 2026-03-31 22:26:52
● 2026-03-31 22:58:28
● 2026-04-01 05:02:12
○ 2026-04-01 06:22:10
● 2026-04-01 12:09:42
● 2026-04-01 20:24:46
○ 2026-04-01 22:01:06
● 2026-04-01 23:56:46
● 2026-04-02 04:28:52
○ 2026-04-02 10:28:12
○ 2026-04-02 12:45:00
● 2026-04-02 14:01:44
● 2026-04-02 16:29:46
○ 2026-04-02 18:00:10
● 2026-04-02 18:50:30
● 2026-04-03 09:28:34
○ 2026-04-03 12:21:56
● 2026-04-03 14:39:02
○ 2026-04-03 15:39:00
● 2026-04-03 17:08:36
● 2026-04-03 21:03:38
○ 2026-04-04 00:15:04
● 2026-04-04 01:22:40
● 2026-04-04 03:10:42
○ 2026-04-04 07:20:52
● 2026-04-04 08:32:14
● 2026-04-04 09:46:10
○ 2026-04-04 11:21:38
○ 2026-04-04 13:37:10
● 2026-04-04 14:26:14
● 2026-04-18 09:00:08
○ 2026-04-18 10:29:26
○ 2026-04-18 17:01:44
● 2026-04-18 17:38:48
● 2026-05-04 16:12:02
○ 2026-05-04 20:33:22
● 2026-05-04 22:49:50
● 2026-06-07 04:32:00
○ 2026-06-07 05:55:32
● 2026-06-07 10:03:30
○ 2026-06-07 20:07:20
● 2026-06-07 20:41:34
○ 2026-06-08 01:50:06
● 2026-06-08 03:36:26
● 2026-06-08 06:36:06
○ 2026-06-08 07:32:20
● 2026-06-08 09:03:12
● 2026-06-15 04:02:08
○ 2026-06-15 05:30:50
● 2026-06-15 10:22:46
● 2026-06-15 11:03:26
○ 2026-06-15 11:54:22
○ 2026-06-15 12:33:08
● 2026-06-15 14:42:42
○ 2026-06-25 00:47:26
● 2026-06-25 03:31:36
○ 2026-06-28 21:03:50
● 2026-06-29 05:46:58
○ 2026-07-18 23:57:18
● 2026-07-19 01:49:34
○ 2026-07-19 13:42:46
● 2026-07-19 19:43:32
○ 2026-07-23 04:11:46
● 2026-07-23 05:13:52
○ 2026-08-04 06:00:44
● 2026-08-04 06:55:36
● 2026-08-07 13:34:08

