kostboost.dk DNS records

🖥️ Nameservers2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns-parking.com	162.159.24.201 2400:cb00:2049:1::a29f:18c9	ns1.dns-parking.com —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ns2.dns-parking.com	162.159.25.42 2400:cb00:2049:1::a29f:192a	ns2.dns-parking.com —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	mail.tutanota.de	185.205.69.211 185.205.69.213 185.205.69.214	mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de	AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 309ms

TXT Record
brevo-code:8f05babacc67ac3d3b5803bc0589ab19
openai-domain-verification=dv-hVgbc6GL3WJ2olm7jRSySA7V
t-verify=b6f23561649ea802799a034ddc122075
v=spf1 include:spf.tutanota.de -all

✉️ SPF

Policy	Record (kostboost.dk)
-all (hard fail)	v=spf1 include:spf.tutanota.de -all

📨 DMARC

Policy	Record (_dmarc.kostboost.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 MTA-STS399ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20190723
max_age	86400s
Policy MX	mail.tutanota.de

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE2 records 93ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.tutanota.de	DANE-EE · SPKI · SHA-256	5AE0D6DC8A713441003F578C5A1D4D70…
SMTP _25._tcp.mail.tutanota.de	DANE-EE · Full cert · SHA-256	D141F8F3A4AAC2E4D2677AAFCC723D8E…

🔐 DNSSEC127ms

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	2026090301
Primary NS (MNAME)	ns1.dns-parking.com
Responsible (RNAME)	dns@hostinger.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

32ms

A

64ms

MX

53ms

AAAA

60ms

TXT

309ms

CAA

46ms

HTTPS

66ms

TLSA

93ms

SOA

0ms

MTA-STS

399ms

DNSSEC

127ms

SRV

276ms

Total

872ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 02:53:11	872ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-27 13:22:43	796ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-20 05:03:30	5769ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-14 01:07:42	3455ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-09 00:08:51	1413ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-01 19:25:32	952ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-23 07:32:17	8949ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-16 10:21:13	8979ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-09 21:46:05	2478ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-03 14:31:54	882ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-25 13:32:52	1002ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-24 12:55:38	1072ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-20 01:47:23	1279ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-19 04:45:38	1850ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-18 01:16:26	746ms	2 NS 0 A 1 MX	🔓 Insecure	View