crewstack.dk

📜 Historical scan 2026-08-09 18:23:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

crewstack.dk is a .dk domain served by 2 nameservers (dina.ns.cloudflare.com, paul.ns.cloudflare.com). It was registered on 17 June 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.186 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, 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 45ms

Nameserver	IP addresses	PTR	ASN / ISP
dina.ns.cloudflare.com	108.162.192.107 172.64.32.107 173.245.58.107 2606:4700:50::adf5:3a6b 2803:f800:50::6ca2:c06b 2a06:98c1:50::ac40:206b	dina.ns.cloudflare.com dina.ns.cloudflare.com dina.ns.cloudflare.com dina.ns.cloudflare.com dina.ns.cloudflare.com dina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
paul.ns.cloudflare.com	108.162.193.135 172.64.33.135 173.245.59.135 2606:4700:58::adf5:3b87 2803:f800:50::6ca2:c187 2a06:98c1:50::ac40:2187	paul.ns.cloudflare.com paul.ns.cloudflare.com paul.ns.cloudflare.com paul.ns.cloudflare.com paul.ns.cloudflare.com paul.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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.52.186	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.202.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.1.26 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b	lb-in-f26.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.52.186
🔶 Autoconfig	172.67.202.218

🔷 AAAA Records (IPv6)#

2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:34ba	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:cada	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 54ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.52.186,172.67.202.218 ech=AEX+DQBBXAAgACBfsCYc2v1KH8rbYd0hR5bWHhwKBJSEepxccs7qi1FiFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:34ba,2606:4700:3033::ac43:cada

📝 TXT Records#

2 records 208ms

TXT Record
google-site-verification=kf9BixdIMH1lvc8fn8GR55V9OwWCvOl59nWOsEZMXhg
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (crewstack.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 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 2026-10-09 07:44:37

www	104.21.52.186 172.67.202.218 2606:4700:3033::6815:34ba 2606:4700:3033::ac43:cada (AS13335) (address records, no CNAME)
www vs bare domain	Same network crewstack.dk: 104.21.52.186 172.67.202.218 2606:4700:3033::6815:34ba 2606:4700:3033::ac43:cada (AS13335) www.crewstack.dk: 104.21.52.186 172.67.202.218 2606:4700:3033::6815:34ba 2606:4700:3033::ac43:cada (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 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#

100ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411507814
Primary NS (MNAME)	dina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 08:00:24

Field	Value
Registrar	Simply.com A/S
Registered	2025-06-17
Expires	2027-06-16 (238d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

48ms

AAAA

45ms

TXT

208ms

CAA

49ms

HTTPS

54ms

TLSA

172ms

SOA

0ms

MTA-STS

712ms

DNSSEC

100ms

SRV

73ms

Total

2146ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 07:44:37	3129ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-08 07:42:32	949ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-03 16:15:02	1761ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 16:04:06	1094ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-29 15:57:42	569ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-29 15:23:38	2758ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 05:36:00	2923ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-09 18:23:41 shown	2146ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-06 11:23:32	1533ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 09:01:01	1131ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 06:54:38	3784ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 00:09:13	934ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 22:56:14	660ms	2 NS 2 A 5 MX	🔓 Insecure