cas-byg.dk DNS records

🖥️ Nameservers2 records 46ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gnrx.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.gnrx.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.7.118	3600s	dedi2397.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	casbyg-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca04::5 2a01:111:f403:ca04::9 52.101.68.29 52.101.68.39 52.101.73.28 52.101.73.6	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.98.16.71
🔶 Autoconfig	78.46.7.118

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 186ms

TXT Record
google-site-verification=bz9qL4KcCuSK-CFdy5n1RmE9oVROghn8AsxGdo9ZcqY
MS=ms60544666
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cas-byg.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

🔗 TLSA / DANE

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

🔐 DNSSEC57ms

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

🏷️ SOA41ms

Field	Value
Serial	2025122301
Primary NS (MNAME)	ns1.gnrx.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

46ms

A

85ms

MX

59ms

AAAA

39ms

TXT

186ms

CAA

49ms

HTTPS

108ms

TLSA

192ms

SOA

41ms

MTA-STS

57ms

DNSSEC

57ms

SRV

293ms

Total

748ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-21 17:52:00	748ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 09:23:46	6358ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:28:47	9571ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 19:43:07	1817ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 19:30:37	676ms	2 NS 1 A 1 MX	🔒 Secure	View