theoryhero.dk

📜 Historical scan 2026-06-20 14:55:51 · ← Latest scan

⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 126ms

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 120ms

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 368ms

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#

latest probe, not this scan · 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#

302ms

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

🏷️ SOA#

113ms

Field	Value
Serial	2026061300
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 (220d)

📋 WHOIS#

⏱️ Lookup Timing#

126ms

120ms

128ms

AAAA

124ms

TXT

368ms

CAA

114ms

HTTPS

111ms

TLSA

161ms

SOA

113ms

MTA-STS

100ms

DNSSEC

302ms

SRV

2106ms

Total

2679ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 16:03:43	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 shown	2679ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-18 05:09:44	548ms	3 NS 1 A 0 MX	🔒 Secure