byggeadministration.dk

📜 Historical scan 2026-10-08 21:14:44 · ← 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 34ms

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 38ms

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 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	byggeadministration-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca21::10 2a01:111:f403:ca21::a 2a01:111:f403:ca48::12 52.101.103.137 52.101.103.143 52.101.185.24 52.101.68.27	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:443	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:9a11	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=104.21.4.67,172.67.154.17 ech=AEX+DQBBtAAgACDK155bAXGLBzsayA3lZo3HC5WSmvKberQQtjQBuaGTWwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:443,2606:4700:3033::ac43:9a11

📝 TXT Records#

3 records 168ms

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#

121ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

33ms

Field	Value
Serial	2416929826
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#

34ms

38ms

35ms

AAAA

46ms

TXT

168ms

CAA

37ms

HTTPS

44ms

TLSA

908ms

SOA

33ms

MTA-STS

57ms

DNSSEC

121ms

SRV

64ms

Total

1652ms

🕐 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 shown	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	965ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 18:10:18	620ms	2 NS 2 A 1 MX	🔓 Insecure