dtu-emba.dk

Records from scan: 2026-10-20 01:40:25 · 2571ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dtu-emba.dk is a .dk domain served by 3 nameservers (ns1.itwebhotel.dk, ns2.itwebhotel.dk, ns3.itwebhotel.dk). It was registered on 22 December 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.243.153.199 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.dtu-emba.dk. 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#

3 records 251ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.itwebhotel.dk	136.243.153.136	ns1.itwebhotel.dk	AS24940 Hetzner Online GmbH
ns2.itwebhotel.dk	136.243.153.176	ns2.itwebhotel.dk	AS24940 Hetzner Online GmbH
ns3.itwebhotel.dk	136.243.153.199	ns3.itwebhotel.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 318ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.243.153.199	3599s	ns3.itwebhotel.dk	AS24940	Hetzner Online GmbH	136.243.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 152ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.dtu-emba.dk	136.243.153.199	ns3.itwebhotel.dk	AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔶 Autoconfig	136.243.153.199

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 520ms

TXT Record
v=spf1 a mx ip4:136.243.153.199 ~all

✉️ SPF#

Policy	Record (dtu-emba.dk)
~all (soft fail)	v=spf1 a mx ip4:136.243.153.199 ~all

📨 DMARC#

Policy	Record (_dmarc.dtu-emba.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 2026-10-20 01:40:25

www	136.243.153.199 (AS24940) (address records, no CNAME)
www vs bare domain	Same network dtu-emba.dk: 136.243.153.199 (AS24940) www.dtu-emba.dk: 136.243.153.199 (AS24940)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

380ms

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

🏷️ SOA#

408ms

Field	Value
Serial	2026101906
Primary NS (MNAME)	ns1.itwebhotel.dk
Responsible (RNAME)	hostmaster@dtu-emba.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 13:05:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-12-22
Expires	2026-12-21 (61d)

📋 WHOIS#

⏱️ Lookup Timing#

251ms

318ms

152ms

AAAA

318ms

TXT

520ms

CAA

506ms

HTTPS

231ms

TLSA

383ms

SOA

408ms

MTA-STS

182ms

DNSSEC

380ms

SRV

496ms

Total

2571ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 01:40:25 shown	2571ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-15 21:07:12	654ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-14 19:02:58	623ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-10 12:33:46	763ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-03 17:02:14	551ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-19 14:39:35	2774ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-29 19:24:04	867ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 04:55:46	579ms	3 NS 1 A 1 MX	🔓 Insecure