matematikforsjov.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
brad.ns.cloudflare.com	108.162.193.105 172.64.33.105 173.245.59.105 2606:4700:58::adf5:3b69 2803:f800:50::6ca2:c169 2a06:98c1:50::ac40:2169	brad.ns.cloudflare.com brad.ns.cloudflare.com brad.ns.cloudflare.com brad.ns.cloudflare.com brad.ns.cloudflare.com brad.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
raquel.ns.cloudflare.com	108.162.194.210 162.159.38.210 172.64.34.210 2606:4700:50::a29f:26d2 2803:f800:50::6ca2:c2d2 2a06:98c1:50::ac40:22d2	raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.36.224	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.200.6	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:c806	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:24e0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 53ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.36.224,172.67.200.6 ech=AEX+DQBBcwAgACCn/m3LD6MOliaQPm+jB7t8exP6qD3dVyt6ZDX1MabXdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:c806,2606:4700:3032::6815:24e0

📝 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)

🔐 DNSSEC115ms

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	2410056701
Primary NS (MNAME)	brad.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

50ms

A

52ms

MX

32ms

AAAA

50ms

TXT

200ms

CAA

53ms

HTTPS

53ms

TLSA

103ms

SOA

0ms

MTA-STS

107ms

DNSSEC

115ms

SRV

97ms

Total

611ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 05:32:11	611ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-21 22:14:58	9707ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-20 09:05:10	2746ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-26 12:34:44	784ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 20:36:55	2609ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-21 16:51:55	1399ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-20 23:36:18	1111ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 03:30:57	2357ms	2 NS 2 A 0 MX	🔓 Insecure	View