ptu.dk

Records from scan: 2026-10-01 00:34:16 · 1136ms total · last checked 2026-10-22 09:38 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ptu.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 10 December 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.19.191.28 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.19.191.28	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records#

5 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	3600s	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	3600s	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.
50	3600s	ptu-dk.mail.protection.outlook.com	2a01:111:f403:ca09::24 2a01:111:f403:ca21::8 2a01:111:f403:ca38::8 2a01:111:f403:ca48::a 52.101.181.153 52.101.68.25 52.101.68.29 52.101.73.155	mail-am6pr02cu00204.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 153ms

TXT Record
v=spf1 include:_spf23880.spfprotect.com -all

✉️ SPF#

Policy	Record (ptu.dk)
-all (hard fail)	v=spf1 include:_spf23880.spfprotect.com -all

📨 DMARC#

Policy	Record (_dmarc.ptu.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6596753cb2624@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#

checked 2026-10-11 23:12:07

www CNAME	ptu.dk (all on ptu.dk) → 104.19.191.28 (AS13335)
www vs bare domain	Same network ptu.dk: 104.19.191.28 (AS13335) www.ptu.dk: 104.19.191.28 (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-ptu-dk._domainkey.ulykkespatient.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-ptu-dk._domainkey.ulykkespatient.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

8 records 211ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…

🔐 DNSSEC#

69ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026011602
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-05 22:16:56

Field	Value
Registrar	DANDOMAIN A/S
Registered	1996-12-10
Expires	2026-12-31 (68d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

48ms

29ms

AAAA

32ms

TXT

153ms

CAA

39ms

HTTPS

38ms

TLSA

211ms

SOA

42ms

MTA-STS

59ms

DNSSEC

69ms

SRV

66ms

Total

1136ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 00:34:16 shown	1136ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-29 17:53:02	1113ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-23 19:22:47	1111ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-09 01:22:32	996ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-30 06:05:04	1628ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 16:49:37	4769ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-23 17:08:27	1185ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 05:16:19	1048ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-18 04:01:22	1314ms	2 NS 1 A 5 MX	🔒 Secure