fedtfirma.dk

📜 Historical scan 2026-09-10 22:50:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fedtfirma.dk is a .dk domain served by 2 nameservers (addilyn.ns.cloudflare.com, corey.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 103.168.172.37 is hosted by Fastmail Pty Ltd (AS151847) in United States. Mail is handled by mx1.simplelogin.co, mx2.simplelogin.co. The zone is DNSSEC-signed and validates, 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
addilyn.ns.cloudflare.com	108.162.194.217 162.159.38.217 172.64.34.217 2606:4700:50::a29f:26d9 2803:f800:50::6ca2:c2d9 2a06:98c1:50::ac40:22d9	addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com addilyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
corey.ns.cloudflare.com	108.162.195.24 162.159.44.24 172.64.35.24 2606:4700:58::a29f:2c18 2803:f800:50::6ca2:c318 2a06:98c1:50::ac40:2318	corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.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 2046ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
103.168.172.37	298s	www.messagingengine.com	AS151847	Fastmail Pty Ltd	103.168.172.0/24	🇺🇸 United States	Philadelphia
103.168.172.52	298s	www.messagingengine.com	AS151847	Fastmail Pty Ltd	103.168.172.0/24	🇺🇸 United States	Philadelphia

📧 MX Records#

2 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.simplelogin.co	176.119.200.136 176.119.200.136 185.205.70.136 185.205.70.136	mx1.simplelogin.co mx2.simplelogin.co mx1.simplelogin.co mx2.simplelogin.co	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mx2.simplelogin.co	176.119.200.136 176.119.200.136 185.205.70.136 185.205.70.136	mx1.simplelogin.co mx2.simplelogin.co mx1.simplelogin.co mx2.simplelogin.co	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	103.168.172.52
🔶 Autoconfig	103.168.172.37

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 227ms

TXT Record
sl-verification=rrnfyqweijhfwigxqlbbwibubadyhk
v=spf1 include:simplelogin.co ~all

✉️ SPF#

Policy	Record (fedtfirma.dk)
~all (soft fail)	v=spf1 include:simplelogin.co ~all

📨 DMARC#

Policy	Record (_dmarc.fedtfirma.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s

📬 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 2026-10-13 08:01:15

www CNAME	web.messagingengine.com (all on messagingengine.com) → 103.168.172.37 103.168.172.52 (AS151847)
www vs bare domain	Same network fedtfirma.dk: 103.168.172.37 103.168.172.52 (AS151847) www.fedtfirma.dk: 103.168.172.37 103.168.172.52 (AS151847)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	dkim._domainkey.simplelogin.co	RSA · ~1024 bit below 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#

6 records 281ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.simplelogin.co	DANE-TA · SPKI · SHA-256	8D02536C887482BC34FF54E41D2BA659…
SMTP _25._tcp.mx1.simplelogin.co	DANE-TA · SPKI · SHA-256	E5545E211347241891C554A03934CDE9…
SMTP _25._tcp.mx1.simplelogin.co	DANE-EE · SPKI · SHA-256	6B56DC55058100C47BEF4BB8020D2A24…
SMTP _25._tcp.mx2.simplelogin.co	DANE-TA · SPKI · SHA-256	8D02536C887482BC34FF54E41D2BA659…
SMTP _25._tcp.mx2.simplelogin.co	DANE-TA · SPKI · SHA-256	E5545E211347241891C554A03934CDE9…
SMTP _25._tcp.mx2.simplelogin.co	DANE-EE · SPKI · SHA-256	6B56DC55058100C47BEF4BB8020D2A24…

🔐 DNSSEC#

68ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2413907834
Primary NS (MNAME)	addilyn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

37ms

2046ms

44ms

AAAA

33ms

TXT

227ms

CAA

64ms

HTTPS

52ms

TLSA

281ms

SOA

0ms

MTA-STS

62ms

DNSSEC

68ms

SRV

92ms

Total

2807ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 08:01:15	1817ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-29 20:39:37	774ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-27 19:24:31	1718ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-10 22:50:46 shown	2807ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-04 07:32:11	734ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-27 19:03:03	1758ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-26 18:42:40	1165ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-25 02:13:39	17705ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-22 23:38:11	3515ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-15 11:47:02	4420ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-10 13:11:48	1689ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-18 06:06:23	1984ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-24 18:24:03	1618ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-19 09:31:43	1450ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-17 09:34:51	859ms	2 NS 2 A 2 MX	🔒 Secure