a9s.dk

📜 Historical scan 2026-10-02 01:23:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a9s.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 10 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.48.142.40 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by a9s-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#

4 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.48.142.40	3600s	—	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	a9s-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::9 2a01:111:f403:ca09::26 2a01:111:f403:ca21::c 52.101.103.137 52.101.103.36 52.101.209.31 52.101.68.12	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 119ms

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

✉️ SPF#

Policy	Record (a9s.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 2026-10-13 01:37:12

www	87.48.142.40 (AS3292) (address records, no CNAME)
www vs bare domain	Same network a9s.dk: 87.48.142.40 (AS3292) www.a9s.dk: 87.48.142.40 (AS3292)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 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#

126ms

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

🏷️ SOA#

39ms

Field	Value
Serial	2026100100
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 07:10:08

Field	Value
Registrar	Simply.com A/S
Registered	2009-02-10
Expires	2027-02-28 (133d)

🔗 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#

37ms

22ms

34ms

AAAA

31ms

TXT

119ms

CAA

32ms

HTTPS

36ms

TLSA

1017ms

SOA

39ms

MTA-STS

43ms

DNSSEC

126ms

SRV

94ms

Total

1816ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:37:11	2016ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-08 11:40:28	1179ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-02 01:23:48 shown	1816ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 01:19:14	1133ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-24 15:08:15	1216ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 10:48:01	1113ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 06:27:18	910ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-25 17:29:08	855ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-02 16:44:07	744ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 18:25:24	2132ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:15:35	872ms	4 NS 1 A 1 MX	🔒 Secure