trainyourbrain.dk

📜 Historical scan 2026-06-23 19:44:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

trainyourbrain.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.178 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by trainyourbrain.dk. 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#

4 records 41ms

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
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.178	3600s	web6.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	trainyourbrain.dk	193.200.90.178	web6.e-studio.dk	AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.200.90.178
🔶 Autoconfig	193.200.90.178

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 221ms

TXT Record
v=DMARC1; p=none;
v=spf1 +mx +a +ip4:193.200.90.178 +include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (trainyourbrain.dk)
~all (soft fail)	v=spf1 +mx +a +ip4:193.200.90.178 +include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.trainyourbrain.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@trainyourbrain.dk; ruf=mailto:dmarc@trainyourbrain.dk; sp=none; aspf=r;

📬 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 2026-10-12 21:34:18

www CNAME	trainyourbrain.dk (all on trainyourbrain.dk) → 193.200.90.178 (AS62121)
www vs bare domain	Same network trainyourbrain.dk: 193.200.90.178 (AS62121) www.trainyourbrain.dk: 193.200.90.178 (AS62121)
Wildcard	Yes: any name under the zone resolves
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

57ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2025110600
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

41ms

79ms

41ms

AAAA

41ms

TXT

221ms

CAA

30ms

HTTPS

29ms

TLSA

83ms

SOA

28ms

MTA-STS

40ms

DNSSEC

57ms

SRV

81ms

Total

672ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 21:34:18	522ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 08:03:49	591ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-23 19:44:30 shown	672ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 03:38:14	734ms	4 NS 1 A 1 MX	🔒 Secure