bybolig.dk

📜 Historical scan 2026-06-20 19:48:43 · ← 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 Key4ce (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 295ms

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 —	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 216ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.189.180.19	3600s	ns1.win4ce.eu	AS213023	Key4ce	185.189.180.0/24	🇳🇱 The Netherlands	—

📧 MX Records#

2 records 177ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	bybolig-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca09::f 52.101.68.39 52.101.68.8 52.101.73.22 52.101.73.30	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00306.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 225ms

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 745ms

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#

421ms

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

🏷️ SOA#

339ms

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 2026-10-09 05:43:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-01-10
Expires	2027-03-31 (161d)

📋 WHOIS#

⏱️ Lookup Timing#

295ms

216ms

177ms

AAAA

225ms

TXT

745ms

CAA

219ms

HTTPS

242ms

TLSA

345ms

SOA

339ms

MTA-STS

309ms

DNSSEC

421ms

SRV

439ms

Total

2839ms

🕐 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	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 shown	2839ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-16 18:05:36	807ms	3 NS 1 A 2 MX	🔓 Insecure