builders.dk

📜 Historical scan 2026-06-20 23:49:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

builders.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 5 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 146.190.237.50 is hosted by DigitalOcean, LLC (AS14061) in The Netherlands. Mail is handled by builders-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 68ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
146.190.237.50	10800s	—	AS14061	DigitalOcean, LLC	146.190.192.0/18	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	builders-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::b 2a01:111:f403:ca04::c 2a01:111:f403:ca09::3 52.101.68.27 52.101.68.3 52.101.73.2 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 52.98.252.120

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 167ms

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

📝 TXT Records#

1 records 428ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 -all

✉️ SPF#

Policy	Record (builders.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:193.8.36.0/22 -all

📨 DMARC#

Policy	Record (_dmarc.builders.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s;

📬 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 2026-10-06 11:24:20

www	Address record (no CNAME)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-builders-dk._domainkey.godk28894643.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-builders-dk._domainkey.godk28894643.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#

272ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

66ms

Field	Value
Serial	2025111701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-11 12:43:18

Field	Value
Registrar	CURANET A/S
Registered	2006-02-05
Expires	2028-02-29 (498d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

68ms

83ms

64ms

AAAA

96ms

TXT

428ms

CAA

70ms

HTTPS

75ms

TLSA

2066ms

SOA

66ms

MTA-STS

130ms

DNSSEC

272ms

SRV

167ms

Total

3084ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 08:38:16	880ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 08:15:00	680ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 01:48:11	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 23:49:45 shown	3084ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 22:42:53	1011ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 17:43:22	776ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 17:40:55	712ms	2 NS 1 A 1 MX	🔒 Secure