sentinel-media.dk DNS records

🖥️ Nameservers2 records 102ms

Nameserver	IP addresses	PTR	ASN / ISP
april.ns.cloudflare.com	108.162.192.66 172.64.32.66 173.245.58.66 2606:4700:50::adf5:3a42 2803:f800:50::6ca2:c042 2a06:98c1:50::ac40:2042	april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
vin.ns.cloudflare.com	108.162.193.245 172.64.33.245 173.245.59.245 2606:4700:58::adf5:3bf5 2803:f800:50::6ca2:c1f5 2a06:98c1:50::ac40:21f5	vin.ns.cloudflare.com vin.ns.cloudflare.com vin.ns.cloudflare.com vin.ns.cloudflare.com vin.ns.cloudflare.com vin.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
104.21.69.133	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.208.185	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 127ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	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	300s	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

🔷 AAAA Records (IPv6)2 records 113ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:d0b9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:4585	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 107ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.69.133,172.67.208.185 ech=AEX+DQBBsAAgACCvkBCkxv/BhCnzYFVOyiA9UwK0cicbl8OXepwBzbeXSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:d0b9,2606:4700:3036::6815:4585

📝 TXT Records2 records 409ms

TXT Record
protonmail-verification=371c2f3ba7ea9d393a51a0ed855c93ee2716d48a
v=spf1 include:_spf.protonmail.ch mx ~all

✉️ SPF

Policy	Record (sentinel-media.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch mx ~all

📨 DMARC

Policy	Record (_dmarc.sentinel-media.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 222ms

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	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC272ms

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

🏷️ SOA0ms

Field	Value
Serial	2413370694
Primary NS (MNAME)	april.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

102ms

A

94ms

MX

127ms

AAAA

113ms

TXT

409ms

CAA

110ms

HTTPS

107ms

TLSA

222ms

SOA

0ms

MTA-STS

168ms

DNSSEC

272ms

SRV

211ms

Total

1998ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 18:58:09	1998ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-26 16:37:33	877ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-25 19:19:56	718ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-15 13:49:19	1421ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-07 21:23:36	1436ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-19 03:04:08	10248ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-12 18:19:35	1445ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-28 12:14:37	969ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-18 06:43:09	1053ms	2 NS 2 A 2 MX	🔓 Insecure	View