cs-construction.dk

📜 Historical scan 2026-08-21 21:49:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cs-construction.dk is a .dk domain served by 2 nameservers (carlos.ns.cloudflare.com, kimora.ns.cloudflare.com). It was registered on 14 October 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.77.134 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by csconstruction-dk0e.mail.protection.outlook.com. 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 310ms

Nameserver	IP addresses	PTR	ASN / ISP
carlos.ns.cloudflare.com	108.162.195.112 162.159.44.112 172.64.35.112 2606:4700:58::a29f:2c70 2803:f800:50::6ca2:c370 2a06:98c1:50::ac40:2370	carlos.ns.cloudflare.com carlos.ns.cloudflare.com carlos.ns.cloudflare.com carlos.ns.cloudflare.com carlos.ns.cloudflare.com carlos.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kimora.ns.cloudflare.com	108.162.194.243 162.159.38.243 172.64.34.243 2606:4700:50::a29f:26f3 2803:f800:50::6ca2:c2f3 2a06:98c1:50::ac40:22f3	kimora.ns.cloudflare.com kimora.ns.cloudflare.com kimora.ns.cloudflare.com kimora.ns.cloudflare.com kimora.ns.cloudflare.com kimora.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 277ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.77.134	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.208.143	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 213ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	csconstruction-dk0e.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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 → 40.104.116.40
🔶 Autoconfig	104.21.77.134

🔷 AAAA Records (IPv6)#

2 records 342ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4d86	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:d08f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 352ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.77.134,172.67.208.143 ech=AEX+DQBB5wAgACA2Fl4vDdpI+2uZw9eWy5B3zj7Niexo+IIU0glZFyQDegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4d86,2606:4700:3034::ac43:d08f

📝 TXT Records#

3 records 1217ms

TXT Record
MS=ms19833011
MS=ms78878038
v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk include:web.shared.mysmtp.com ~all

✉️ SPF#

Policy	Record (cs-construction.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk include:web.shared.mysmtp.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 2026-10-10 09:27:26

www	104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335) (address records, no CNAME)
www vs bare domain	Same network cs-construction.dk: 104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335) www.cs-construction.dk: 104.21.77.134 172.67.208.143 2606:4700:3031::6815:4d86 2606:4700:3034::ac43:d08f (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-csconstruction-dk0e._domainkey.csconstructiondk.onmicrosoft.com	RSA · ~1024 bit below 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: 8/10 · policy: ~all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

621ms

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	2412804169
Primary NS (MNAME)	carlos.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 18:21:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-10-14
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

310ms

277ms

213ms

AAAA

342ms

TXT

1217ms

CAA

328ms

HTTPS

352ms

TLSA

716ms

SOA

0ms

MTA-STS

494ms

DNSSEC

621ms

SRV

492ms

Total

9508ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-08 15:43:42	2114ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 21:49:57 shown	9508ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-23 22:10:52	1559ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 23:12:57	65535ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 23:06:03	728ms	2 NS 2 A 1 MX	🔓 Insecure