ersboll.dk

📜 Historical scan 2026-08-30 23:14:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ersboll.dk is a .dk domain served by 2 nameservers (angelina.ns.cloudflare.com, nicolas.ns.cloudflare.com). It was registered on 30 December 2023 (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 DNSSEC-signed and validates, 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 150ms

Nameserver	IP addresses	PTR	ASN / ISP
angelina.ns.cloudflare.com	108.162.194.232 162.159.38.232 172.64.34.232 2606:4700:50::a29f:26e8 2803:f800:50::6ca2:c2e8 2a06:98c1:50::ac40:22e8	angelina.ns.cloudflare.com angelina.ns.cloudflare.com angelina.ns.cloudflare.com angelina.ns.cloudflare.com angelina.ns.cloudflare.com angelina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nicolas.ns.cloudflare.com	108.162.195.84 162.159.44.84 172.64.35.84 2606:4700:58::a29f:2c54 2803:f800:50::6ca2:c354 2a06:98c1:50::ac40:2354	nicolas.ns.cloudflare.com nicolas.ns.cloudflare.com nicolas.ns.cloudflare.com nicolas.ns.cloudflare.com nicolas.ns.cloudflare.com nicolas.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 117ms

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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 495ms

TXT Record
protonmail-verification=055c68464dfdfe09156d442565eb2b8a0ec1ae55
v=spf1 include:_spf.protonmail.ch mx ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.ersboll.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:ff42fd491d3e4e2685a1e1b284bac1bd@dmarc-reports.cloudflare.net;

📬 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 2026-10-11 14:04:25

www	Exists, no address
www vs bare domain	Neither resolves ersboll.dk: no address www.ersboll.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

🔗 TLSA / DANE#

4 records 135ms

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…

🔐 DNSSEC#

334ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413590696
Primary NS (MNAME)	angelina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-03 17:49:26

Field	Value
Registrar	Domænehajen ApS
Registered	2023-12-30
Expires	2035-12-29 (3360d)

📋 WHOIS#

⏱️ Lookup Timing#

150ms

135ms

117ms

AAAA

155ms

TXT

495ms

CAA

100ms

HTTPS

100ms

TLSA

135ms

SOA

0ms

MTA-STS

180ms

DNSSEC

334ms

SRV

198ms

Total

2372ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 17:27:55	828ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-29 17:06:59	1257ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-16 14:22:01	1197ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-12 07:05:38	1242ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-30 23:14:11 shown	2372ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-18 07:00:05	4450ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-01 20:06:10	2383ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-23 16:32:11	9818ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-30 21:00:38	964ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-19 05:11:32	788ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-17 08:16:01	507ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-17 08:15:16	3089ms	2 NS 0 A 2 MX	🔒 Secure