rubytraining.dk DNS records

🖥️ Nameservers5 records 71ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 205ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
128.76.131.190	3600s	128-76-131-190-static.dk.customer.tdc.net	AS3292	TDC Holding A/S	128.76.128.0/17	🇩🇰 Denmark	Vejle

📧 MX Records3 records 235ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.gigahost.dk	46.183.139.11	mx1.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx2.gigahost.dk	46.183.139.12	mx2.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx3.gigahost.dk	46.183.139.13	mx3.gigahost.dk	AS47292 Sentia Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	rubytraining.dk → 128.76.131.190
🔶 Autoconfig	rubytraining.dk → 128.76.131.190

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 316ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records2 records 360ms

TXT Record
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk -all

✉️ SPF

Policy	Record (rubytraining.dk)
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC

Policy	Record (_dmarc.rubytraining.dk)
p=reject	v=DMARC1; p=reject;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.rubytraining.dk	rubytraining.dk

🔗 TLSA / DANE

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

🔐 DNSSEC277ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@rubytraining.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

71ms

A

205ms

MX

235ms

AAAA

236ms

TXT

360ms

CAA

71ms

HTTPS

258ms

TLSA

165ms

SOA

0ms

MTA-STS

266ms

DNSSEC

277ms

SRV

316ms

Total

970ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 20:32:04	970ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 09:37:37	1121ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 02:08:54	936ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 10:31:41	5891ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 16:15:04	3311ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-06 10:10:56	1845ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 17:07:51	9332ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-07-16 13:09:50	1122ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-09 17:25:42	956ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-03 04:13:06	1728ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-25 20:41:32	826ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-23 19:09:07	1180ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 19:03:24	852ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-20 01:51:51	1841ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-18 04:27:16	998ms	5 NS 1 A 3 MX	⚠️ Bogus	View