concepto.dk

📜 Historical scan 2026-08-30 16:58:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

concepto.dk is a .dk domain served by 2 nameservers (colin.ns.cloudflare.com, gina.ns.cloudflare.com). It was registered on 17 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.86.51 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by concepto-dk.mail.protection.outlook.com. 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 26ms

Nameserver	IP addresses	PTR	ASN / ISP
colin.ns.cloudflare.com	108.162.195.75 162.159.44.75 172.64.35.75 2606:4700:58::a29f:2c4b 2803:f800:50::6ca2:c34b 2a06:98c1:50::ac40:234b	colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gina.ns.cloudflare.com	108.162.192.117 172.64.32.117 173.245.58.117 2606:4700:50::adf5:3a75 2803:f800:50::6ca2:c075 2a06:98c1:50::ac40:2075	gina.ns.cloudflare.com gina.ns.cloudflare.com gina.ns.cloudflare.com gina.ns.cloudflare.com gina.ns.cloudflare.com gina.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.86.51	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.215.22	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 21ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	concepto-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::3 52.101.68.36 52.101.68.39 52.101.73.16 52.101.73.28	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

2 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:d716	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5633	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 50ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.86.51,172.67.215.22 ech=AEX+DQBBgQAgACB92BwhmEuJqoQuhfPEk0bOxiFHjsBjkbC7eU2Nq31uJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d716,2606:4700:3036::6815:5633

🔌 SRV Records#

1 records 66ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 149ms

TXT Record
MS=ms65450834
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (concepto.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.concepto.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:de96b455224d484697f27f4313c01ce6@dmarc-reports.cloudflare.net

📬 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 2026-10-12 18:56:07

www	NXDOMAIN
www vs bare domain	www does not resolve concepto.dk: 104.21.86.51 172.67.215.22 2606:4700:3032::ac43:d716 2606:4700:3036::6815:5633 (AS13335) www.concepto.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-concepto-dk._domainkey.conceptodk.onmicrosoft.com	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#

103ms

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	2413526824
Primary NS (MNAME)	colin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 16:05:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-03-17
Expires	2033-03-16 (2340d)

📋 WHOIS#

⏱️ Lookup Timing#

26ms

32ms

21ms

AAAA

33ms

TXT

149ms

CAA

28ms

HTTPS

50ms

TLSA

795ms

SOA

0ms

MTA-STS

43ms

DNSSEC

103ms

SRV

66ms

Total

1407ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 02:14:26	1402ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 16:58:48 shown	1407ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 07:12:26	936ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-25 13:03:53	9991ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 23:25:27	65535ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 22:20:15	1970ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 22:02:49	876ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 22:00:31	3606ms	2 NS 2 A 1 MX	🔓 Insecure