fenster.dk

📜 Historical scan 2026-09-29 13:34:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fenster.dk is a .dk domain served by 2 nameservers (emily.ns.cloudflare.com, garrett.ns.cloudflare.com). It was registered on 14 September 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.54.178 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
emily.ns.cloudflare.com	108.162.192.155 172.64.32.155 173.245.58.155 2606:4700:50::adf5:3a9b 2803:f800:50::6ca2:c09b 2a06:98c1:50::ac40:209b	emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
garrett.ns.cloudflare.com	108.162.195.195 162.159.44.195 172.64.35.195 2606:4700:58::a29f:2cc3 2803:f800:50::6ca2:c3c3 2a06:98c1:50::ac40:23c3	garrett.ns.cloudflare.com garrett.ns.cloudflare.com garrett.ns.cloudflare.com garrett.ns.cloudflare.com garrett.ns.cloudflare.com garrett.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
104.21.54.178	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.168.200	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 64.233.164.26	li-in-f27.1e100.net li-in-x1b.1e100.net lf-in-f26.1e100.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::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f27.1e100.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

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:a8c8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:36b2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 33ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.54.178,172.67.168.200 ech=AEX+DQBB4wAgACBxLzCVt58u0238+KpWIyBCwB3Sd6EJvNsgsS4+2o/FSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a8c8,2606:4700:3034::6815:36b2

📝 TXT Records#

4 records 168ms

TXT Record
google-site-verification=2UwUQGv99ceoKau8WlVbwdRu_Afb3i7O7EcXF6eOviM
heroku-domain-verification=dwmpnygjncrmxunwkap9kwk6ikatnt2thhpjuuvc
mailerlite-domain-verification=b99bd3b3fc38ebb3dc7d30ad2d77fb84ee341745
v=spf1 include:_spf.mlsend.com include:spf.mtasv.net include:_spf.google.com ~all

✉️ SPF#

Policy	Record (fenster.dk)
~all (soft fail)	v=spf1 include:_spf.mlsend.com include:spf.mtasv.net include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.fenster.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:re+olhhfdpxe8m@dmarc.postmarkapp.com; ruf=mailto:dmarc@fenster.dk; fo=1; sp=none; aspf=r;

📬 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 2026-10-10 04:09:44

www CNAME	www.fenster.dk.herokudns.com (all on herokudns.com) → 15.197.129.158 75.2.43.161 76.223.11.49 99.83.217.1 (AS16509)
www vs bare domain	Different networks fenster.dk: 104.21.54.178 172.67.168.200 2606:4700:3031::ac43:a8c8 2606:4700:3034::6815:36b2 (AS13335) www.fenster.dk: 15.197.129.158 75.2.43.161 76.223.11.49 99.83.217.1 (AS16509) (all like this)
Wildcard	No

✍️ 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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.fenster.dk	6qjijIYuANSSNqYrGdj3OKcwSIxqZi4L-NyH8kEsyb8
TXT	_acme-challenge.fenster.dk	WtCuR_bg-S8wrNXp-nKxyhW_e6ZXVMW7mZj0tojGL2I

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

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	2416083632
Primary NS (MNAME)	emily.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 20:08:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-09-14
Expires	2028-09-30 (712d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

35ms

42ms

AAAA

38ms

TXT

168ms

CAA

27ms

HTTPS

33ms

TLSA

248ms

SOA

0ms

MTA-STS

55ms

DNSSEC

112ms

SRV

55ms

Total

1067ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 04:09:44	540ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-03 20:29:35	2529ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-02 20:16:21	979ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 20:11:41	634ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 13:40:52	1681ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-29 13:34:45 shown	1067ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 13:26:13	1066ms	2 NS 0 A 5 MX	🔓 Insecure
2026-09-20 00:40:00	2593ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 11:13:04	1967ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-26 04:03:54	4216ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-23 14:34:21	947ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 18:58:33	1167ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:14:52	3437ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:14:34	809ms	2 NS 2 A 5 MX	🔓 Insecure