byensmester.dk

📜 Historical scan 2026-06-24 07:36:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byensmester.dk is a .dk domain served by 2 nameservers (meiling.ns.cloudflare.com, sullivan.ns.cloudflare.com). It was registered on 17 February 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.158 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by byensmester-dk.mail.protection.outlook.com. The zone is of unknown DNSSEC status, has no DMARC policy and is reachable over IPv6. 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 309ms

Nameserver	IP addresses	PTR	ASN / ISP
meiling.ns.cloudflare.com	108.162.194.254 162.159.38.254 172.64.34.254 2606:4700:50::a29f:26fe 2803:f800:50::6ca2:c2fe 2a06:98c1:50::ac40:22fe	meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sullivan.ns.cloudflare.com	108.162.195.161 162.159.44.161 172.64.35.161 2606:4700:58::a29f:2ca1 2803:f800:50::6ca2:c3a1 2a06:98c1:50::ac40:23a1	sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 246ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.5.158	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.133.154	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 241ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	byensmester-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::7 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 52.101.68.15 52.101.68.5 52.101.73.12 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.98.16.67

🔷 AAAA Records (IPv6)#

2 records 201ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:859a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:59e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 227ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.5.158,172.67.133.154 ech=AEX+DQBBJgAgACDEe6fH/MJxGPU11bgPwmf+lAkTmGqNq0Y5foUuVoe/cwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:859a,2606:4700:3036::6815:59e

🔌 SRV Records#

1 records 308ms

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

📝 TXT Records#

2 records 572ms

TXT Record
MS=ms68541319
v=spf1 include:_spf.hostedemail.com include:spf.protection.outlook.com include:spf.minuba.dk ~all

✉️ SPF#

Policy	Record (byensmester.dk)
~all (soft fail)	v=spf1 include:_spf.hostedemail.com include:spf.protection.outlook.com include:spf.minuba.dk ~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 2026-10-07 23:12:15

www	104.21.5.158 172.67.133.154 2606:4700:3035::6815:59e 2606:4700:3036::ac43:859a (AS13335) (address records, no CNAME)
www vs bare domain	Same network byensmester.dk: 104.21.5.158 172.67.133.154 2606:4700:3035::6815:59e 2606:4700:3036::ac43:859a (AS13335) www.byensmester.dk: 104.21.5.158 172.67.133.154 2606:4700:3035::6815:59e 2606:4700:3036::ac43:859a (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

459ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'byensmester.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

254ms

Field	Value
Serial	2406029734
Primary NS (MNAME)	meiling.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 08:17:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-02-17
Expires	2027-02-28 (134d)

📋 WHOIS#

⏱️ Lookup Timing#

309ms

246ms

241ms

AAAA

201ms

TXT

572ms

CAA

243ms

HTTPS

227ms

TLSA

376ms

SOA

254ms

MTA-STS

312ms

DNSSEC

459ms

SRV

308ms

Total

4601ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 22:18:10	3768ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 21:35:38	880ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 21:05:19	1719ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 23:05:14	6104ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 23:07:13	2104ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 11:00:55	1304ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 11:53:35	1399ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 07:36:24 shown	4601ms	2 NS 2 A 1 MX	❓ Unknown
2026-06-22 05:42:49	991ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 18:05:20	2760ms	2 NS 2 A 1 MX	🔓 Insecure