sin-sung.dk DNS records

🖥️ Nameservers2 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
adi.ns.cloudflare.com	108.162.192.56 172.64.32.56 173.245.58.56 2606:4700:50::adf5:3a38 2803:f800:50::6ca2:c038 2a06:98c1:50::ac40:2038	adi.ns.cloudflare.com adi.ns.cloudflare.com adi.ns.cloudflare.com adi.ns.cloudflare.com adi.ns.cloudflare.com adi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
chip.ns.cloudflare.com	108.162.193.84 172.64.33.84 173.245.59.84 2606:4700:58::adf5:3b54 2803:f800:50::6ca2:c154 2a06:98c1:50::ac40:2154	chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.51.21	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.218.122	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:3315	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:da7a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 40ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.51.21,172.67.218.122 ech=AEX+DQBBOwAgACBELX8HcpMzdct4swNxoewyTy2e+KVXyi1rPKLO/FQWMAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3315,2606:4700:3034::ac43:da7a

📝 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)

🔐 DNSSEC128ms

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	2411008658
Primary NS (MNAME)	adi.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

45ms

A

47ms

MX

51ms

AAAA

44ms

TXT

267ms

CAA

45ms

HTTPS

40ms

TLSA

89ms

SOA

0ms

MTA-STS

59ms

DNSSEC

128ms

SRV

78ms

Total

1022ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-02 17:35:38	1022ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-06 05:25:14	1582ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-27 11:12:36	945ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-25 09:26:34	853ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-17 11:59:01	918ms	2 NS 2 A 2 MX	🔓 Insecure	View