build.dk

📜 Historical scan 2026-06-16 17:43:35 · ← 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
aragorn.ns.cloudflare.com	—	—	—
julissa.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 53ms

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

📧 MX Records#

1 records 32ms

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

🔷 AAAA Records (IPv6)#

2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:3163	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:a19c	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.49.99,172.67.161.156 ech=AEX+DQBB6gAgACBAk7biNGguDhfElDNDlBhA4bndbZdx+H8iOS6FUr6nJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3163,2606:4700:3031::ac43:a19c

📝 TXT Records#

4 records 121ms

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#

87ms

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

🏷️ SOA#

31ms

Field	Value
Serial	2406649146
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#

32ms

53ms

32ms

AAAA

51ms

TXT

121ms

CAA

47ms

HTTPS

32ms

TLSA

86ms

SOA

31ms

MTA-STS

32ms

DNSSEC

87ms

SRV

0ms

Total

537ms

🕐 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	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 shown	537ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:40:10	633ms	2 NS 2 A 1 MX	🔓 Insecure