prestabox.dk DNS records

🖥️ Nameservers2 records 130ms

Nameserver	IP addresses	PTR	ASN / ISP
albert.ns.cloudflare.com	108.162.193.58 172.64.33.58 173.245.59.58 2606:4700:58::adf5:3b3a 2803:f800:50::6ca2:c13a 2a06:98c1:50::ac40:213a	albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
emily.ns.cloudflare.com	108.162.192.155 172.64.32.155 173.245.58.155 2606:4700:50::adf5:3a9b 2803:f800:50::6ca2:c09b 2a06:98c1:50::ac40:209b	emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com emily.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.12.241	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.18.13.241	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records1 records 129ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.18.13.241
🔶 Autoconfig	104.18.13.241

🔷 AAAA Records (IPv6)2 records 108ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700::6812:cf1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700::6812:df1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records1 records 128ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.12.241,104.18.13.241 ipv6hint=2606:4700::6812:cf1,2606:4700::6812:df1

📝 TXT Records1 records 244ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (prestabox.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

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

🔗 TLSA / DANE

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

🔐 DNSSEC154ms

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	2410991592
Primary NS (MNAME)	albert.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

130ms

A

94ms

MX

129ms

AAAA

108ms

TXT

244ms

CAA

106ms

HTTPS

128ms

TLSA

329ms

SOA

0ms

MTA-STS

132ms

DNSSEC

154ms

SRV

141ms

Total

1358ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-06 09:30:16	1358ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-26 20:36:06	876ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 05:26:00	25082ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 23:05:44	935ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-27 22:08:05	2049ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 14:20:00	852ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 07:07:19	673ms	2 NS 2 A 0 MX	🔓 Insecure	View