kosternet.dk DNS records

🖥️ Nameservers2 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
devin.ns.cloudflare.com	108.162.195.49 162.159.44.49 172.64.35.49 2606:4700:58::a29f:2c31 2803:f800:50::6ca2:c331 2a06:98c1:50::ac40:2331	devin.ns.cloudflare.com devin.ns.cloudflare.com devin.ns.cloudflare.com devin.ns.cloudflare.com devin.ns.cloudflare.com devin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
serenity.ns.cloudflare.com	108.162.194.108 162.159.38.108 172.64.34.108 2606:4700:50::a29f:266c 2803:f800:50::6ca2:c26c 2a06:98c1:50::ac40:226c	serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com serenity.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records5 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b 64.233.163.27	lf-in-f27.1e100.net lf-in-x1b.1e100.net lj-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 238ms

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

✉️ SPF

Policy	Record (kosternet.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.kosternet.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:thomas@kampvogn.dk

📬 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)

🔐 DNSSEC99ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2410806316
Primary NS (MNAME)	devin.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

64ms

A

65ms

MX

61ms

AAAA

74ms

TXT

238ms

CAA

71ms

HTTPS

64ms

TLSA

89ms

SOA

0ms

MTA-STS

73ms

DNSSEC

99ms

SRV

96ms

Total

1457ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 04:14:24	1457ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-08-07 16:39:11	9488ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-07-21 15:33:41	10534ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-06-27 15:26:14	1201ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-06-18 04:12:18	824ms	2 NS 0 A 5 MX	🔓 Insecure	View