problemformulering.dk

📜 Historical scan 2026-10-01 00:40:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

problemformulering.dk is a .dk domain served by 2 nameservers (hazel.ns.cloudflare.com, sergi.ns.cloudflare.com). It was registered on 15 February 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.13.107 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 31ms

Nameserver	IP addresses	PTR	ASN / ISP
hazel.ns.cloudflare.com	108.162.194.157 162.159.38.157 172.64.34.157 2606:4700:50::a29f:269d 2803:f800:50::6ca2:c29d 2a06:98c1:50::ac40:229d	hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com hazel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sergi.ns.cloudflare.com	108.162.195.68 162.159.44.68 172.64.35.68 2606:4700:58::a29f:2c44 2803:f800:50::6ca2:c344 2a06:98c1:50::ac40:2344	sergi.ns.cloudflare.com sergi.ns.cloudflare.com sergi.ns.cloudflare.com sergi.ns.cloudflare.com sergi.ns.cloudflare.com sergi.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.13.107	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.199.214	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:d6b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c7d6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.13.107,172.67.199.214 ech=AEX+DQBBVwAgACCMfw4T3q1qqkYA+bhgMOEBh7kVJ/GYmCvejGjXbxDZFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:d6b,2606:4700:3037::ac43:c7d6

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-22 22:42:48

www	104.21.13.107 172.67.199.214 2606:4700:3033::6815:d6b 2606:4700:3037::ac43:c7d6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network problemformulering.dk: 104.21.13.107 172.67.199.214 2606:4700:3033::6815:d6b 2606:4700:3037::ac43:c7d6 (AS13335) www.problemformulering.dk: 104.21.13.107 172.67.199.214 2606:4700:3033::6815:d6b 2606:4700:3037::ac43:c7d6 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

61ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2413872511
Primary NS (MNAME)	hazel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-23 17:34:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-02-15
Expires	2027-02-14 (113d)

