sprent.dk DNS records

🖥️ Nameservers2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records

🌍

No A records found

📧 MX Records3 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mxext1.mailbox.org	2001:67c:2050:104:0:1:25:1 80.241.60.212	mx1.mailbox.org mx1.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH
10	43200s	mxext2.mailbox.org	2001:67c:2050:104:0:2:25:1 80.241.60.215	mx2.mailbox.org mx2.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH
20	43200s	mxext3.mailbox.org	2001:67c:2050:104:0:3:25:1 80.241.60.216	mx3.mailbox.org mx3.mailbox.org	AS199118 Heinlein-Support GmbH AS199118 Heinlein-Support GmbH

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 148ms

TXT Record
v=spf1 include:mailbox.org

✉️ SPF

Policy	Record (sprent.dk)
no all — incomplete SPF	v=spf1 include:mailbox.org

📨 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 / DANE9 records 77ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…

🔐 DNSSEC83ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026081201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

37ms

MX

33ms

AAAA

54ms

TXT

148ms

CAA

40ms

HTTPS

34ms

TLSA

77ms

SOA

0ms

MTA-STS

52ms

DNSSEC

83ms

SRV

51ms

Total

723ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:07:17	723ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-08-13 05:34:41	5800ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-07-19 02:31:04	2679ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-07-14 10:52:47	1554ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-06-27 06:14:00	2198ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-06-25 23:05:13	2514ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-06-22 08:18:31	1073ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 23:31:31	1160ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 16:02:34	613ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-06-18 04:04:31	4462ms	2 NS 0 A 3 MX	🔒 Secure	View
2026-06-18 04:04:14	979ms	2 NS 0 A 3 MX	🔒 Secure	View