dtumba.dk

📜 Historical scan 2026-06-24 18:31:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dtumba.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.dtumba.dk. The zone is not DNSSEC-signed, has no 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#

3 records 55ms

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 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.243.153.199	3600s	ns3.itwebhotel.dk	AS24940	Hetzner Online GmbH	136.243.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 56ms

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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 265ms

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

✉️ SPF#

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

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-15 10:41:49

www	136.243.153.199 (AS24940) (address records, no CNAME)
www vs bare domain	Same network dtumba.dk: 136.243.153.199 (AS24940) www.dtumba.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#

126ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2025122200
Primary NS (MNAME)	ns1.itwebhotel.dk
Responsible (RNAME)	hostmaster@dtumba.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-11 05:05:11

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-12-22
Expires	2026-12-21 (63d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

59ms

56ms

AAAA

48ms

TXT

265ms

CAA

43ms

HTTPS

58ms

TLSA

97ms

SOA

43ms

MTA-STS

78ms

DNSSEC

126ms

SRV

91ms

Total

667ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 10:41:49	606ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-11 04:37:44	805ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-07 22:08:50	673ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-29 22:03:33	618ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-26 02:01:18	9502ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 15:49:29	998ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 13:06:19	1602ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-26 23:37:41	686ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-25 13:40:45	2869ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 18:31:23 shown	667ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 20:08:51	1062ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 04:55:33	608ms	3 NS 1 A 1 MX	🔓 Insecure