bybolig.dk

📜 Historical scan 2026-08-27 07:51:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bybolig.dk is a .dk domain served by 3 nameservers (ns1.wendt-net.dk, ns2.wendt-net.dk, ns3.wendt-net.dk). It was registered on 10 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.189.180.19 is hosted by ICT Shift (AS213023) in The Netherlands. Mail is handled by bybolig-dk.mail.protection.outlook.com, post.wendt-net.dk. The zone is not DNSSEC-signed, 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#

3 records 142ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.wendt-net.dk	185.189.180.19 2a0b:f380:0:1:6::101	ns1.win4ce.eu ns1.win4ce.eu	AS213023 ICT Shift AS213023 ICT Shift
ns2.wendt-net.dk	185.189.180.16 2a0b:f380:0:1:6::112	ns2.win4ce.eu 2a0b-f380-0-1-6--112.rdns6.ictshift.net	AS213023 ICT Shift AS213023 ICT Shift
ns3.wendt-net.dk	185.189.180.23 2a0b:f380:0:1:6::102	mx2.mail4ce.com ns3.win4ce.eu	AS213023 ICT Shift AS213023 ICT Shift

🌍 A Records#

1 records 155ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.189.180.19	3600s	ns1.win4ce.eu	AS213023	ICT Shift	185.189.180.0/24	🇳🇱 The Netherlands	—

📧 MX Records#

2 records 159ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	bybolig-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca09::a 2a01:111:f403:ca09::c 52.101.68.10 52.101.68.16 52.101.68.27 52.101.73.145	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00301.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
10	3600s	post.wendt-net.dk	185.189.180.109 2a0b:f380:0:1:7::101	post.wendt-net.dk post.wendt-net.dk	AS213023 ICT Shift AS213023 ICT Shift

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig	185.189.180.19

🔷 AAAA Records (IPv6)#

1 records 183ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1af8:4300:a01e:3:0:3:1	3600s	—	AS60781	LeaseWeb Netherlands B.V.	2001:1af8:0:0:0:0:0:0/32	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 669ms

TXT Record
MS=ms83795070
v=spf1 include:spf.protection.outlook.com -all
v=spf1 mx a ip4:185.189.180.0/24 ip6:2a0b:f380:0:1::/64 include:spf.lnxsvr.eu include:spf.mail4ce.com ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (bybolig.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all
~all (soft fail)	v=spf1 mx a ip4:185.189.180.0/24 ip6:2a0b:f380:0:1::/64 include:spf.lnxsvr.eu include:spf.mail4ce.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 2026-10-12 01:02:24

www	185.189.180.19 2001:1af8:4300:a01e:3:0:3:1 (AS60781 AS213023) (address records, no CNAME)
www vs bare domain	Same network bybolig.dk: 185.189.180.19 2001:1af8:4300:a01e:3:0:3:1 (AS60781 AS213023) www.bybolig.dk: 185.189.180.19 2001:1af8:4300:a01e:3:0:3:1 (AS60781 AS213023)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

194ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2012111638
Primary NS (MNAME)	ns1.wendt-net.dk
Responsible (RNAME)	hostmaster@bybolig.dk
Refresh	3600s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-24 00:01:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-01-10
Expires	2027-03-31 (154d)

🔗 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#

142ms

155ms

159ms

AAAA

183ms

TXT

669ms

CAA

142ms

HTTPS

97ms

TLSA

372ms

SOA

0ms

MTA-STS

216ms

DNSSEC

194ms

SRV

275ms

Total

1839ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 12:09:21	2177ms	3 NS 1 A 2 MX	🔓 Insecure
2026-09-24 12:21:31	4406ms	3 NS 1 A 2 MX	🔓 Insecure
2026-09-10 15:04:49	4647ms	3 NS 1 A 2 MX	🔓 Insecure
2026-08-28 06:57:38	1778ms	3 NS 1 A 2 MX	🔓 Insecure
2026-08-27 07:51:05 shown	1839ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-25 00:12:17	1502ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-24 17:49:45	2632ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-20 19:48:43	2839ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-16 18:05:36	807ms	3 NS 1 A 2 MX	🔓 Insecure