mathk.dk DNS records

🖥️ Nameservers2 records 159ms

Nameserver	IP addresses	PTR	ASN / ISP
kami.ns.cloudflare.com	108.162.192.177 172.64.32.177 173.245.58.177 2606:4700:50::adf5:3ab1 2803:f800:50::6ca2:c0b1 2a06:98c1:50::ac40:20b1	kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com kami.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sid.ns.cloudflare.com	108.162.193.143 172.64.33.143 173.245.59.143 2606:4700:58::adf5:3b8f 2803:f800:50::6ca2:c18f 2a06:98c1:50::ac40:218f	sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 159ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.43.18	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.215.218	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 158ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	—	mx1.hostinger.com	172.65.182.103 2606:4700:90:0:c1f8:f874:2386:b61f	— —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
10	—	mx2.hostinger.com	172.65.182.103 2606:4700:90:0:c1f8:f874:2386:b61f	— —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)2 records 158ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:d7da	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:2b12	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 157ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBB5wAgACAfhnj2QjvcLesWssUrB3a5fnOhseRkvqgkI6RuTYeBJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d7da,2606:4700:3036::6815:2b12

📝 TXT Records1 records 2308ms

TXT Record
v=spf1 include:_spf.mail.hostinger.com ~all

✉️ SPF

Policy	Record (mathk.dk)
~all (soft fail)	v=spf1 include:_spf.mail.hostinger.com ~all

📨 DMARC

Policy	Record (_dmarc.mathk.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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)

🔐 DNSSEC275ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA156ms

Field	Value
Serial	2406701568
Primary NS (MNAME)	kami.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

159ms

A

159ms

MX

158ms

AAAA

158ms

TXT

2308ms

CAA

157ms

HTTPS

157ms

TLSA

62ms

SOA

156ms

MTA-STS

95ms

DNSSEC

275ms

SRV

0ms

Total

3121ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-15 17:56:24	4457ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-09 03:06:22	1264ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-05 23:13:43	1643ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-04 11:42:25	2468ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-27 19:02:13	1106ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-24 18:15:48	1136ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-17 15:20:34	3121ms	2 NS 2 A 2 MX	🔓 Insecure	View