ta-bu.dk DNS records

🖥️ Nameservers3 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
helium.ns.hetzner.de	193.47.99.5 2001:67c:192c::add:5	helium.ns.hetzner.de helium.ns.hetzner.de	AS12337 noris network AG AS12337 noris network AG
hydrogen.ns.hetzner.com	213.133.100.98 2a01:4f8:0:1::add:1098	hydrogen.ns.hetzner.com hydrogen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com	2a01:4f8:0:1::add:2992 88.198.229.192	oxygen.ns.hetzner.com oxygen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
142.132.172.77	3599s	linux2.itfirmaet.dk	AS24940	Hetzner Online GmbH	142.132.128.0/17	🇩🇪 Germany	Nuremberg

📧 MX Records3 records 87ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.spamexperts.com	154.59.104.23 2001:978:2:2c::137:100	fe2-r3-in.ams14.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com	AS43054 N-able Acquisition Company B.V. AS174 Cogent Communications, LLC
20	3600s	fallbackmx.spamexperts.eu	149.13.75.27 154.59.104.23 154.59.193.124 2001:978:2:2c::137:100 2001:978:2:6::f:124 2001:978:2:7::162:100	fe1-r3-in.fra02.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com fe3-r3-in.du01.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com fe3-r3-in.du01.l.antispamcloud.com fe1-r3-in.fra02.l.antispamcloud.com	AS16633 N-able Technologies, Inc. AS43054 N-able Acquisition Company B.V. AS16633 N-able Technologies, Inc. AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC
30	3600s	lastmx.spamexperts.net	149.13.75.27 154.59.104.23 2001:550:2:3::62:100 2001:550:2:61::2fc:100 2001:978:2:2c::137:100 2001:978:2:7::162:100 38.71.16.244 38.89.254.156	fe1-r3-in.fra02.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com fe2-r2-in.la10.l.antispamcloud.com — fe2-r3-in.ams14.l.antispamcloud.com fe1-r3-in.fra02.l.antispamcloud.com fe2-r2-in.la10.l.antispamcloud.com fe1-r2-in.ch03.l.antispamcloud.com	AS16633 N-able Technologies, Inc. AS43054 N-able Acquisition Company B.V. AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC AS16633 N-able Technologies, Inc. AS16633 N-able Technologies, Inc.

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 336ms

TXT Record
v=spf1 mx a include:spf.itfirmaet.dk -all

✉️ SPF

Policy	Record (ta-bu.dk)
-all (hard fail)	v=spf1 mx a include:spf.itfirmaet.dk -all

📨 DMARC

Policy	Record (_dmarc.ta-bu.dk)
p=reject	v=DMARC1; p=reject; ruf=mailto:dmarc@itfirmaet.dk;

📬 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)

🔐 DNSSEC93ms

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

🏷️ SOA51ms

Field	Value
Serial	2026010700
Primary NS (MNAME)	hydrogen.ns.hetzner.com
Responsible (RNAME)	dns@hetzner.com
Refresh	86400s
Retry	10800s
Expire	3600000s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

88ms

MX

87ms

AAAA

73ms

TXT

336ms

CAA

112ms

HTTPS

44ms

TLSA

108ms

SOA

51ms

MTA-STS

78ms

DNSSEC

93ms

SRV

100ms

Total

1122ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-27 11:34:18	1122ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-06-26 01:21:43	3001ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-06-20 06:55:36	1242ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-06-17 14:06:44	2312ms	3 NS 1 A 3 MX	⚠️ Bogus	View