f501.dk

📜 Historical scan 2026-09-13 21:58:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

f501.dk is a .dk domain served by 2 nameservers (achiel.ns.cloudflare.com, lovisa.ns.cloudflare.com). It was registered on 18 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.22 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 126ms

Nameserver	IP addresses	PTR	ASN / ISP
achiel.ns.cloudflare.com	108.162.195.123 162.159.44.123 172.64.35.123 2606:4700:58::a29f:2c7b 2803:f800:50::6ca2:c37b 2a06:98c1:50::ac40:237b	achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lovisa.ns.cloudflare.com	108.162.194.39 162.159.38.39 172.64.34.39 2606:4700:50::a29f:2627 2803:f800:50::6ca2:c227 2a06:98c1:50::ac40:2227	lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.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 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.27.22	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.236	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 115ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	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	300s	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

🔷 AAAA Records (IPv6)#

2 records 142ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:1b16	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:8cec	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 143ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.27.22,172.67.140.236 ech=AEX+DQBBbgAgACBNRmbzoHxfE5zAKrLj0P2qnrANpJg7GhzXedk1fH6QHAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1b16,2606:4700:3031::ac43:8cec

📝 TXT Records#

2 records 326ms

TXT Record
hosted-email-verify=hgqtaa4n
v=spf1 include:spf.migadu.com -all

✉️ SPF#

Policy	Record (f501.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC#

Policy	Record (_dmarc.f501.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 2026-10-07 18:54:11

www	104.21.27.22 172.67.140.236 2606:4700:3031::6815:1b16 2606:4700:3031::ac43:8cec (AS13335) (address records, no CNAME)
www vs bare domain	Same network f501.dk: 104.21.27.22 172.67.140.236 2606:4700:3031::6815:1b16 2606:4700:3031::ac43:8cec (AS13335) www.f501.dk: 104.21.27.22 172.67.140.236 2606:4700:3031::6815:1b16 2606:4700:3031::ac43:8cec (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.f501.dk	F8R4tl0NJ_O9mAhk1kqoACf_pTnMsIV2R73QV6GARF8
TXT	_acme-challenge.f501.dk	LHD8bAGcPfGJ6oSYNBAk8V0qncVRHYsPcp2k5jsytAk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

214ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414706614
Primary NS (MNAME)	achiel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 05:07:05

Field	Value
Registrar	Simply.com A/S
Registered	2025-03-18
Expires	2027-03-17 (147d)

📋 WHOIS#

⏱️ Lookup Timing#

126ms

112ms

115ms

AAAA

142ms

TXT

326ms

CAA

116ms

HTTPS

143ms

TLSA

539ms

SOA

0ms

MTA-STS

124ms

DNSSEC

214ms

SRV

145ms

Total

1868ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-21 11:29:36	1003ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-21 00:40:48	1365ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-13 21:58:47 shown	1868ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-06 20:10:16	2154ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 01:51:20	2984ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 12:37:56	764ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-23 20:26:42	6677ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-04 23:05:38	10637ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 14:35:20	3190ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-23 01:18:33	972ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 09:10:27	1733ms	2 NS 2 A 2 MX	🔓 Insecure