devzero.dk DNS records

🖥️ Nameservers2 records 80ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records

🌍

No A records found

📧 MX Records2 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx01.kolabnow.com	185.254.79.30 185.254.79.31	kolabnow.com kolabnow.com	AS15576 NTS workspace AG AS15576 NTS workspace AG
20	—	mx02.kolabnow.com	185.254.79.30 185.254.79.31 185.254.79.32 185.254.79.33 185.254.79.34 185.254.79.35 185.254.79.36 185.254.79.37 185.254.79.38 185.254.79.39 185.254.79.40 185.254.79.41 185.254.79.42 185.254.79.43 185.254.79.44 185.254.79.45 185.254.79.46 185.254.79.47	kolabnow.com kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com mx.kolabnow.com	AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG AS15576 NTS workspace AG

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 174ms

TXT Record
v=spf1 mx mx:mykolab.com mx:kolabnow.com -all

✉️ SPF

Policy	Record (devzero.dk)
-all (hard fail)	v=spf1 mx mx:mykolab.com mx:kolabnow.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 / DANE4 records 125ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx01.kolabnow.com	DANE-EE · Full cert · SHA-256	41B01929AFEBCF769577C1B3B9D41F0B…
SMTP _25._tcp.mx01.kolabnow.com	DANE-EE · Full cert · SHA-256	C48641B0A3AA38C42B6C5BFD42A25D63…
SMTP _25._tcp.mx02.kolabnow.com	DANE-EE · Full cert · SHA-256	C48641B0A3AA38C42B6C5BFD42A25D63…
SMTP _25._tcp.mx02.kolabnow.com	DANE-EE · Full cert · SHA-256	41B01929AFEBCF769577C1B3B9D41F0B…

🔐 DNSSEC197ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA63ms

Field	Value
Serial	2026061001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

80ms

A

83ms

MX

65ms

AAAA

76ms

TXT

174ms

CAA

71ms

HTTPS

74ms

TLSA

125ms

SOA

63ms

MTA-STS

169ms

DNSSEC

197ms

SRV

0ms

Total

1120ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 14:58:23	2135ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-08-28 10:20:16	1046ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-08-26 18:10:21	2033ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-08-11 01:43:10	4878ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-07-15 17:39:20	1969ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-07-11 06:02:08	2307ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-06-17 02:38:57	3270ms	2 NS 0 A 2 MX	🔒 Secure	View
2026-06-17 02:31:05	1120ms	2 NS 0 A 2 MX	🔒 Secure	View