byggeadministration.dk

📜 Historical scan 2026-06-25 19:01:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byggeadministration.dk is a .dk domain served by 2 nameservers (ernest.ns.cloudflare.com, hattie.ns.cloudflare.com). It was registered on 9 August 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.67 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by byggeadministration-dk.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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ernest.ns.cloudflare.com	108.162.193.164 172.64.33.164 173.245.59.164 2606:4700:58::adf5:3ba4 2803:f800:50::6ca2:c1a4 2a06:98c1:50::ac40:21a4	ernest.ns.cloudflare.com ernest.ns.cloudflare.com ernest.ns.cloudflare.com ernest.ns.cloudflare.com ernest.ns.cloudflare.com ernest.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
hattie.ns.cloudflare.com	108.162.194.172 162.159.38.172 172.64.34.172 2606:4700:50::a29f:26ac 2803:f800:50::6ca2:c2ac 2a06:98c1:50::ac40:22ac	hattie.ns.cloudflare.com hattie.ns.cloudflare.com hattie.ns.cloudflare.com hattie.ns.cloudflare.com hattie.ns.cloudflare.com hattie.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.67	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.154.17	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	byggeadministration-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca09::2 2a01:111:f403:ca09::5 2a01:111:f403:ca09::7 52.101.68.0 52.101.73.12 52.101.73.16 52.101.73.8	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am0pr04cu00500.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 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:9a11	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:443	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.67,172.67.154.17 ech=AEX+DQBBDAAgACD2tpX44dE776O1qEe4pBYcf9gV2sYonx2xzeulGUbiNgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:9a11,2606:4700:3034::6815:443

📝 TXT Records#

3 records 153ms

TXT Record
MS=ms20350793
MS=ms86927897
v=spf1 mx a include:spf.curanet.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (byggeadministration.dk)
-all (hard fail)	v=spf1 mx a include:spf.curanet.dk include:spf.protection.outlook.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 23:04:55

www	104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335) (address records, no CNAME)
www vs bare domain	Same network byggeadministration.dk: 104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335) www.byggeadministration.dk: 104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 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	2407389982
Primary NS (MNAME)	ernest.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 23:21:57

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-08-09
Expires	2027-08-31 (318d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

43ms

34ms

AAAA

52ms

TXT

153ms

CAA

44ms

HTTPS

34ms

TLSA

220ms

SOA

0ms

MTA-STS

51ms

DNSSEC

112ms

SRV

75ms

Total

965ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 23:04:55	1354ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 21:14:44	1652ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 20:11:12	1303ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 14:29:17	2751ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 08:38:03	3281ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 00:16:57	1455ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-12 10:40:51	2242ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 19:01:46 shown	965ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 18:10:18	620ms	2 NS 2 A 1 MX	🔓 Insecure