sebsa.dk

📜 Historical scan 2026-10-17 22:17:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sebsa.dk is a .dk domain served by 2 nameservers (anastasia.ns.cloudflare.com, ezra.ns.cloudflare.com). It was registered on 27 June 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is of unknown DNSSEC status, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 76ms

Nameserver	IP addresses	PTR	ASN / ISP
anastasia.ns.cloudflare.com	108.162.194.227 162.159.38.227 172.64.34.227 2606:4700:50::a29f:26e3 2803:f800:50::6ca2:c2e3 2a06:98c1:50::ac40:22e3	anastasia.ns.cloudflare.com anastasia.ns.cloudflare.com anastasia.ns.cloudflare.com anastasia.ns.cloudflare.com anastasia.ns.cloudflare.com anastasia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ezra.ns.cloudflare.com	108.162.195.15 162.159.44.15 172.64.35.15 2606:4700:58::a29f:2c0f 2803:f800:50::6ca2:c30f 2a06:98c1:50::ac40:230f	ezra.ns.cloudflare.com ezra.ns.cloudflare.com ezra.ns.cloudflare.com ezra.ns.cloudflare.com ezra.ns.cloudflare.com ezra.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	30s	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	30s	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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 201ms

TXT Record
protonmail-verification=b18f347c8aadd632e9824caaa30bab6f0bffc14d
v=spf1 include:_spf.protonmail.ch mx ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.sebsa.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 23:28:05

www	Exists, no address
www vs bare domain	Neither resolves sebsa.dk: no address www.sebsa.dk: no address
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.sebsa.dk	QuJ8KqEfxtlyiBANjLS8Y3hbKyHvO6ATkOMqT2Tjqls
TXT	_acme-challenge.sebsa.dk	XtMpkqeCaALv1-mCw_-ah4gWncAh8AJH0dZdLGBhHcc

🔗 TLSA / DANE#

4 records 58ms

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…

🔐 DNSSEC#

241ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'sebsa.dk/DNSKEY/IN': 172.28.0.2#53

🏷️ SOA#

19ms

Field	Value
Serial	2417462171
Primary NS (MNAME)	anastasia.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 21:22:26

Field	Value
Registrar	DANDOMAIN A/S
Registered	2020-06-27
Expires	2027-06-30 (245d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

76ms

119ms

81ms

AAAA

86ms

TXT

201ms

CAA

214ms

HTTPS

207ms

TLSA

58ms

SOA

19ms

MTA-STS

106ms

DNSSEC

241ms

SRV

131ms

Total

1531ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 23:28:05	2492ms	2 NS 0 A 2 MX	🔓 Insecure
2026-10-17 22:17:33 shown	1531ms	2 NS 0 A 2 MX	❓ Unknown
2026-10-16 20:49:32	1310ms	2 NS 0 A 2 MX	🔓 Insecure
2026-10-14 15:26:47	1870ms	2 NS 0 A 2 MX	🔓 Insecure
2026-10-08 03:57:51	501ms	2 NS 0 A 2 MX	🔓 Insecure
2026-09-25 16:02:48	729ms	2 NS 0 A 2 MX	🔓 Insecure
2026-09-23 19:55:16	797ms	2 NS 0 A 2 MX	🔓 Insecure
2026-09-12 02:35:41	9993ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-28 01:07:10	621ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-20 18:03:37	7727ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-18 16:57:07	1496ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-17 01:06:34	3903ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-15 20:39:56	4667ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-14 04:14:16	9232ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-11 00:31:16	1278ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-06 14:32:41	1487ms	2 NS 0 A 2 MX	🔓 Insecure
2026-07-16 03:09:06	1156ms	2 NS 0 A 2 MX	🔓 Insecure
2026-06-20 17:08:59	524ms	2 NS 0 A 2 MX	🔓 Insecure
2026-06-17 16:36:18	1893ms	2 NS 0 A 2 MX	🔓 Insecure