critech.dk DNS records

🖥️ Nameservers2 records 85ms

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

🌍

No A records found

📧 MX Records5 records 101ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	142.251.127.26 2a00:1450:4010:c22::1a	lcfrai-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.48.237
🔶 Autoconfig	172.67.188.92

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 291ms

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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.critech.dk	BY-At9xz1BDW15uNGvjtRWyJbqwc3UE_KS7lsXlWSu4
TXT	_acme-challenge.critech.dk	C-N3ue2JvJG5j8uLU3DbODz67MIjayst-ccSq3PcoH4

🔗 TLSA / DANE

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

🔐 DNSSEC206ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2412905481
Primary NS (MNAME)	isla.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

85ms

A

94ms

MX

101ms

AAAA

84ms

TXT

291ms

CAA

98ms

HTTPS

92ms

TLSA

240ms

SOA

0ms

MTA-STS

133ms

DNSSEC

206ms

SRV

141ms

Total

3555ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 11:46:28	3555ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-07-15 13:16:38	1363ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-06-26 18:06:41	2916ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-06-25 14:30:28	956ms	2 NS 0 A 5 MX	🔓 Insecure	View
2026-06-16 22:55:51	503ms	2 NS 0 A 5 MX	🔓 Insecure	View