●A2001:690:2200:a10::452016-09-24 → 2026-08-07 · 376 obs

● 2016-09-24 07:32:34
● 2026-02-15 18:33:38
○ 2026-02-15 20:43:08
○ 2026-02-15 22:53:26
● 2026-02-15 23:35:42
● 2026-02-16 06:37:16
○ 2026-02-16 08:57:30
● 2026-02-16 09:36:10
● 2026-02-16 10:14:08
○ 2026-02-16 11:36:00
● 2026-02-16 13:02:26
● 2026-02-16 14:01:40
○ 2026-02-16 16:06:06
● 2026-02-16 22:35:36
○ 2026-02-16 23:42:00
○ 2026-02-17 04:32:58
● 2026-02-17 07:53:08
● 2026-02-17 09:46:36
○ 2026-02-17 11:36:56
● 2026-02-17 13:24:38
● 2026-02-17 14:22:18
○ 2026-02-17 15:08:42
○ 2026-02-17 17:02:26
● 2026-02-17 19:18:20
○ 2026-02-17 21:09:54
● 2026-02-17 22:56:54
○ 2026-02-18 01:05:56
● 2026-02-18 04:21:24
● 2026-02-18 07:57:40
○ 2026-02-18 11:44:08
● 2026-02-18 13:55:46
○ 2026-02-18 15:23:10
● 2026-02-18 16:42:26
● 2026-02-18 19:52:00
○ 2026-02-18 23:49:42
● 2026-02-19 00:30:02
● 2026-02-19 08:24:32
○ 2026-02-19 09:07:36
● 2026-02-19 09:56:26
● 2026-02-19 11:09:44
○ 2026-02-19 11:43:08
● 2026-02-19 21:35:36
● 2026-02-20 12:18:24
○ 2026-02-20 14:06:10
● 2026-02-20 15:52:42
○ 2026-02-20 17:03:48
○ 2026-02-20 19:29:24
● 2026-02-20 22:52:28
○ 2026-02-21 01:11:52
● 2026-02-21 10:32:04
○ 2026-02-21 16:08:24
● 2026-02-21 19:31:24
● 2026-02-21 23:36:04
○ 2026-02-22 00:24:06
● 2026-02-22 01:23:32
○ 2026-02-22 02:25:16
● 2026-02-22 03:37:44
○ 2026-02-22 07:11:12
○ 2026-02-22 09:10:30
● 2026-02-22 14:55:20
○ 2026-02-22 16:41:36
● 2026-02-23 00:36:02
● 2026-02-23 01:16:08
○ 2026-02-23 04:09:40
● 2026-02-23 05:29:38
○ 2026-02-23 09:24:04
● 2026-02-23 10:43:02
● 2026-02-23 15:53:36
○ 2026-02-23 16:49:52
● 2026-02-23 23:22:18
● 2026-02-24 03:45:30
○ 2026-02-24 05:32:20
● 2026-02-24 07:39:00
○ 2026-02-24 10:40:16
○ 2026-02-24 11:34:46
● 2026-02-24 15:25:34
● 2026-02-24 19:20:20
○ 2026-02-25 00:09:38
○ 2026-02-25 01:29:44
● 2026-02-25 02:39:50
● 2026-02-25 04:02:14
○ 2026-02-25 15:56:04
● 2026-02-25 16:28:36
● 2026-02-25 21:23:20
○ 2026-02-25 22:38:30
● 2026-02-26 00:21:40
○ 2026-02-26 01:45:48
● 2026-02-26 04:20:18
● 2026-02-26 13:23:06
○ 2026-02-26 17:55:26
○ 2026-02-27 03:33:44
● 2026-02-27 09:31:48
● 2026-02-27 15:25:42
○ 2026-02-27 17:07:52
● 2026-02-27 21:31:10
● 2026-02-28 04:42:38
○ 2026-02-28 06:14:48
● 2026-02-28 07:27:12
○ 2026-02-28 18:09:14
● 2026-02-28 20:15:00
● 2026-02-28 21:45:50
○ 2026-02-28 23:28:20
● 2026-03-01 01:45:12
○ 2026-03-01 08:43:26
● 2026-03-01 12:01:52
● 2026-03-01 21:24:02
○ 2026-03-01 22:22:40
○ 2026-03-02 08:51:12
● 2026-03-02 15:27:24
○ 2026-03-02 19:14:12
● 2026-03-02 22:25:08
● 2026-03-03 00:21:50
○ 2026-03-03 04:32:12
○ 2026-03-03 07:59:40
● 2026-03-03 12:08:40
○ 2026-03-03 16:36:18
○ 2026-03-03 22:13:08
● 2026-03-03 23:14:00
○ 2026-03-04 00:51:58
● 2026-03-04 01:44:26
● 2026-03-04 21:17:38
○ 2026-03-04 23:48:00
○ 2026-03-05 20:08:14
● 2026-03-05 22:27:42
● 2026-03-06 00:08:32
○ 2026-03-06 01:52:10
○ 2026-03-06 06:09:42
● 2026-03-06 07:24:22
● 2026-03-06 09:02:32
○ 2026-03-06 10:09:18
● 2026-03-06 11:28:00
○ 2026-03-06 18:07:04
● 2026-03-06 20:38:32
