itu.dk

📜 Historical scan 2026-10-07 15:57:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

itu.dk is a .dk domain served by 2 nameservers (ns01.itu.dk, ns02.itu.dk). It was registered on 12 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.142.241 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by itu-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.itu.dk	130.226.142.250	ns01.itu.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns02.itu.dk	130.226.142.254	ns02.itu.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.226.142.241	3600s	FortiADC.itu.dk	AS1835	IDDQD-AS	130.226.0.0/16	🇩🇰 Denmark	—

📧 MX Records#

1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	itu-dk.mail.protection.outlook.com	2a01:111:f403:ca09::20 2a01:111:f403:ca09::28 2a01:111:f403:ca38::a 2a01:111:f403:ca48::12 52.101.209.153 52.101.68.25 52.101.73.145 52.101.73.153	mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 90ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

10 records 194ms

TXT Record
adobe-idp-site-verification=d06e7ecd2c825c6f1713b920a9533938044421bcc4040317353507834b5930d4
apple-domain-verification=jmG2dGFsEJrFBV6E
apple-domain-verification=WDBQG0Hz5HDROLOa
globalsign-domain-verification=9MYfZojZMlir5ymjYa9NNd-MIVnsZUfvW1YbL5KxJ2
google-site-verification=lVzlOYc6CnAi4Dft0UuT1M42AyPMoza2WGJHPG8BbtI
google-site-verification=qiKTzEKqmxWBRM_JUjG_AQop5_uC1HP6snuSWm0_AlU
TAILSCALE-c08rvcXELNEi4M3hLsHn
tw2qYTjTlN4Apj0QSTVTSXQqXk4dL1OxAtbeVxkUAFyw1HogaUnIVzJgLXqxkRdugOOXFYj7xLQxAGEXVhK1Kw==
v=spf1 include:spf.protection.outlook.com ip4:193.162.253.130 ip4:130.226.143.24 ip4:20.71.116.37 ip4:130.226.132.32 a:mx2.itu.dk include:mailmailmail.net ip4:46.36.206.110 ip4:46.36.204.50 ip4:130.226.140.45 ~all
ZOOM_verify_guc0vJQqTgyDgzqWhbKfJw

✉️ SPF#

Policy	Record (itu.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ip4:193.162.253.130 ip4:130.226.143.24 ip4:20.71.116.37 ip4:130.226.132.32 a:mx2.itu.dk include:mailmailmail.net ip4:46.36.206.110 ip4:46.36.204.50 ip4:130.226.140.45 ~all

📨 DMARC#

Policy	Record (_dmarc.itu.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:690c5a8694b00@dmarc-dk.centerasecurity.com;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 04:28:06

www CNAME	proxy.itu.dk (all on itu.dk) → 130.226.142.241 (AS1835)
www vs bare domain	Same network itu.dk: 130.226.142.241 (AS1835) www.itu.dk: 130.226.142.241 (AS1835)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

5 found

Selector	CNAME	Key
mail	—	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u276253.wl004.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u276253.wl004.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-itu-dk._domainkey.ituniversity.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-itu-dk._domainkey.ituniversity.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

118ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

28ms

Field	Value
Serial	1660
Primary NS (MNAME)	ns01.itu.dk
Responsible (RNAME)	hostmaster@itu.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 04:12:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-04-12
Expires	2027-06-30 (255d)

🔗 Same registrant#

10 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
globalituniversity.dk	Punktum dk A/S (direct)
it-c.dk	Punktum dk A/S (direct)
it-h.dk	Punktum dk A/S (direct)
it-hoejskole.dk	Punktum dk A/S (direct)
it-hoejskolen.dk	Punktum dk A/S (direct)
it-university.dk	Punktum dk A/S (direct)
itu-devel.dk	Punktum dk A/S (direct)
ituinfo.dk	ONE.COM A/S
linuxlab.dk	Punktum dk A/S (direct)
sikkercyber.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

44ms

53ms

AAAA

57ms

TXT

194ms

CAA

59ms

HTTPS

62ms

TLSA

864ms

SOA

28ms

MTA-STS

65ms

DNSSEC

118ms

SRV

90ms

Total

3923ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 04:28:06	5026ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 04:02:12	3574ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 03:57:07	4901ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 02:29:53	4540ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 00:57:44	5110ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 23:25:33	5119ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 22:26:31	3365ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 20:54:38	3218ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 15:58:46	3122ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 15:57:13 shown	3923ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 15:46:54	4562ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 13:01:37	4599ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 12:34:29	3729ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 12:32:47	4670ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 12:30:12	3243ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 12:22:11	3376ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:30:36	4235ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 16:19:28	3895ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 16:09:14	3085ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 15:56:28	3243ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 15:52:13	3694ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 15:40:25	3180ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:57:32	5459ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-18 06:02:22	3554ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 11:17:55	5067ms	2 NS 1 A 1 MX	🔒 Secure