birtholm.dk

Records from scan: 2026-10-03 02:48:06 · 4480ms total · last checked 2026-10-16 10:08 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

birtholm.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by cp01.azehosting.net. 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#

2 records 35ms

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#

🌍

No A records found

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	cp01.azehosting.net	157.90.67.40 2a01:4f8:2b02:6d4::2	cp01.azehosting.net cp01.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	157.90.67.40
🔶 Autoconfig	157.90.67.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 179ms

TXT Record
v=spf1 +ip4:157.90.67.40 +include:spf.azehosting.net +include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (birtholm.dk)
~all (soft fail)	v=spf1 +ip4:157.90.67.40 +include:spf.azehosting.net +include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.birtholm.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;rua=mailto:postmaster@birtholm.dk

📬 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 2026-10-13 05:52:22

www	157.90.67.40 2a01:4f8:241:1f86::2 (AS24940) (address records, no CNAME)
www vs bare domain	Only www resolves birtholm.dk: no address www.birtholm.dk: 157.90.67.40 2a01:4f8:241:1f86::2 (AS24940) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

64ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

37ms

Field	Value
Serial	2026092401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

35ms

41ms

AAAA

53ms

TXT

179ms

CAA

47ms

HTTPS

40ms

TLSA

60ms

SOA

37ms

MTA-STS

47ms

DNSSEC

64ms

SRV

63ms

Total

4480ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 02:48:06 shown	4480ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-27 01:34:35	507ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-25 03:43:40	606ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-24 02:58:46	699ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-27 04:21:17	567ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-26 13:10:31	483ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-26 08:13:05	893ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-28 20:57:19	549ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-16 14:46:23	315ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-16 14:40:27	2485ms	2 NS 0 A 1 MX	🔒 Secure