bybolig.dk DNS records

🖥️ Nameservers3 records 40ms

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 Key4ce AS213023 Key4ce
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 Key4ce AS213023 Key4ce
ns3.wendt-net.dk	185.189.180.23 2a0b:f380:0:1:6::102	mx2.mail4ce.com ns3.win4ce.eu	AS213023 Key4ce AS213023 Key4ce

🌍 A Records1 records 85ms

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 Records2 records 86ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	bybolig-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::c 2a01:111:f403:ca09::2 2a01:111:f403:ca09::f 52.101.68.32 52.101.73.11 52.101.73.15 52.101.73.22	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am9pr04cu00107.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
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 Key4ce AS213023 Key4ce

📧 Autodiscover / Autoconfig

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

🔷 AAAA Records (IPv6)1 records 77ms

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 Records3 records 599ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC153ms

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

🏷️ SOA0ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

85ms

MX

86ms

AAAA

77ms

TXT

599ms

CAA

71ms

HTTPS

96ms

TLSA

304ms

SOA

0ms

MTA-STS

134ms

DNSSEC

153ms

SRV

193ms

Total

1778ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 06:57:38	1778ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-27 07:51:05	1839ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-25 00:12:17	1502ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-24 17:49:45	2632ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-20 19:48:43	2839ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 18:05:36	807ms	3 NS 1 A 2 MX	🔓 Insecure	View