sixteentwelve.dk DNS records

🖥️ Nameservers2 records 23ms

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 Records4 records 30ms

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 Records1 records 21ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sixteentwelve-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca38::8 2a01:111:f403:ca38::a 2a01:111:f403:ca3c::6 52.101.185.114 52.101.185.21 52.101.209.153 52.101.73.12	mail-db6pr03cu00105.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-am4pr0401cu00104.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 147ms

TXT Record
include:146117636.spf10.hubspotemail.net
MS=ms11914459
v=spf1 include:_custspf.one.com ~all

✉️ SPF

Policy	Record (sixteentwelve.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC

Policy	Record (_dmarc.sixteentwelve.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC102ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090405
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-07-04 21:10:03

Field	Value
Registrar	ONE.COM A/S
Registered	2018-11-29
Expires	2026-11-30 (82d)

📋 WHOIS

⏱️ Lookup Timing

NS

23ms

A

30ms

MX

21ms

AAAA

35ms

TXT

147ms

CAA

37ms

HTTPS

21ms

TLSA

178ms

SOA

0ms

MTA-STS

118ms

DNSSEC

102ms

SRV

131ms

Total

748ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-06 13:12:40	748ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-25 22:53:53	1014ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-11 20:22:30	7325ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-08 04:37:16	9288ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-07-18 23:58:42	5665ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-07-04 21:04:16	4217ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-07-02 10:33:00	1151ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-18 06:22:53	1039ms	2 NS 4 A 1 MX	🔒 Secure	View