frederikkrogh.dk

📜 Historical scan 2026-08-14 00:20:33  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

frederikkrogh.dk is a .dk domain served by 2 nameservers (katja.ns.cloudflare.com, zod.ns.cloudflare.com). It was registered on 28 August 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.203 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.sunstack.eu. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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   38ms
NameserverIP addressesPTRASN / ISP
katja.ns.cloudflare.com 108.162.194.53
162.159.38.53
172.64.34.53
2606:4700:50::a29f:2635
2803:f800:50::6ca2:c235
2a06:98c1:50::ac40:2235		 katja.ns.cloudflare.com
katja.ns.cloudflare.com
katja.ns.cloudflare.com
katja.ns.cloudflare.com
katja.ns.cloudflare.com
katja.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
zod.ns.cloudflare.com 108.162.193.250
172.64.33.250
173.245.59.250
2606:4700:58::adf5:3bfa
2803:f800:50::6ca2:c1fa
2a06:98c1:50::ac40:21fa		 zod.ns.cloudflare.com
zod.ns.cloudflare.com
zod.ns.cloudflare.com
zod.ns.cloudflare.com
zod.ns.cloudflare.com
zod.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.40.203 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.157.6 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   30ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.sunstack.eu 167.233.87.220 mx.sunstack.eu AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermx.sunstack.eu → 167.233.87.220
🔶 Autoconfigmx.sunstack.eu → 167.233.87.220

🔷 AAAA Records (IPv6)#

2 records   45ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3036::6815:28cb 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:9d06 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   45ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.40.203,172.67.157.6 ech=AEX+DQBBuAAgACDQMRpEFv9vEDQRZlKbJdl28UdpJF2s+8qyeT6gIIgFAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:28cb,2606:4700:3037::ac43:9d06

🔌 SRV Records#

1 records   365ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 1 993 mx.sunstack.eu

📝 TXT Records#

1 records   259ms
TXT Record
v=spf1 mx -all

✉️ SPF#

PolicyRecord (frederikkrogh.dk)
-all (hard fail) v=spf1 mx -all

📨 DMARC#

PolicyRecord (_dmarc.frederikkrogh.dk)
p=reject v=DMARC1; p=reject; rua=mailto:postmaster@frederikkrogh.dk

📬 MTA-STS#

186ms
CheckResult
Status⚠️ Invalid
TXT record (_mta-sts)✓ Found
HTTPS policy✗ Missing / invalid
Policy ID9123682475574115667
Policy MX—

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:postmaster@frederikkrogh.dk

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 04:41:20
www CNAMEeu1.netbird.services (all on netbird.services)
www vs bare domainDifferent networks (all like this)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.frederikkrogh.dk hH0vZIE5Rt15Ji6citub1-x0pBonGRsRrgkOsVhxcrs

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

135ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412124996
Primary NS (MNAME)katja.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 01:06:54
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2018-08-28
Expires2027-08-31 (317d)

🔗 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
38ms
A
53ms
MX
30ms
AAAA
45ms
TXT
259ms
CAA
39ms
HTTPS
45ms
TLSA
333ms
SOA
0ms
MTA-STS
186ms
DNSSEC
135ms
SRV
365ms
Total
1568ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-18 04:41:20 1712ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-11 20:16:44 2750ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-30 12:28:57 2709ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-27 07:51:23 6842ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-21 01:51:49 2331ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-08 03:25:32 1267ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-07 07:57:23 2549ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-31 05:09:13 2699ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 22:41:28 1409ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-18 16:16:29 3762ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-17 01:41:00 1274ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-14 00:20:33 shown 1568ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-05 21:44:39 2709ms 2 NS 2 A 3 MX 🔓 Insecure
2026-08-03 07:48:36 2387ms 2 NS 2 A 3 MX 🔓 Insecure
2026-07-20 19:55:09 28360ms 2 NS 2 A 3 MX 🔓 Insecure
2026-07-09 04:51:17 11463ms 2 NS 2 A 3 MX 🔓 Insecure
2026-06-17 10:17:46 3246ms 2 NS 2 A 3 MX 🔓 Insecure
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