theoryhero.dk

Records from scan: 2026-10-04 16:03:43 · 554ms total · last checked 2026-10-21 08:42 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

theoryhero.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 1 June 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.74.41.233 is hosted by Microsoft Corporation (AS8075) in Ireland. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 36ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.74.41.233	3600s	—	AS8075	Microsoft Corporation	13.64.0.0/11	🇮🇪 Ireland	Dublin

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 97ms

TXT Record
google-site-verification=dNyF2QWBrpx7AcWfyvqUje7_-5IvPJznwpfXIkK8mt8

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.theoryhero.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#

checked 2026-10-09 20:12:55

www	NXDOMAIN
www vs bare domain	www does not resolve theoryhero.dk: 13.74.41.233 (AS8075) www.theoryhero.dk: no address (all like this)
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

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

114ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026100300
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 2026-10-04 16:42:30

Field	Value
Registrar	Simply.com A/S
Registered	2026-06-01
Expires	2027-05-31 (221d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

37ms

38ms

AAAA

38ms

TXT

97ms

CAA

28ms

HTTPS

29ms

TLSA

95ms

SOA

27ms

MTA-STS

44ms

DNSSEC

114ms

SRV

40ms

Total

554ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 16:03:43 shown	554ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-25 06:52:05	603ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-25 06:45:31	1330ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-23 09:08:18	1011ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 14:55:51	2679ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-18 05:09:44	548ms	3 NS 1 A 0 MX	🔒 Secure