sustainablebuild.dk DNS records

🖥️ Nameservers2 records 112ms

Nameserver	IP addresses	PTR	ASN / ISP
brit.ns.cloudflare.com	108.162.192.78 172.64.32.78 173.245.58.78 2606:4700:50::adf5:3a4e 2803:f800:50::6ca2:c04e 2a06:98c1:50::ac40:204e	brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com brit.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gerald.ns.cloudflare.com	108.162.193.168 172.64.33.168 173.245.59.168 2606:4700:58::adf5:3ba8 2803:f800:50::6ca2:c1a8 2a06:98c1:50::ac40:21a8	gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 124ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.168	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.146.55	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 118ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5fa8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:9237	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 114ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.168,172.67.146.55 ech=AEX+DQBBwgAgACBb87vHaYHa7Ku6OgDA7hQ44LgqRWwMh2tFtKnYQhngMQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5fa8,2606:4700:3032::ac43:9237

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC228ms

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

🏷️ SOA0ms

Field	Value
Serial	2408565442
Primary NS (MNAME)	brit.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

112ms

A

124ms

MX

87ms

AAAA

118ms

TXT

297ms

CAA

123ms

HTTPS

114ms

TLSA

120ms

SOA

0ms

MTA-STS

144ms

DNSSEC

228ms

SRV

160ms

Total

1481ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-04 17:02:05	1481ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-29 07:16:16	954ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 23:05:55	2010ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-21 02:33:50	2524ms	4 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-20 07:27:29	1378ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 20:22:38	4522ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 09:13:56	853ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-18 18:48:32	915ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 23:09:06	877ms	4 NS 1 A 1 MX	🔓 Insecure	View