a1biler.dk

📜 Historical scan 2026-10-08 11:01:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a1biler.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 May 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.138.138.33 is hosted by Signet B.V. (AS20857) in The Netherlands. Mail is handled by a1biler-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

2 records 31ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
141.138.138.33	3600s	141-138-138-33.colo.transip.net	AS20857	Signet B.V.	141.138.136.0/21	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	a1biler-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca48::a 2a01:111:f403:ca48::c 52.101.68.15 52.101.68.21 52.101.68.25 52.101.68.29	mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 51ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	ww.virtuel-host.dk

📝 TXT Records#

2 records 139ms

TXT Record
MS=ms51390477
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (a1biler.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-10 21:08:35

www	141.138.138.33 (AS20857) (address records, no CNAME)
www vs bare domain	Same network a1biler.dk: 141.138.138.33 (AS20857) www.a1biler.dk: 141.138.138.33 (AS20857)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-a1biler-dk._domainkey.aibiler.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-a1biler-dk._domainkey.aibiler.onmicrosoft.com	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

52ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2026100501
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 2026-10-14 07:24:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-05-31
Expires	2027-06-30 (256d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
skærbækø.dk	Punktum dk A/S (direct)
virtuelhostweb.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

31ms

35ms

AAAA

31ms

TXT

139ms

CAA

40ms

HTTPS

30ms

TLSA

685ms

SOA

35ms

MTA-STS

43ms

DNSSEC

52ms

SRV

51ms

Total

1049ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 21:08:35	2432ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 11:01:59 shown	1049ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 23:07:08	1395ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 22:10:53	704ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 20:44:04	3000ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 20:18:22	759ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 06:36:49	1031ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 22:12:21	981ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 17:37:17	3234ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 03:25:22	1846ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:49:01	982ms	2 NS 1 A 1 MX	🔒 Secure