firstflush.dk DNS records

🖥️ Nameservers2 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 104ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.73	3600s	webcluster1.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 112ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod9-cph3.one.com	185.164.14.118	mx1.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod9-cph3.one.com	185.164.14.119	mx2.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod9-cph3.one.com	185.164.14.120	mx3.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod9-cph3.one.com	185.164.14.124	mx4.pub.mailpod9-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 72ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:48:21f3:8057:4517	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.firstflush.dk	CyHlBOg3HrBkr0hsK5tTji_wEBqe-bir--wNoNdhI8w

🔗 TLSA / DANE4 records 345ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…

🔐 DNSSEC244ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082301
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

79ms

A

104ms

MX

112ms

AAAA

72ms

TXT

381ms

CAA

101ms

HTTPS

78ms

TLSA

345ms

SOA

0ms

MTA-STS

128ms

DNSSEC

244ms

SRV

170ms

Total

2242ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 18:17:52	593ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-25 16:29:43	674ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-24 15:36:49	904ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-23 06:01:18	2242ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-16 15:38:15	1006ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-12 22:50:50	4925ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 06:27:16	1342ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 10:56:27	677ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 19:48:14	1857ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 10:03:53	694ms	2 NS 1 A 4 MX	🔒 Secure	View