feltopgave.dk

📜 Historical scan 2026-10-05 09:02:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

feltopgave.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, ruth.ns.cloudflare.com). It was registered on 1 October 2026 (WHOIS) and first appeared in the .dk zone on 2 October 2026. Its website address 104.21.29.224 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 37ms

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
104.21.29.224	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 37ms

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

🔷 AAAA Records (IPv6)#

2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:95da	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:1de0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 28ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.224,172.67.149.218 ech=AEX+DQBBwgAgACDZO1T5WuN7UdX7qB2n+oS+FlwBLdwX7XoZ18CbfwPkdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:95da,2606:4700:3035::6815:1de0

📝 TXT Records#

1 records 163ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.feltopgave.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#

11 records 28ms

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	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 2026-10-14 02:11:54

www	104.21.29.224 172.67.149.218 2606:4700:3031::ac43:95da 2606:4700:3035::6815:1de0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network feltopgave.dk: 104.21.29.224 172.67.149.218 2606:4700:3031::ac43:95da 2606:4700:3035::6815:1de0 (AS13335) www.feltopgave.dk: 104.21.29.224 172.67.149.218 2606:4700:3031::ac43:95da 2606:4700:3035::6815:1de0 (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#

120ms

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

🏷️ SOA#

39ms

Field	Value
Serial	2416631742
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 2026-10-14 02:42:33

Field	Value
Registrar	ONE.COM A/S
Registered	2026-10-01
Expires	2027-09-30 (340d)

🔗 Same registrant#

18 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).

Domain	Registrar
arbejdsordre.dk	ONE.COM A/S
arbejdsordrer.dk	ONE.COM A/S
arbejdsseddel.dk	ONE.COM A/S
c16k.dk	Punktum dk A/S (direct)
delditid.dk	Punktum dk A/S (direct)
driftssystem.dk	ONE.COM A/S
fakturagrundlag.dk	ONE.COM A/S
felt-plan.dk	ONE.COM A/S
feltplan.dk	ONE.COM A/S
feltplanner.dk	ONE.COM A/S
feltrapport.dk	ONE.COM A/S
feltstyring.dk	ONE.COM A/S
fieldplan.dk	ONE.COM A/S
fotodokumentation.dk	ONE.COM A/S
servicearbejde.dk	ONE.COM A/S
servicehistorik.dk	ONE.COM A/S
serviceordre.dk	ONE.COM A/S
serviceordrer.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

37ms

31ms

37ms

AAAA

32ms

TXT

163ms

CAA

28ms

HTTPS

28ms

TLSA

51ms

SOA

39ms

MTA-STS

58ms

DNSSEC

120ms

SRV

68ms

Total

758ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 02:11:54	461ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 13:08:40	783ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-05 09:02:32 shown	758ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-04 08:34:53	996ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 08:31:56	1081ms	2 NS 1 A 1 MX	🔓 Insecure