sommerkursus.dk DNS records

🖥️ Nameservers2 records 72ms

Nameserver	IP addresses	PTR	ASN / ISP
emma.ns.cloudflare.com	108.162.192.112 172.64.32.112 173.245.58.112 2606:4700:50::adf5:3a70 2803:f800:50::6ca2:c070 2a06:98c1:50::ac40:2070	emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gordon.ns.cloudflare.com	108.162.193.170 172.64.33.170 173.245.59.170 2606:4700:58::adf5:3baa 2803:f800:50::6ca2:c1aa 2a06:98c1:50::ac40:21aa	gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com gordon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.73.214	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.231	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 75ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:49d6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:95e7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 65ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.73.214,172.67.149.231 ech=AEX+DQBBPgAgACD0Qno7dxsZ9Kr4EJT0jm8NWZI6R/SbYtGCyMjeUPF+SAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:49d6,2606:4700:3035::ac43:95e7

📝 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)

🔐 DNSSEC198ms

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	2412815074
Primary NS (MNAME)	emma.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

72ms

A

79ms

MX

70ms

AAAA

75ms

TXT

252ms

CAA

69ms

HTTPS

65ms

TLSA

132ms

SOA

0ms

MTA-STS

76ms

DNSSEC

198ms

SRV

94ms

Total

1285ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 07:44:46	1285ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-21 07:34:29	6021ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 08:39:37	8956ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-16 05:06:49	2707ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-26 23:39:52	753ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-19 20:11:23	2698ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 06:04:45	1117ms	2 NS 2 A 0 MX	🔓 Insecure	View