tknu.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
oswald.ns.cloudflare.com	108.162.193.218 172.64.33.218 173.245.59.218 2606:4700:58::adf5:3bda 2803:f800:50::6ca2:c1da 2a06:98c1:50::ac40:21da	oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com oswald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
riya.ns.cloudflare.com	108.162.194.155 162.159.38.155 172.64.34.155 2606:4700:50::a29f:269b 2803:f800:50::6ca2:c29b 2a06:98c1:50::ac40:229b	riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 2061ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.61.91.148	298s	0x573d5b94.static.cust.fastspeed.dk	AS3292	TDC Holding A/S	87.61.0.0/17	🇩🇰 Denmark	Silkeborg

📧 MX Records2 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 216ms

TXT Record
protonmail-verification=a158e63a005f3d895ab0b7dc99f60378ec5397d0
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF

Policy	Record (tknu.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC

Policy	Record (_dmarc.tknu.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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

🔗 TLSA / DANE4 records 120ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC84ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2411902455
Primary NS (MNAME)	oswald.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

2061ms

MX

62ms

AAAA

50ms

TXT

216ms

CAA

61ms

HTTPS

72ms

TLSA

120ms

SOA

0ms

MTA-STS

71ms

DNSSEC

84ms

SRV

68ms

Total

2767ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 10:33:18	2767ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-08-13 01:10:35	2951ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-07-22 10:59:06	1491ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-07-18 02:05:38	1495ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-07-14 17:22:24	1192ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-25 15:54:11	1460ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 11:36:17	1411ms	2 NS 1 A 2 MX	🔓 Insecure	View