kostboost.dk

📜 Historical scan 2026-10-15 05:17:20  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kostboost.dk is a .dk domain served by 2 nameservers (ns1.dns-parking.com, ns2.dns-parking.com). It was registered on 27 August 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.tutanota.de. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   55ms
NameserverIP addressesPTRASN / 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 Records#

1 records   62ms
PriorityTTLMail ServerIP addressesPTRASN
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 Records#

4 records   337ms
TXT Record
brevo-code:8f05babacc67ac3d3b5803bc0589ab19
openai-domain-verification=dv-hVgbc6GL3WJ2olm7jRSySA7V
t-verify=b6f23561649ea802799a034ddc122075
v=spf1 include:spf.tutanota.de -all

✉️ SPF#

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

📨 DMARC#

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

📬 MTA-STS#

404ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20190723
max_age86400s
Policy MXmail.tutanota.de

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-24 17:25:32
www CNAMEkostboost.dk (all on kostboost.dk)
www vs bare domainNeither resolves
kostboost.dk: no address
www.kostboost.dk: no address
WildcardNo

✍️ DKIM keys#

2 found
SelectorCNAMEKey
s1 s1.domainkey.tutanota.de RSA · ~2048 bit
s2 s2.domainkey.tutanota.de RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records   130ms
Service / OwnerTypeCert 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…

🔐 DNSSEC#

83ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

64ms
FieldValue
Serial2026101501
Primary NS (MNAME)ns1.dns-parking.com
Responsible (RNAME)dns@hostinger.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-22 10:15:17
FieldValue
RegistrarRealtime Register B.V.
Registered2025-08-27
Expires2027-08-26 (304d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
55ms
A
68ms
MX
62ms
AAAA
53ms
TXT
337ms
CAA
74ms
HTTPS
65ms
TLSA
130ms
SOA
64ms
MTA-STS
404ms
DNSSEC
83ms
SRV
256ms
Total
860ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 17:25:32 1211ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-22 09:51:14 1729ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-20 22:21:08 864ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-15 05:17:20 shown 860ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-09 09:34:08 2184ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-08 09:25:51 1089ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-03 07:59:34 760ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-01 07:54:49 936ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-30 07:47:55 840ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-24 10:32:18 835ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-24 00:14:19 1483ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-14 21:32:44 1220ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-05 02:53:11 872ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-27 13:22:43 796ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-20 05:03:30 5769ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-14 01:07:42 3455ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-09 00:08:51 1413ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-01 19:25:32 952ms 2 NS 0 A 1 MX 🔓 Insecure
2026-07-23 07:32:17 8949ms 2 NS 0 A 1 MX 🔓 Insecure
2026-07-16 10:21:13 8979ms 2 NS 0 A 1 MX 🔓 Insecure
2026-07-09 21:46:05 2478ms 2 NS 0 A 1 MX 🔓 Insecure
2026-07-03 14:31:54 882ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-25 13:32:52 1002ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-24 12:55:38 1072ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-20 01:47:23 1279ms 2 NS 0 A 1 MX 🔓 Insecure
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