mst-bygtjek.dk

📜 Historical scan 2026-09-30 20:36:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mst-bygtjek.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 January 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.12.152.72 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by mstbygtjek-dk0i.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 30ms

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 35ms

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 Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mstbygtjek-dk0i.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::9 2a01:111:f403:ca09::a 2a01:111:f403:ca38::8 52.101.103.140 52.101.103.36 52.101.68.8 52.101.91.21	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-matpr05cu00105.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

🔌 SRV Records#

1 records 50ms

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

📝 TXT Records#

2 records 155ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 10:36:48

www	217.12.152.72 (AS31027) (address records, no CNAME)
www vs bare domain	Same network mst-bygtjek.dk: 217.12.152.72 (AS31027) www.mst-bygtjek.dk: 217.12.152.72 (AS31027)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-mstbygtjek-dk0i._domainkey.mstbygtjekaps.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2026093001
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 15:43:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-01-15
Expires	2027-01-31 (96d)

🔗 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#

30ms

35ms

33ms

AAAA

34ms

TXT

155ms

CAA

33ms

HTTPS

38ms

TLSA

859ms

SOA

28ms

MTA-STS

47ms

DNSSEC

106ms

SRV

50ms

Total

2064ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:36:48	1021ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 20:36:03 shown	2064ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 23:21:53	1019ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 16:20:12	1327ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 09:47:11	1050ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 07:05:15	1104ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 20:15:22	859ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 15:24:55	1967ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-21 12:40:36	1364ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-16 06:37:57	1889ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 23:29:39	1310ms	2 NS 1 A 1 MX	🔒 Secure