● 2026-03-07 02:14:06
○ 2026-03-07 09:07:18
● 2026-03-07 10:43:02
● 2026-03-07 17:39:12
○ 2026-03-07 20:27:30
● 2026-03-07 22:56:02
○ 2026-03-08 01:20:46
● 2026-03-08 02:27:40
○ 2026-03-08 04:45:06
○ 2026-03-08 13:25:06
● 2026-03-08 15:57:14
● 2026-03-09 10:27:20
○ 2026-03-09 15:18:46
○ 2026-03-09 23:26:10
● 2026-03-10 01:50:36
○ 2026-03-10 03:05:36
● 2026-03-10 05:44:46
○ 2026-03-10 07:03:54
● 2026-03-10 09:03:50
● 2026-03-10 18:36:58
○ 2026-03-11 00:58:06
○ 2026-03-11 04:30:22
● 2026-03-11 05:58:28
● 2026-03-11 10:03:06
○ 2026-03-11 22:11:58
● 2026-03-12 01:07:28
● 2026-03-12 07:56:26
○ 2026-03-12 09:17:34
● 2026-03-12 10:06:38
● 2026-03-12 21:17:08
○ 2026-03-12 21:49:40
● 2026-03-13 00:11:16
○ 2026-03-13 08:03:12
○ 2026-03-13 08:38:42
● 2026-03-13 17:48:48
● 2026-03-14 08:12:38
○ 2026-03-14 08:49:12
● 2026-03-14 11:16:36
● 2026-03-14 23:17:46
○ 2026-03-15 01:15:36
● 2026-03-15 02:16:58
● 2026-03-15 06:36:26
○ 2026-03-15 08:33:20
● 2026-03-15 19:09:06
○ 2026-03-16 01:36:28
○ 2026-03-16 08:05:52
● 2026-03-16 09:05:36
● 2026-03-16 13:34:20
○ 2026-03-16 23:26:58
● 2026-03-17 05:08:56
● 2026-03-17 09:49:22
○ 2026-03-17 11:35:54
○ 2026-03-17 14:22:28
● 2026-03-17 15:20:30
● 2026-03-17 20:27:06
○ 2026-03-18 07:07:30
● 2026-03-18 07:45:10
● 2026-03-18 08:46:02
○ 2026-03-18 09:49:10
○ 2026-03-18 14:40:56
● 2026-03-18 16:06:24
○ 2026-03-18 17:14:36
● 2026-03-18 17:52:10
○ 2026-03-18 18:49:42
● 2026-03-18 19:32:12
● 2026-03-18 23:48:28
○ 2026-03-19 01:55:06
● 2026-03-19 06:16:56
● 2026-03-19 10:37:22
○ 2026-03-19 14:18:36
● 2026-03-19 15:18:18
● 2026-03-19 19:34:52
○ 2026-03-19 23:35:16
● 2026-03-20 00:13:50
● 2026-03-20 12:57:28
○ 2026-03-20 15:38:26
● 2026-03-21 02:46:04
○ 2026-03-21 06:50:04
○ 2026-03-21 11:57:22
● 2026-03-21 13:23:30
● 2026-03-21 13:57:02
○ 2026-03-21 16:50:42
○ 2026-03-21 21:29:42
● 2026-03-21 22:29:44
● 2026-03-23 03:26:06
○ 2026-03-23 07:19:32
○ 2026-03-23 08:45:06
● 2026-03-23 10:30:48
○ 2026-03-23 11:17:46
● 2026-03-23 12:32:08
● 2026-03-23 18:08:24
○ 2026-03-23 18:46:18
○ 2026-03-23 20:26:38
● 2026-03-23 21:49:54
● 2026-03-24 07:30:26
○ 2026-03-24 08:49:30
● 2026-03-24 13:01:34
● 2026-03-25 00:42:56
○ 2026-03-25 01:31:52
○ 2026-03-25 04:56:06
● 2026-03-25 05:39:10
○ 2026-03-25 06:22:28
● 2026-03-25 11:53:48
● 2026-03-25 13:29:34
○ 2026-03-25 15:47:48
● 2026-03-25 16:29:08
● 2026-03-25 18:26:38
○ 2026-03-25 19:10:02
● 2026-03-25 20:33:42
● 2026-03-25 22:08:32
○ 2026-03-25 23:30:54
○ 2026-03-26 00:48:24
● 2026-03-26 01:43:12
○ 2026-03-26 02:46:20
● 2026-03-26 03:45:08
● 2026-03-26 04:39:38
○ 2026-03-26 05:54:46
● 2026-03-26 08:12:04
● 2026-03-26 14:01:06
○ 2026-03-26 14:38:50
○ 2026-03-26 15:15:38
● 2026-03-26 18:06:38
● 2026-03-26 19:33:10
○ 2026-03-26 21:07:06
○ 2026-03-27 01:22:20
● 2026-03-27 04:12:34
○ 2026-03-27 05:15:18
● 2026-03-27 08:36:06
● 2026-03-27 20:43:26
○ 2026-03-27 21:25:52
○ 2026-03-28 00:04:28
● 2026-03-28 02:12:40
○ 2026-03-28 03:12:34
○ 2026-03-28 04:40:06
● 2026-03-28 06:03:26
