concept.dk

📜 Historical scan 2026-09-26 15:35:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

concept.dk is a .dk domain served by 2 nameservers (chip.ns.cloudflare.com, stella.ns.cloudflare.com). It was registered on 20 August 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.9.245 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by alt3.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 64ms

Nameserver	IP addresses	PTR	ASN / ISP
chip.ns.cloudflare.com	108.162.193.84 172.64.33.84 173.245.59.84 2606:4700:58::adf5:3b54 2803:f800:50::6ca2:c154 2a06:98c1:50::ac40:2154	chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com chip.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
stella.ns.cloudflare.com	108.162.194.154 162.159.38.154 172.64.34.154 2606:4700:50::a29f:269a 2803:f800:50::6ca2:c29a 2a06:98c1:50::ac40:229a	stella.ns.cloudflare.com stella.ns.cloudflare.com stella.ns.cloudflare.com stella.ns.cloudflare.com stella.ns.cloudflare.com stella.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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.9.245	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.189.211	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
40	300s	aspmx.l.google.com	2a00:1450:4010:c06::1a 2a00:1450:4010:c06::1a 64.233.164.26	lj-in-f26.1e100.net lj-in-x1a.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
50	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:9f5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:bdd3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.9.245,172.67.189.211 ech=AEX+DQBBwwAgACDJRLwfHroIIIumGYwv7zqXmjAANRm4xp/27A20HNphHAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:9f5,2606:4700:3034::ac43:bdd3

📝 TXT Records#

4 records 215ms

TXT Record
00D20000000JNHE=1TBOj00000008wr
google-site-verification=-pw5KrBcLDQUlRJmgxQ7MeXoubaWUXrjaAHwmPEethE
MS=ms80014378
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (concept.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 2026-10-15 12:20:40

www	104.21.9.245 172.67.189.211 2606:4700:3033::6815:9f5 2606:4700:3034::ac43:bdd3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network concept.dk: 104.21.9.245 172.67.189.211 2606:4700:3033::6815:9f5 2606:4700:3034::ac43:bdd3 (AS13335) www.concept.dk: 104.21.9.245 172.67.189.211 2606:4700:3033::6815:9f5 2606:4700:3034::ac43:bdd3 (AS13335)
Wildcard	No

🔎 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#

73ms

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	2412383253
Primary NS (MNAME)	chip.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 16:00:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-08-20
Expires	2027-08-31 (318d)

📋 WHOIS#

⏱️ Lookup Timing#

64ms

46ms

45ms

AAAA

35ms

TXT

215ms

CAA

62ms

HTTPS

44ms

TLSA

76ms

SOA

0ms

MTA-STS

67ms

DNSSEC

73ms

SRV

70ms

Total

742ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 12:20:40	863ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-04 15:39:36	920ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 15:21:02	836ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-26 15:35:00 shown	742ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-18 01:36:18	1631ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-16 04:25:04	17521ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-08 01:45:37	1469ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 09:41:50	1006ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 10:35:59	2688ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 06:41:40	653ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 23:39:06	65535ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 22:25:43	2258ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 22:00:59	678ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 22:00:14	652ms	2 NS 2 A 5 MX	🔓 Insecure