tum.dk DNS records

🖥️ Nameservers3 records 72ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.digitalocean.com	172.64.52.210 2606:4700:52::ac40:34d2	ns1.digitalocean.com ns1.digitalocean.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ns2.digitalocean.com	172.64.53.21 2606:4700:5a::ac40:3515	ns2.digitalocean.com ns2.digitalocean.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ns3.digitalocean.com	172.64.49.209 2606:4700:52::ac40:31d1	ns3.digitalocean.com ns3.digitalocean.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
156.67.28.242	60s	ial.dk	AS51167	Contabo GmbH	156.67.24.0/21	🇫🇷 France	Lauterbourg

📧 MX Records2 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	14400s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	156.67.28.242
🔶 Autoconfig	autoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 508ms

TXT Record
hosted-email-verify=wypirddd
v=spf1 include:spf.migadu.com -all

✉️ SPF

Policy	Record (tum.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC

Policy	Record (_dmarc.tum.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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.tum.dk	Rezh6XQMkBtJb1ZN3GsVIJ0IMcbXw48HYh5zfaXmDek

🔗 TLSA / DANE

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

🔐 DNSSEC2074ms

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	0
Primary NS (MNAME)	ns1.digitalocean.com
Responsible (RNAME)	hostmaster@tum.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

72ms

A

63ms

MX

57ms

AAAA

57ms

TXT

508ms

CAA

62ms

HTTPS

71ms

TLSA

624ms

SOA

0ms

MTA-STS

98ms

DNSSEC

2074ms

SRV

244ms

Total

3521ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 22:30:35	3521ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-27 01:38:56	2808ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-25 17:24:24	3023ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-28 01:41:12	2742ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-27 02:03:39	1668ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-25 12:50:56	4553ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-22 02:52:13	658ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-18 07:45:47	2051ms	3 NS 1 A 2 MX	🔓 Insecure	View