a-2.dk

Records from scan: 2026-10-13 14:29:28 · 787ms total · last checked 2026-10-25 20:14 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a-2.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 October 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.127 is hosted by Cloudflare, Inc. (AS13335) in United States. Mail is handled by a2-dk0c.q-v1.mx.microsoft. 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 51ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.127	600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	a2-dk0c.q-v1.mx.microsoft	2a01:111:f403:ca04::e 2a01:111:f403:ca21::a 2a01:111:f403:ca48::8 2a01:111:f403:ca48::e 52.101.103.140 52.101.209.153 52.101.209.28 52.101.68.8	mail-db8pr02cu00106.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.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

🔌 SRV Records#

1 records 73ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 144ms

TXT Record
apple-domain-verification=YJyJUnFLBt2C3pUU
v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com -all

✉️ SPF#

Policy	Record (a-2.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com -all

📨 DMARC#

Policy	Record (_dmarc.a-2.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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 14:29:28

www CNAME	a-2.dk (all on a-2.dk) → 162.159.140.127 (AS13335)
www vs bare domain	Same network a-2.dk: 162.159.140.127 (AS13335) www.a-2.dk: 162.159.140.127 (AS13335)
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

No problems found

🔗 TLSA / DANE#

4 records 75ms

Service / Owner	Type	Cert association
SMTP _25._tcp.a2-dk0c.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.a2-dk0c.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.a2-dk0c.q-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.a2-dk0c.q-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

114ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026101201
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 2026-10-13 14:45:48

Field	Value
Registrar	ONE.COM A/S
Registered	2000-10-10
Expires	2035-12-31 (3353d)

🔗 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#

51ms

43ms

AAAA

38ms

TXT

144ms

CAA

44ms

HTTPS

33ms

TLSA

75ms

SOA

42ms

MTA-STS

54ms

DNSSEC

114ms

SRV

73ms

Total

787ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 14:29:28 shown	787ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 16:07:34	715ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 09:39:13	1927ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 01:08:50	658ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:37:41	700ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 09:29:45	1116ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 20:29:57	1128ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 01:32:33	1524ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 18:36:28	2805ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 19:51:40	3959ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:58:29	1732ms	2 NS 1 A 1 MX	🔒 Secure