● 2026-03-28 09:47:02
○ 2026-03-28 11:09:12
● 2026-03-28 12:54:02
● 2026-03-28 15:18:36
○ 2026-03-28 17:42:42
● 2026-03-28 20:08:02
● 2026-03-28 20:42:38
○ 2026-03-28 22:19:04
● 2026-03-29 00:19:36
● 2026-03-29 01:49:50
○ 2026-03-29 02:46:02
● 2026-03-29 07:21:12
○ 2026-03-29 09:44:02
● 2026-03-29 12:18:32
● 2026-03-29 13:41:08
○ 2026-03-29 14:55:40
○ 2026-03-29 16:16:20
● 2026-03-29 19:05:04
● 2026-03-29 21:15:02
○ 2026-03-29 22:17:34
○ 2026-03-29 23:14:42
● 2026-03-30 02:06:56
● 2026-03-30 03:02:36
○ 2026-03-30 03:38:36
● 2026-03-30 04:31:06
● 2026-03-30 05:15:40
○ 2026-03-30 10:36:28
○ 2026-03-30 11:15:38
● 2026-03-30 14:09:42
● 2026-03-30 18:59:34
○ 2026-03-30 20:16:30
○ 2026-03-30 20:53:42
● 2026-03-31 01:45:38
● 2026-03-31 03:40:14
○ 2026-03-31 04:22:08
○ 2026-03-31 05:08:34
● 2026-03-31 06:03:02
○ 2026-03-31 06:36:00
○ 2026-03-31 08:07:02
● 2026-03-31 09:25:56
● 2026-03-31 22:26:52
○ 2026-03-31 22:58:28
● 2026-04-01 01:49:36
● 2026-04-01 05:02:12
○ 2026-04-01 06:22:10
● 2026-04-01 12:09:42
● 2026-04-01 20:24:46
○ 2026-04-01 22:01:06
● 2026-04-01 23:56:46
● 2026-04-02 10:28:12
○ 2026-04-02 12:45:00
● 2026-04-02 14:01:44
● 2026-04-02 16:29:46
○ 2026-04-02 18:00:10
● 2026-04-02 18:50:30
● 2026-04-03 09:28:34
○ 2026-04-03 12:21:56
● 2026-04-03 14:39:02
○ 2026-04-03 15:39:00
● 2026-04-03 17:08:36
● 2026-04-03 19:20:56
○ 2026-04-03 21:03:38
○ 2026-04-04 00:15:04
● 2026-04-04 01:22:40
● 2026-04-04 03:10:42
○ 2026-04-04 07:20:52
● 2026-04-04 08:32:14
● 2026-04-04 11:21:38
○ 2026-04-04 12:18:16
○ 2026-04-04 13:37:10
● 2026-04-04 14:26:14
● 2026-04-18 09:00:08
○ 2026-04-18 10:29:26
○ 2026-04-18 17:01:44
● 2026-04-18 17:38:48
● 2026-05-04 16:12:02
○ 2026-05-04 20:33:22
● 2026-05-04 22:49:50
● 2026-06-07 04:32:00
○ 2026-06-07 05:55:32
● 2026-06-07 10:03:30
○ 2026-06-07 20:07:20
● 2026-06-07 20:41:34
○ 2026-06-08 01:50:06
● 2026-06-08 03:36:26
● 2026-06-08 06:36:06
○ 2026-06-08 07:32:20
● 2026-06-08 09:03:12
● 2026-06-15 04:02:08
○ 2026-06-15 05:30:50
● 2026-06-15 10:22:46
● 2026-06-15 11:03:26
○ 2026-06-15 11:54:22
○ 2026-06-15 12:33:08
● 2026-06-15 14:42:42
○ 2026-06-25 00:47:26
● 2026-06-25 03:31:36
○ 2026-06-28 21:03:50
● 2026-06-29 05:46:58
○ 2026-07-18 23:57:18
● 2026-07-19 01:49:34
○ 2026-07-19 13:42:46
● 2026-07-19 19:43:32
○ 2026-07-23 04:11:46
● 2026-07-23 05:13:52
○ 2026-08-04 06:00:44
● 2026-08-04 06:55:36
● 2026-08-07 13:34:08

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:193.137.55.30

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 563ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.137.55.45`
AAAA	1	`2001:690:2200:a10::45`

📌 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

Mail Server Role

mx04.up.pt serves as a mail server for letras.up.pt, fba.up.pt, cipes.up.pt, ktforce.up.pt, alunos.fc.up.pt and a few other domains.

mx03.up.pt, mx01.up.pt and mx02.up.pt commonly appear as mail servers together with mx04.up.pt.

IP Addresses

mx04.up.pt has two IP addresses: 193.137.55.45 and 2001:690:2200:a10::45