a-ct.dk

📜 Historical scan 2026-07-21 09:29:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a-ct.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. Its website address 46.30.213.98 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by act-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 40ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.98	600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	act-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::2 2a01:111:f403:ca09::1 2a01:111:f403:ca09::7 52.101.68.39 52.101.73.15 52.101.73.24 52.101.73.26	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-as9pr05cu01302.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)#

1 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:8011:2e57:2716:970a	600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 280ms

TXT Record
MS=ms76918447
v=spf1 include:spf.protection.outlook.com include:mouseketeers.conviator.com -all

✉️ SPF#

Policy	Record (a-ct.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mouseketeers.conviator.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 2026-10-11 02:12:25

www	46.30.213.98 2a02:2350:5:10b:8011:2e57:2716:970a (AS51468) (address records, no CNAME)
www vs bare domain	Same network a-ct.dk: 46.30.213.98 2a02:2350:5:10b:8011:2e57:2716:970a (AS51468) www.a-ct.dk: 46.30.213.98 2a02:2350:5:10b:8011:2e57:2716:970a (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

error include:mouseketeers.conviator.com has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

111ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026072001
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#

40ms

41ms

40ms

AAAA

44ms

TXT

280ms

CAA

43ms

HTTPS

46ms

TLSA

252ms

SOA

0ms

MTA-STS

66ms

DNSSEC

111ms

SRV

123ms

Total

1162ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 16:24:41	7075ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 22:14:12	1117ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 17:38:43	1244ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 16:36:42	1792ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 14:46:51	4057ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 23:56:44	8460ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 12:51:17	1944ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 23:18:45	15254ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-21 09:29:12 shown	1162ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 16:33:18	3167ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 18:38:59	1170ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:46:42	664ms	2 NS 1 A 1 MX	🔒 Secure