a15.dk

📜 Historical scan 2026-08-07 16:48:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a15.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 April 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.185.159.144 is hosted by Squarespace, Inc. (AS53831) in United States. Mail is handled by a15-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 107ms

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#

4 records 146ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 103ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	a15-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca09::e 52.101.68.29 52.101.73.1 52.101.73.19 52.101.73.28	mail-db5pr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 471ms

TXT Record
google-site-verification=jI9hkBNB6yWk6T3SFsS3Y5NAhRrwY7EhH1-gAN1YxAo
MS=ms62902966
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (a15.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 2026-10-11 19:21:38

www CNAME	ext-cust.squarespace.com (all on squarespace.com) → 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
www vs bare domain	Same network a15.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.a15.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

190ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026072901
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 2026-10-11 19:42:26

Field	Value
Registrar	ONE.COM A/S
Registered	2022-04-02
Expires	2027-04-01 (166d)

🔗 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#

107ms

146ms

103ms

AAAA

116ms

TXT

471ms

CAA

99ms

HTTPS

146ms

TLSA

191ms

SOA

0ms

MTA-STS

139ms

DNSSEC

190ms

SRV

875ms

Total

1937ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 19:21:38	1181ms	2 NS 4 A 1 MX	🔒 Secure
2026-09-30 00:04:55	1383ms	2 NS 4 A 1 MX	🔒 Secure
2026-09-23 21:24:22	1241ms	2 NS 4 A 1 MX	🔒 Secure
2026-09-03 20:35:26	848ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-30 03:22:07	2010ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-26 16:54:06	1038ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-12 21:52:48	1781ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-07 16:48:07 shown	1937ms	2 NS 4 A 1 MX	🔒 Secure
2026-07-25 07:41:35	1358ms	2 NS 4 A 1 MX	🔒 Secure
2026-07-21 20:32:02	7252ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-26 13:03:54	929ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-24 20:18:54	876ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-20 16:36:17	821ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-16 13:15:16	1379ms	2 NS 4 A 1 MX	🔒 Secure