koro.dk DNS records

🖥️ Nameservers3 records 58ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.domainoffensive.de	192.174.68.21 2001:67c:1bc::21	ns1.mainns.de ns1.mainns.de	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.domainoffensive.eu	176.97.158.21 2001:67c:10b8::21	ns2.mainns.eu ns2.mainns.eu	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.domainoffensive.net	192.174.68.20 2001:67c:1bc::20	ns3.mainns.net ns3.mainns.net	AS1921 ipcom GmbH AS1921 ipcom GmbH

🌍 A Records3 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
116.202.21.136	900s	cs3.web-redirect.eu	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Falkenstein
116.202.9.166	900s	cs1.web-redirect.eu	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Falkenstein
116.203.213.72	900s	cs2.web-redirect.eu	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records2 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mx01.mail-redirect.de	2a01:4f8:1c17:52e9::1 88.99.82.73	mx01.mail-redirect.de mx01.mail-redirect.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
10	86400s	mx02.mail-redirect.eu	159.69.107.183 2a01:4f8:c2c:9ff::1	mx02.mail-redirect.eu mx02.mail-redirect.eu	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)3 records 57ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:c010:3f9c::1	900s	cs1.web-redirect.eu	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein
2a01:4f8:c17:c19c::1	900s	cs3.web-redirect.eu	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein
2a01:4f8:c2c:abf5::1	900s	cs2.web-redirect.eu	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 230ms

TXT Record
v=spf1 mx mx:mx01.mail-redirect.de mx:mx02.mail-redirect.eu ~all

✉️ SPF

Policy	Record (koro.dk)
~all (soft fail)	v=spf1 mx mx:mx01.mail-redirect.de mx:mx02.mail-redirect.eu ~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 / DANE2 records 1588ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx01.mail-redirect.de	DANE-EE · SPKI · SHA-256	BBA35B39E66666AA437CE368B6960F49…
SMTP _25._tcp.mx02.mail-redirect.eu	DANE-EE · SPKI · SHA-256	BBA35B39E66666AA437CE368B6960F49…

🔐 DNSSEC107ms

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	1784791301
Primary NS (MNAME)	ns1.domainoffensive.de
Responsible (RNAME)	info@domains.resellerinterface.de
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	900s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

58ms

A

39ms

MX

61ms

AAAA

57ms

TXT

230ms

CAA

53ms

HTTPS

53ms

TLSA

1588ms

SOA

0ms

MTA-STS

68ms

DNSSEC

107ms

SRV

577ms

Total

3193ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 08:35:01	3193ms	3 NS 3 A 2 MX	🔓 Insecure	View
2026-07-24 10:43:24	11037ms	3 NS 3 A 2 MX	🔓 Insecure	View
2026-06-27 00:20:41	1292ms	3 NS 3 A 2 MX	🔓 Insecure	View
2026-06-24 23:07:03	1111ms	3 NS 3 A 2 MX	🔓 Insecure	View
2026-06-17 13:34:24	1435ms	3 NS 3 A 2 MX	🔓 Insecure	View