mst-bygtjek.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 Records1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.12.152.72	600s	mail.sfw.dk	AS31027	GlobalConnect A/S	217.12.144.0/20	🇩🇰 Denmark	Årslev

📧 MX Records1 records 22ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mstbygtjek-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca09::9 52.101.68.12 52.101.68.21 52.101.73.155 52.101.73.26	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 53ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 213ms

TXT Record
MS=ms40417879
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

Policy	Record (mst-bygtjek.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

📨 DMARC

Policy	Record (_dmarc.mst-bygtjek.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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)

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083001
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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

23ms

A

30ms

MX

22ms

AAAA

37ms

TXT

213ms

CAA

28ms

HTTPS

25ms

TLSA

483ms

SOA

0ms

MTA-STS

43ms

DNSSEC

104ms

SRV

53ms

Total

1050ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 09:47:11	1050ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 07:05:15	1104ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 20:15:22	859ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 15:24:55	1967ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 12:40:36	1364ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 06:37:57	1889ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 23:29:39	1310ms	2 NS 1 A 1 MX	🔒 Secure	View