checking.dk

Records from scan: 2026-10-05 13:26:07 · 720ms total · last checked 2026-10-16 19:18 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

checking.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 May 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 173.249.53.245 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by .. The zone is DNSSEC-signed and validates, has no 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
173.249.53.245	43200s	vmi749527.contaboserver.net	AS51167	Contabo GmbH	173.249.0.0/18	🇫🇷 France	Lauterbourg

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

checked 2026-10-08 23:28:44

www	173.249.53.245 (AS51167) (address records, no CNAME)
www vs bare domain	Same network checking.dk: 173.249.53.245 (AS51167) www.checking.dk: 173.249.53.245 (AS51167)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2026100401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-05 13:34:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-05-18
Expires	2027-05-31 (225d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

37ms

44ms

AAAA

35ms

TXT

140ms

CAA

44ms

HTTPS

32ms

TLSA

122ms

SOA

44ms

MTA-STS

232ms

DNSSEC

120ms

SRV

54ms

Total

720ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 13:26:07 shown	720ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:10:10	706ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:14:12	555ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 02:39:11	741ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-27 20:04:25	581ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-05 08:17:13	8228ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-01 00:10:30	2290ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-27 06:32:37	823ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-20 02:07:07	759ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-16 20:25:07	724ms	2 NS 1 A 4 MX	🔒 Secure