bystrup.dk

📜 Historical scan 2026-09-02 17:35:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bystrup.dk is a .dk domain served by 2 nameservers (ns1.atznet.dk, ns2.atznet.dk). It was registered on 12 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 173.203.204.123 is hosted by Rackspace Hosting (AS33070) in United States. Mail is handled by bystrup-dk.mail.protection.outlook.com, bystrup-dk.mail.eo.outlook.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.atznet.dk	195.242.130.110 2001:67c:564:fffb::ffff	ns1.atznet.dk —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.atznet.dk	2a00:1b18:2:3:2::2 62.69.152.36	ns2.atznet.dk ns2.atznet.dk	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
173.203.204.123	3600s	cargocollective.com	AS33070	Rackspace Hosting	173.203.192.0/18	🇺🇸 United States	—

📧 MX Records#

2 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	7200s	bystrup-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09:: 2a01:111:f403:ca09::24 2a01:111:f403:ca09::a 52.101.103.137 52.101.68.27 52.101.68.5 52.101.73.22	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.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
5	7200s	bystrup-dk.mail.eo.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09:: 2a01:111:f403:ca09::24 2a01:111:f403:ca09::a 52.101.181.153 52.101.68.5 52.101.73.123 52.101.73.126	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am8pr83cu00106.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 52ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 165ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (bystrup.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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#

latest probe, not this scan · checked 2026-10-07 20:53:35

www CNAME	bystrup.dk (all on bystrup.dk) → 173.203.204.123 (AS33070)
www vs bare domain	Same network bystrup.dk: 173.203.204.123 (AS33070) www.bystrup.dk: 173.203.204.123 (AS33070)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

94ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2018112605
Primary NS (MNAME)	ns1.atznet.dk
Responsible (RNAME)	hostmaster@atznet.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	172800s

📋 Registration#

WHOIS fetched 2026-10-16 21:44:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-11-12
Expires	2026-12-31 (75d)

🔗 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#

51ms

44ms

42ms

AAAA

47ms

TXT

165ms

CAA

52ms

HTTPS

46ms

TLSA

3797ms

SOA

0ms

MTA-STS

62ms

DNSSEC

94ms

SRV

52ms

Total

4469ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 19:23:44	762ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-02 17:35:20 shown	4469ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-30 21:50:24	4781ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-22 18:29:26	4901ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 18:25:49	1052ms	2 NS 1 A 2 MX	🔒 Secure