nuldag.dk

📜 Historical scan 2026-06-17 19:10:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nuldag.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 8 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 161.35.31.134 is hosted by DigitalOcean, LLC (AS14061) in Germany. 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#

3 records 21ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 20ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
161.35.31.134	—	—	AS14061	DigitalOcean, LLC	161.35.0.0/16	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

2 records 20ms

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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 206ms

TXT Record
protonmail-verification=0b6c546476146cae388da9ac35de1a6ecec0fa47
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.nuldag.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#

3 records 18ms

Flags	Tag	Value
0	iodef	mailto:kontakt@nuldag.dk
0	issue	letsencrypt.org
0	issuewild	;

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 12:55:37

www CNAME	nuldag.dk (all on nuldag.dk) → 161.35.31.134 (AS14061)
www vs bare domain	Same network nuldag.dk: 161.35.31.134 (AS14061) www.nuldag.dk: 161.35.31.134 (AS14061)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 180ms

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#

82ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

19ms

Field	Value
Serial	2026060402
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 13:14:18

Field	Value
Registrar	Simply.com A/S
Registered	2026-04-08
Expires	2027-04-07 (169d)

📋 WHOIS#

⏱️ Lookup Timing#

21ms

20ms

AAAA

20ms

TXT

206ms

CAA

18ms

HTTPS

20ms

TLSA

180ms

SOA

19ms

MTA-STS

214ms

DNSSEC

82ms

SRV

143ms

Total

904ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 12:55:37	725ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-04 01:46:36	1013ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-23 21:20:51	805ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-17 19:10:46 shown	904ms	3 NS 1 A 2 MX	🔒 Secure