unit37.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
aleena.ns.cloudflare.com	108.162.194.81 162.159.38.81 172.64.34.81 2606:4700:50::a29f:2651 2803:f800:50::6ca2:c251 2a06:98c1:50::ac40:2251	aleena.ns.cloudflare.com aleena.ns.cloudflare.com aleena.ns.cloudflare.com aleena.ns.cloudflare.com aleena.ns.cloudflare.com aleena.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kenneth.ns.cloudflare.com	108.162.195.41 162.159.44.41 172.64.35.41 2606:4700:58::a29f:2c29 2803:f800:50::6ca2:c329 2a06:98c1:50::ac40:2329	kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 48ms

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

📧 MX Records2 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	—	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.1.26
🔶 Autoconfig	188.114.97.1

🔷 AAAA Records (IPv6)2 records 71ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:97e2	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:11a	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 69ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.1.26,172.67.151.226 ech=AEX+DQBBXQAgACCKtZprehaOOcZuI8UfRINUiU1H1hp2/GZSIeULHEiwSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:97e2,2606:4700:3035::6815:11a

📝 TXT Records2 records 220ms

TXT Record
protonmail-verification=0241a571a199f46c30989ca592e7b12f66e6f17f
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF

Policy	Record (unit37.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC

Policy	Record (_dmarc.unit37.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 / DANE4 records 93ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC162ms

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

🏷️ SOA69ms

Field	Value
Serial	2406677733
Primary NS (MNAME)	aleena.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

50ms

A

48ms

MX

71ms

AAAA

71ms

TXT

220ms

CAA

49ms

HTTPS

69ms

TLSA

93ms

SOA

69ms

MTA-STS

2037ms

DNSSEC

162ms

SRV

2063ms

Total

3016ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 19:14:11	1992ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-28 09:18:15	10414ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-26 10:39:19	10733ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-15 16:15:24	3415ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-05 20:34:37	2021ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-20 23:52:31	10051ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-27 02:39:55	786ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-20 04:21:57	780ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-20 02:17:20	4442ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-18 00:37:23	3016ms	2 NS 2 A 2 MX	🔓 Insecure	View