jysk-byg.dk DNS records

🖥️ Nameservers4 records 31ms

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 Records1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	jyskbyg-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 52.101.68.12 52.101.68.25 52.101.68.3 52.101.73.11	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.104.116.24
🔶 Autoconfig	93.191.156.245

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 82ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 126ms

TXT Record
MS=ms65005849
v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 include:spf.simply.com -all

✉️ SPF

Policy	Record (jysk-byg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 include:spf.simply.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)

🔐 DNSSEC84ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'jysk-byg.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA49ms

Field	Value
Serial	2020080302
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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

44ms

MX

41ms

AAAA

30ms

TXT

126ms

CAA

29ms

HTTPS

28ms

TLSA

140ms

SOA

49ms

MTA-STS

40ms

DNSSEC

84ms

SRV

82ms

Total

779ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-26 02:52:57	779ms	4 NS 1 A 1 MX	❓ Unknown	View
2026-06-17 13:37:14	2510ms	4 NS 1 A 1 MX	🔒 Secure	View