contactseminar.dk DNS records

🖥️ Nameservers2 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
linda.ns.cloudflare.com	108.162.192.250 172.64.32.250 173.245.58.250 2606:4700:50::adf5:3afa 2803:f800:50::6ca2:c0fa 2a06:98c1:50::ac40:20fa	linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com linda.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mario.ns.cloudflare.com	108.162.193.203 172.64.33.203 173.245.59.203 2606:4700:58::adf5:3bcb 2803:f800:50::6ca2:c1cb 2a06:98c1:50::ac40:21cb	mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com mario.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 74ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.15.83	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.161.248	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 74ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:f53	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:a1f8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 80ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.15.83,172.67.161.248 ech=AEX+DQBBvAAgACAjBvVHkFpqArpRl920aDwCdfppSK52abJazKltW9VlRAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:f53,2606:4700:3037::ac43:a1f8

📝 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	2409371426
Primary NS (MNAME)	linda.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

54ms

A

74ms

MX

61ms

AAAA

74ms

TXT

230ms

CAA

84ms

HTTPS

80ms

TLSA

134ms

SOA

0ms

MTA-STS

110ms

DNSSEC

120ms

SRV

101ms

Total

820ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 16:30:37	820ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-16 14:43:36	24602ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-15 12:56:48	8684ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-28 14:15:53	1544ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-27 13:35:11	730ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-19 22:11:50	977ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-16 22:11:55	395ms	2 NS 2 A 0 MX	❓ Unknown	View