filterteknik.dk

📜 Historical scan 2026-06-17 10:08:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

filterteknik.dk is a .dk domain served by 2 nameservers (sandra.ns.cloudflare.com, trevor.ns.cloudflare.com). It was registered on 12 May 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.94.173 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by filterteknik-dk.mail.protection.outlook.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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
sandra.ns.cloudflare.com	108.162.194.34 162.159.38.34 172.64.34.34 2606:4700:50::a29f:2622 2803:f800:50::6ca2:c222 2a06:98c1:50::ac40:2222	sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
trevor.ns.cloudflare.com	108.162.195.154 162.159.44.154 172.64.35.154 2606:4700:58::a29f:2c9a 2803:f800:50::6ca2:c39a 2a06:98c1:50::ac40:239a	trevor.ns.cloudflare.com trevor.ns.cloudflare.com trevor.ns.cloudflare.com trevor.ns.cloudflare.com trevor.ns.cloudflare.com trevor.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.94.173	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.138.210	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	filterteknik-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::c 2a01:111:f403:ca09::9 2a01:111:f403:ca09::c 52.101.68.0 52.101.68.10 52.101.73.16 52.101.73.22	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5ead	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8ad2	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.94.173,172.67.138.210 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5ead,2606:4700:3033::ac43:8ad2

📝 TXT Records#

3 records 157ms

TXT Record
MS=ms22372840
tmes=1167399b8281b6997c3e65a70ecbecb8
v=spf1 include:spf.protection.outlook.com include:_spf.synotio.se ~all

✉️ SPF#

Policy	Record (filterteknik.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:_spf.synotio.se ~all

📨 DMARC#

Policy	Record (_dmarc.filterteknik.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@filterteknik.dk; adkim=s; aspf=s; fo=1

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 50ms

Flags	Tag	Value
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 2026-10-15 19:32:00

www	104.21.94.173 172.67.138.210 2606:4700:3030::ac43:8ad2 2606:4700:3035::6815:5ead (AS13335) (address records, no CNAME)
www vs bare domain	Same network filterteknik.dk: 104.21.94.173 172.67.138.210 2606:4700:3030::ac43:8ad2 2606:4700:3035::6815:5ead (AS13335) www.filterteknik.dk: 104.21.94.173 172.67.138.210 2606:4700:3030::ac43:8ad2 2606:4700:3035::6815:5ead (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-filterteknik-dk._domainkey.lekangmaskin.onmicrosoft.com	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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

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

🏷️ SOA#

57ms

Field	Value
Serial	2405068278
Primary NS (MNAME)	sandra.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 00:55:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-05-12
Expires	2027-06-30 (256d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

35ms

38ms

AAAA

36ms

TXT

157ms

CAA

50ms

HTTPS

61ms

TLSA

231ms

SOA

57ms

MTA-STS

44ms

DNSSEC

69ms

SRV

0ms

Total

1261ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 19:31:59	7795ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 01:14:45	1776ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 00:29:18	1818ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 01:08:03	2236ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-22 10:44:22	1994ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 05:09:17	2362ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 17:29:23	1326ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 13:09:58	2799ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-17 16:32:07	5598ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-22 01:00:55	1954ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 00:34:53	1121ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 23:34:57	2465ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 06:25:13	1100ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 22:52:10	883ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 22:23:09	2445ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 11:22:39	1101ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 10:08:57 shown	1261ms	2 NS 2 A 1 MX	🔓 Insecure