critech.dk

Records from scan: 2026-10-14 16:04:06 · 2767ms total · last checked 2026-10-16 18:54 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

critech.dk is a .dk domain served by 2 nameservers (isla.ns.cloudflare.com, johnathan.ns.cloudflare.com). It was registered on 14 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.237 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 117ms

Nameserver	IP addresses	PTR	ASN / ISP
isla.ns.cloudflare.com	108.162.192.119 172.64.32.119 173.245.58.119 2606:4700:50::adf5:3a77 2803:f800:50::6ca2:c077 2a06:98c1:50::ac40:2077	isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
johnathan.ns.cloudflare.com	108.162.195.44 162.159.44.44 172.64.35.44 2606:4700:58::a29f:2c2c 2803:f800:50::6ca2:c32c 2a06:98c1:50::ac40:232c	johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.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 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.237	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.188.92	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 152ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c03::1b	rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.179.20.27 2404:6800:4000:1027::1b	ncboms-in-f27.1e100.net ncboms-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.179.20.26 2404:6800:4000:1027::1b	ncboms-in-f26.1e100.net ncboms-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.188.92
🔶 Autoconfig	172.67.188.92

🔷 AAAA Records (IPv6)#

2 records 128ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:bc5c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:30ed	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 141ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.237,172.67.188.92 ech=AEX+DQBBEwAgACABAWTjdCgETEUk4kqQAGNh1Bi7jAmXQlIF2T2/xgUMcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:bc5c,2606:4700:3036::6815:30ed

📝 TXT Records#

3 records 225ms

TXT Record
google-site-verification=hc-mT6Xt_9hTomUkbqEU8Ixx4Ny...
MS=426C2A6769AAE17FC0FE23CD791757276698E416
v=spf1 include:_spf.google.com -all

✉️ SPF#

Policy	Record (critech.dk)
-all (hard fail)	v=spf1 include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.critech.dk)
p=reject	v=DMARC1; p=reject; pct=100; aspf=s; adkim=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#

checked 2026-10-14 16:04:07

www	104.21.48.237 172.67.188.92 2606:4700:3031::ac43:bc5c 2606:4700:3036::6815:30ed (AS13335) (address records, no CNAME)
www vs bare domain	Same network critech.dk: 104.21.48.237 172.67.188.92 2606:4700:3031::ac43:bc5c 2606:4700:3036::6815:30ed (AS13335) www.critech.dk: 104.21.48.237 172.67.188.92 2606:4700:3031::ac43:bc5c 2606:4700:3036::6815:30ed (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~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#

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

🔐 DNSSEC#

203ms

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

🏷️ SOA#

73ms

Field	Value
Serial	2417460149
Primary NS (MNAME)	isla.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 18:51:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-10-14
Expires	2026-10-31 (14d)

🔗 Same registrant#

2 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
strøm-ligning.dk	ONE.COM A/S
strømlignet.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

117ms

112ms

152ms

AAAA

128ms

TXT

225ms

CAA

146ms

HTTPS

141ms

TLSA

1099ms

SOA

73ms

MTA-STS

125ms

DNSSEC

203ms

SRV

145ms

Total

2767ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 16:04:06 shown	2767ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-08 07:09:56	645ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-30 16:24:20	675ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-27 17:56:37	897ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-25 17:38:50	727ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-23 17:12:31	1772ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-21 06:01:47	776ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-16 20:42:28	1295ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-10 22:53:20	872ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-04 18:52:23	1247ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-03 23:07:20	602ms	2 NS 0 A 5 MX	🔓 Insecure
2026-08-23 11:46:28	3555ms	2 NS 0 A 5 MX	🔓 Insecure
2026-07-15 13:16:38	1363ms	2 NS 0 A 5 MX	🔓 Insecure
2026-06-26 18:06:41	2916ms	2 NS 0 A 5 MX	🔓 Insecure
2026-06-25 14:30:28	956ms	2 NS 0 A 5 MX	🔓 Insecure
2026-06-16 22:55:51	503ms	2 NS 0 A 5 MX	🔓 Insecure