feltsystem.dk

📜 Historical scan 2026-10-10 08:37:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

feltsystem.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 9 October 2026 (WHOIS) and first appeared in the .dk zone on 10 October 2026. Its website address 104.21.40.245 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ivan.ns.cloudflare.com	108.162.193.120 172.64.33.120 173.245.59.120 2606:4700:58::adf5:3b78 2803:f800:50::6ca2:c178 2a06:98c1:50::ac40:2178	ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ruth.ns.cloudflare.com	108.162.192.143 172.64.32.143 173.245.58.143 2606:4700:50::adf5:3a8f 2803:f800:50::6ca2:c08f 2a06:98c1:50::ac40:208f	ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.40.245	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.100	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:28f5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:8c64	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.40.245,172.67.140.100 ech=AEX+DQBBFAAgACDGQenGDs0xPPX1275oaReGJkusc0cRrB+n3gRmiTS6SwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:28f5,2606:4700:3037::ac43:8c64

📝 TXT Records#

2 records 164ms

TXT Record
v=DKIM1; p=
v=spf1 -all

✉️ SPF#

Policy	Record (feltsystem.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.feltsystem.dk)
p=reject	v=DMARC1; p=reject; sp=reject

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

12 records 40ms

Flags	Tag	Value
0	issue	;
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	;
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 21:25:25

www	104.21.40.245 172.67.140.100 2606:4700:3031::6815:28f5 2606:4700:3037::ac43:8c64 (AS13335) (address records, no CNAME)
www vs bare domain	Same network feltsystem.dk: 104.21.40.245 172.67.140.100 2606:4700:3031::6815:28f5 2606:4700:3037::ac43:8c64 (AS13335) www.feltsystem.dk: 104.21.40.245 172.67.140.100 2606:4700:3031::6815:28f5 2606:4700:3037::ac43:8c64 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

58ms

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

🏷️ SOA#

26ms

Field	Value
Serial	2417032650
Primary NS (MNAME)	ivan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 08:48:38

Field	Value
Registrar	ONE.COM A/S
Registered	2026-10-09
Expires	2027-10-08 (349d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

31ms

48ms

AAAA

41ms

TXT

164ms

CAA

40ms

HTTPS

41ms

TLSA

50ms

SOA

26ms

MTA-STS

67ms

DNSSEC

58ms

SRV

59ms

Total

429ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 21:25:25	1785ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-10 08:37:08 shown	429ms	2 NS 2 A 1 MX	🔓 Insecure