4j.dk DNS records

🖥️ Nameservers2 records 156ms

Nameserver	IP addresses	PTR	ASN / ISP
brenda.ns.cloudflare.com	108.162.192.77 172.64.32.77 173.245.58.77 2606:4700:50::adf5:3a4d 2803:f800:50::6ca2:c04d 2a06:98c1:50::ac40:204d	brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
randy.ns.cloudflare.com	108.162.195.109 162.159.44.109 172.64.35.109 2606:4700:58::a29f:2c6d 2803:f800:50::6ca2:c36d 2a06:98c1:50::ac40:236d	randy.ns.cloudflare.com randy.ns.cloudflare.com randy.ns.cloudflare.com randy.ns.cloudflare.com randy.ns.cloudflare.com randy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 146ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.69.38	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.204.19	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 143ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	120s	mail.4j.dk	91.107.194.126	static.126.194.107.91.clients.your-server.de	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)2 records 82ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4526	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:cc13	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 196ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.69.38,172.67.204.19 ech=AEX+DQBBcAAgACBV/Zb5wHhwHaTFZTaHf11B2qZwTkWmffxMbdJAki9BNgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4526,2606:4700:3037::ac43:cc13

📝 TXT Records1 records 396ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (4j.dk)
-all (hard fail)	v=spf1 -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)

🔐 DNSSEC338ms

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	2413483411
Primary NS (MNAME)	brenda.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

156ms

A

146ms

MX

143ms

AAAA

82ms

TXT

396ms

CAA

77ms

HTTPS

196ms

TLSA

149ms

SOA

0ms

MTA-STS

242ms

DNSSEC

338ms

SRV

211ms

Total

2074ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 07:58:53	2074ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-28 06:18:07	695ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-03 05:54:14	8918ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-23 15:07:58	928ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-27 06:47:07	817ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 12:39:25	2580ms	2 NS 2 A 1 MX	🔓 Insecure	View