build.dk

📜 Historical scan 2026-09-09 05:33:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

build.dk is a .dk domain served by 2 nameservers (aragorn.ns.cloudflare.com, julissa.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.49.99 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailserver.purelymail.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 44ms

Nameserver	IP addresses	PTR	ASN / ISP
aragorn.ns.cloudflare.com	108.162.193.67 172.64.33.67 173.245.59.67 2606:4700:58::adf5:3b43 2803:f800:50::6ca2:c143 2a06:98c1:50::ac40:2143	aragorn.ns.cloudflare.com aragorn.ns.cloudflare.com aragorn.ns.cloudflare.com aragorn.ns.cloudflare.com aragorn.ns.cloudflare.com aragorn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
julissa.ns.cloudflare.com	108.162.194.105 162.159.38.105 172.64.34.105 2606:4700:50::a29f:2669 2803:f800:50::6ca2:c269 2a06:98c1:50::ac40:2269	julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.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 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.49.99	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.161.156	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
50	300s	mailserver.purelymail.com	18.204.123.63	ec2-18-204-123-63.compute-1.amazonaws.com	AS14618 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.161.156
🔶 Autoconfig	104.21.49.99

🔷 AAAA Records (IPv6)#

2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:3163	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:a19c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.49.99,172.67.161.156 ech=AEX+DQBBLQAgACBB603UCHILAf3l/8Rf+JcY81fpXsHZNw082eNgFhBSSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3163,2606:4700:3033::ac43:a19c

📝 TXT Records#

4 records 214ms

TXT Record
kupm6jj4rvgrmoftdqigpbv7ce
purelymail_ownership_proof=2c403dd8428be823a864ece9734a81672983afb9747b50220655ffc88220888d9b306e128c318f9fcd9a073557672eb54079d58c3f81cd9abdd5a3fb5242f475
v=DMARC1; p=none;
v=spf1 include:_spf.purelymail.com ~all

✉️ SPF#

Policy	Record (build.dk)
~all (soft fail)	v=spf1 include:_spf.purelymail.com ~all

📨 DMARC#

Policy	Record (_dmarc.build.dk)
p=reject	v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.com

📬 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 2026-10-08 07:39:13

www	104.21.49.99 172.67.161.156 2606:4700:3031::6815:3163 2606:4700:3033::ac43:a19c (AS13335) (address records, no CNAME)
www vs bare domain	Same network build.dk: 104.21.49.99 172.67.161.156 2606:4700:3031::6815:3163 2606:4700:3033::ac43:a19c (AS13335) www.build.dk: 104.21.49.99 172.67.161.156 2606:4700:3031::6815:3163 2606:4700:3033::ac43:a19c (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 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#

9084ms

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	2414316373
Primary NS (MNAME)	aragorn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

44ms

36ms

43ms

AAAA

34ms

TXT

214ms

CAA

51ms

HTTPS

56ms

TLSA

93ms

SOA

0ms

MTA-STS

63ms

DNSSEC

9084ms

SRV

77ms

Total

10061ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 07:39:13	937ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 07:30:32	2540ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 05:33:28 shown	10061ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-05 18:07:07	721ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-01 13:41:20	889ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 00:44:06	9727ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 23:04:10	6087ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-10 21:47:45	2790ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 07:27:44	1139ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:43:35	537ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:40:10	633ms	2 NS 2 A 1 MX	🔓 Insecure