a1regnskab.dk

📜 Historical scan 2026-10-09 14:04:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a1regnskab.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 13 December 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.8.38.9 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by a1regnskab-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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.8.38.9	3600s	—	AS48854	team.blue Denmark A/S	193.8.38.0/24	🇩🇰 Denmark	—

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	a1regnskab-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca48::8 52.101.103.140 52.101.181.153 52.101.68.21 52.101.91.162	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 121ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ip4:193.8.37.86 include:web.shared.mysmtp.com -all

✉️ SPF#

Policy	Record (a1regnskab.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ip4:193.8.37.86 include:web.shared.mysmtp.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 2026-10-16 10:36:18

www	193.8.38.9 (AS48854) (address records, no CNAME)
www vs bare domain	Same network a1regnskab.dk: 193.8.38.9 (AS48854) www.a1regnskab.dk: 193.8.38.9 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-a1regnskab-dk._domainkey.a1regnskab.onmicrosoft.com	RSA · ~1024 bit below 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: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

127ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2025093001
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-16 10:59:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-12-13
Expires	2026-12-31 (70d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

39ms

41ms

40ms

AAAA

28ms

TXT

121ms

CAA

36ms

HTTPS

44ms

TLSA

669ms

SOA

38ms

MTA-STS

54ms

DNSSEC

127ms

SRV

49ms

Total

1404ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 10:36:17	2390ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 14:04:01 shown	1404ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 05:52:38	813ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:05:46	4032ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:15:06	970ms	2 NS 1 A 1 MX	🔒 Secure