a4sund.dk DNS records

🖥️ Nameservers2 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
dave.ns.cloudflare.com	108.162.193.109 172.64.33.109 173.245.59.109 2606:4700:58::adf5:3b6d 2803:f800:50::6ca2:c16d 2a06:98c1:50::ac40:216d	dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marge.ns.cloudflare.com	108.162.192.191 172.64.32.191 173.245.58.191 2606:4700:50::adf5:3abf 2803:f800:50::6ca2:c0bf 2a06:98c1:50::ac40:20bf	marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.23.223	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.248	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:d5f8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:17df	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.223,172.67.213.248 ech=AEX+DQBBpAAgACANEvMQAXgBwVfzuGUlBKfZaE68CiirdMGu1orPSr7aVQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:d5f8,2606:4700:3037::6815:17df

📝 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

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC120ms

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	2412437644
Primary NS (MNAME)	dave.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

69ms

A

41ms

MX

39ms

AAAA

53ms

TXT

214ms

CAA

65ms

HTTPS

39ms

TLSA

53ms

SOA

0ms

MTA-STS

99ms

DNSSEC

120ms

SRV

57ms

Total

653ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 09:06:18	653ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-18 11:04:52	972ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-16 19:52:29	868ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-06 09:33:51	1087ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-04 13:07:30	4121ms	2 NS 2 A 0 MX	❓ Unknown	View
2026-06-24 13:41:34	835ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-21 05:05:58	2012ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-19 06:19:51	697ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 09:34:24	1378ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-16 13:15:07	471ms	2 NS 2 A 0 MX	🔓 Insecure	View