nielsbuus.dk

Records from scan: 2026-10-12 15:36:47 · 1956ms total · last checked 2026-10-20 09:40 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nielsbuus.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 169.58.93.89 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mx1.improvmx.com, mx2.improvmx.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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
169.58.93.89	600s	vmi3473270.contaboserver.net	AS51167	Contabo GmbH	169.58.0.0/16	🇫🇷 France	Lauterbourg

📧 MX Records#

2 records 66ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx1.improvmx.com	13.37.195.136 15.236.236.160 2a05:d012:412:e201:88aa:e7b9:7a43:12d7 2a05:d012:412:e202:f36:2c1f:1a49:d38a 2a05:d012:412:e203:373a:f51a:4a85:1d25 35.181.18.45	ec2-13-37-195-136.eu-west-3.compute.amazonaws.com ec2-15-236-236-160.eu-west-3.compute.amazonaws.com — — — ec2-35-181-18-45.eu-west-3.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	600s	mx2.improvmx.com	13.36.107.63 13.36.222.39 15.236.61.92 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678 2a05:d012:412:e202:e81e:cc44:3b53:8a3d 2a05:d012:412:e203:7e33:3d9c:28d7:ee20	ec2-13-36-107-63.eu-west-3.compute.amazonaws.com ec2-13-36-222-39.eu-west-3.compute.amazonaws.com ec2-15-236-61-92.eu-west-3.compute.amazonaws.com — — —	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	contabo.nielsbuus.dk → 169.58.93.89
🔶 Autoconfig	contabo.nielsbuus.dk → 169.58.93.89

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 252ms

TXT Record
v=spf1 include:spf.improvmx.com ~all

✉️ SPF#

Policy	Record (nielsbuus.dk)
~all (soft fail)	v=spf1 include:spf.improvmx.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#

checked 2026-10-12 15:36:47

www CNAME	contabo.nielsbuus.dk (all on nielsbuus.dk) → 169.58.93.89 (AS51167)
www vs bare domain	Same network nielsbuus.dk: 169.58.93.89 (AS51167) www.nielsbuus.dk: 169.58.93.89 (AS51167)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.nielsbuus.dk	contabo.nielsbuus.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

240ms

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

🏷️ SOA#

51ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

64ms

76ms

66ms

AAAA

73ms

TXT

252ms

CAA

74ms

HTTPS

65ms

TLSA

518ms

SOA

51ms

MTA-STS

133ms

DNSSEC

240ms

SRV

152ms

Total

1956ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 15:36:47 shown	1956ms	4 NS 1 A 2 MX	🔒 Secure
2026-10-01 01:44:44	2080ms	4 NS 1 A 2 MX	🔒 Secure
2026-08-08 17:13:05	2020ms	4 NS 1 A 2 MX	🔒 Secure
2026-07-29 17:28:03	2046ms	4 NS 1 A 2 MX	🔒 Secure
2026-07-01 04:51:45	1066ms	4 NS 1 A 2 MX	🔒 Secure
2026-06-23 01:55:21	1087ms	4 NS 1 A 2 MX	🔒 Secure
2026-06-18 04:46:54	1268ms	4 NS 1 A 2 MX	🔒 Secure