kjerstein.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ruth.ns.cloudflare.com	108.162.192.143 172.64.32.143 173.245.58.143 2606:4700:50::adf5:3a8f 2803:f800:50::6ca2:c08f 2a06:98c1:50::ac40:208f	ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tim.ns.cloudflare.com	108.162.193.145 172.64.33.145 173.245.59.145 2606:4700:58::adf5:3b91 2803:f800:50::6ca2:c191 2a06:98c1:50::ac40:2191	tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com tim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.1.244	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.128.102	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mxa.mailgun.org	34.36.182.139	139.182.36.34.bc.googleusercontent.com	AS396982 Google LLC
10	300s	mxb.mailgun.org	34.149.254.5	5.254.149.34.bc.googleusercontent.com	AS396982 Google LLC

🔷 AAAA Records (IPv6)2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:1f4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:8066	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.1.244,172.67.128.102 ech=AEX+DQBBBQAgACAbQZebIQhDSFGjV8r8bAgUrIRee0RhxQoxPq63ozC6fgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1f4,2606:4700:3036::ac43:8066

📝 TXT Records1 records 199ms

TXT Record
v=spf1 include:mailgun.org ~all

✉️ SPF

Policy	Record (kjerstein.dk)
~all (soft fail)	v=spf1 include:mailgun.org ~all

📨 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)

🔐 DNSSEC82ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413281112
Primary NS (MNAME)	ruth.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

46ms

MX

41ms

AAAA

40ms

TXT

199ms

CAA

54ms

HTTPS

46ms

TLSA

99ms

SOA

0ms

MTA-STS

70ms

DNSSEC

82ms

SRV

74ms

Total

696ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 05:49:50	696ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-08-27 11:48:18	639ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-08-04 16:39:42	2135ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-19 21:03:44	1632ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-18 18:03:29	1292ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-10 08:24:39	1230ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-27 22:04:57	2825ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-27 06:44:43	1775ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-25 11:59:49	981ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-24 12:06:23	1156ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 08:29:59	1192ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 05:07:17	689ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-17 13:29:06	807ms	2 NS 2 A 2 MX	🔒 Secure	View