frederikkrogh.dk

📜 Historical scan 2026-09-21 01:51:49 · ← 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 aspmx1.migadu.com, aspmx2.migadu.com. 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 408ms

Nameserver	IP addresses	PTR	ASN / 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 110ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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#

2 records 111ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3000s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	3000s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	eu1.netbird.services → 54.37.79.68
🔶 Autoconfig	autoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)#

2 records 139ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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 351ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.40.203,172.67.157.6 ech=AEX+DQBBTQAgACA8bf2Rrw+0nK8gpnCg+npCVqZ4qD1kQs3/vLlaSVomBQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:28cb,2606:4700:3037::ac43:9d06

🔌 SRV Records#

2 records 988ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	autodiscover.migadu.com
_imaps._tcp	0	1	993	imap.migadu.com

📝 TXT Records#

2 records 1095ms

TXT Record
hosted-email-verify=jvoaop7j
v=spf1 include:spf.migadu.com -all

✉️ SPF#

Policy	Record (frederikkrogh.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC#

Policy	Record (_dmarc.frederikkrogh.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 04:41:20

www CNAME	eu1.netbird.services (all on netbird.services) → 54.37.79.68 57.129.98.79 (AS16276)
www vs bare domain	Different networks frederikkrogh.dk: 104.21.40.203 172.67.157.6 2606:4700:3036::6815:28cb 2606:4700:3037::ac43:9d06 (AS13335) www.frederikkrogh.dk: 54.37.79.68 57.129.98.79 (AS16276) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.frederikkrogh.dk	hH0vZIE5Rt15Ji6citub1-x0pBonGRsRrgkOsVhxcrs

🔗 TLSA / DANE#

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

🔐 DNSSEC#

436ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415083443
Primary NS (MNAME)	katja.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 01:06:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-08-28
Expires	2027-08-31 (316d)

🔗 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#

408ms

110ms

111ms

AAAA

139ms

TXT

1095ms

CAA

346ms

HTTPS

351ms

TLSA

160ms

SOA

0ms

MTA-STS

664ms

DNSSEC

436ms

SRV

988ms

Total

2331ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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 shown	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	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