🔗 Same registrant#

750 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
13z.dk	Punktum dk A/S (direct)
1feriebolig.dk	Punktum dk A/S (direct)
1net.dk	Punktum dk A/S (direct)
1outlets.dk	Punktum dk A/S (direct)
2convert.dk	Punktum dk A/S (direct)
2venture.dk	Punktum dk A/S (direct)
2wheels1world.dk	Punktum dk A/S (direct)
3up.dk	Punktum dk A/S (direct)
60dage.dk	Punktum dk A/S (direct)
7kabaler.dk	Punktum dk A/S (direct)
99s.dk	Punktum dk A/S (direct)
aabne-samlinger.dk	Punktum dk A/S (direct)
aarhus-gulvservice.dk	Punktum dk A/S (direct)
abcu.dk	Punktum dk A/S (direct)
ac-fan.dk	Punktum dk A/S (direct)
acaao.dk	Punktum dk A/S (direct)
acoustudio.dk	Punktum dk A/S (direct)
addvaleur.dk	Punktum dk A/S (direct)
admaker.dk	Punktum dk A/S (direct)
agatplus.dk	Punktum dk A/S (direct)
agentcherub.dk	Punktum dk A/S (direct)
ai-linkbuilding.dk	dns.services ApS
airgaze.dk	Punktum dk A/S (direct)
aktie-anbefalinger.dk	Punktum dk A/S (direct)
aktie-app.dk	Punktum dk A/S (direct)
aktie-udbytte.dk	Punktum dk A/S (direct)
aktionslaering.dk	Punktum dk A/S (direct)
almende.dk	Punktum dk A/S (direct)
amagerlinedancers.dk	Punktum dk A/S (direct)
amda.dk	Punktum dk A/S (direct)
amerikanske-aktier.dk	Punktum dk A/S (direct)
anetteqvick.dk	Punktum dk A/S (direct)
anjadahlgaard.dk	Punktum dk A/S (direct)
annettekruse.dk	Punktum dk A/S (direct)
antikhuset.dk	Punktum dk A/S (direct)
apfel-hk.dk	Punktum dk A/S (direct)
aplodesign.dk	Punktum dk A/S (direct)
appsdevelopment.dk	Punktum dk A/S (direct)
artikel-linkbuilding.dk	dns.services ApS
asmussenonline.dk	Punktum dk A/S (direct)
atmosphaera.dk	Punktum dk A/S (direct)
atterbakken.dk	Punktum dk A/S (direct)
autooffer.dk	Punktum dk A/S (direct)
autostol-9-36-kg.dk	Punktum dk A/S (direct)
awshosting.dk	Punktum dk A/S (direct)
babyspejl.dk	Punktum dk A/S (direct)
bachblomsterremedier.dk	Punktum dk A/S (direct)
bagemåtte.dk	Punktum dk A/S (direct)
bagepapir.dk	Punktum dk A/S (direct)
bakuri.dk	Punktum dk A/S (direct)
basiclearning.dk	Punktum dk A/S (direct)
basicwallpapers.dk	Punktum dk A/S (direct)
basis-bolig.dk	Punktum dk A/S (direct)
bballzone.dk	Punktum dk A/S (direct)
bedside-crib.dk	Punktum dk A/S (direct)
bedste-feriebyer.dk	Punktum dk A/S (direct)
bedste-kæledyrsudstyr.dk	Punktum dk A/S (direct)
bedste-linkbuilding.dk	dns.services ApS
bedste-personlig-pleje.dk	Punktum dk A/S (direct)
bedste-træningsudstyr.dk	Punktum dk A/S (direct)
bedste-træningsøvelser.dk	Punktum dk A/S (direct)
belysningsmaterial.dk	Punktum dk A/S (direct)
bestinclass.dk	Punktum dk A/S (direct)
betapp.dk	Punktum dk A/S (direct)
bezh.dk	Punktum dk A/S (direct)
billig-bil.dk	Punktum dk A/S (direct)
billig-ferie-i-udlandet.dk	Punktum dk A/S (direct)
billig-hudpleje.dk	Punktum dk A/S (direct)
billig-håndværker.dk	Punktum dk A/S (direct)
billig-håndværkerhjælp.dk	Punktum dk A/S (direct)
billig-linkbuilding-service-i-danmark.dk	dns.services ApS
billig-mode.dk	Punktum dk A/S (direct)
billig-personlig-pleje.dk	Punktum dk A/S (direct)
billige-designermøbler.dk	Punktum dk A/S (direct)
billige-plejeprodukter.dk	Punktum dk A/S (direct)
billigt-kæledyrsudstyr.dk	Punktum dk A/S (direct)
biludlejningkreta.dk	Punktum dk A/S (direct)
biomega.dk	Punktum dk A/S (direct)
bisstream.dk	Punktum dk A/S (direct)
bjergesoehus.dk	Punktum dk A/S (direct)
blad-journal.dk	Punktum dk A/S (direct)
bloggerland.dk	Punktum dk A/S (direct)
blogguide.dk	Punktum dk A/S (direct)
blogide.dk	Punktum dk A/S (direct)
blogreklame.dk	Punktum dk A/S (direct)
bluepixel.dk	Punktum dk A/S (direct)
boerne-toej.dk	Punktum dk A/S (direct)
boerne.dk	Punktum dk A/S (direct)
boernebogklub.dk	Punktum dk A/S (direct)
boernefamilien.dk	Punktum dk A/S (direct)
boernoghave.dk	Punktum dk A/S (direct)
boksekampen.dk	Punktum dk A/S (direct)
boligboligbolig.dk	Punktum dk A/S (direct)
boligogrenovering.dk	Punktum dk A/S (direct)
boligservicebogen.dk	Punktum dk A/S (direct)
boogiloo.dk	Punktum dk A/S (direct)
boostadventure.dk	Punktum dk A/S (direct)
brandavenue.dk	Punktum dk A/S (direct)
brandngrow.dk	Punktum dk A/S (direct)
brasidor.dk	Punktum dk A/S (direct)

Showing 100 of 750.

📋 WHOIS#

⏱️ Lookup Timing#

31ms

43ms

53ms

AAAA

43ms

TXT

174ms

CAA

38ms

HTTPS

51ms

TLSA

43ms

SOA

40ms

MTA-STS

59ms

DNSSEC

61ms

SRV

67ms

Total

423ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 22:42:48	446ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-21 10:45:43	610ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-04 04:13:19	355ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 00:40:23 shown	423ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-29 20:07:30	641ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 16:42:06	662ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-04 17:23:36	1087ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-30 00:12:35	970ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-26 02:51:02	625ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 05:29:48	3435ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-22 01:30:43	905ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 22:39:31	1121ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 12:06:40	972ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 12:07:38	928ms	4 NS 1 A 1 MX	🔓 Insecure