12xl.dk DNS records

🖥️ Nameservers4 records 20ms

Nameserver	IP addresses	PTR	ASN / ISP
1.ns.gigaserver.cz	185.66.36.92 2a03:1e20:0:5::92	1.ns.gigaserver.cz 1.ns.gigaserver.cz	AS59925 Seonet Multimedia s.r.o. AS59925 Seonet Multimedia s.r.o.
2.ns.gigaserver.cz	185.66.36.93 2a03:1e20:0:5::93	2.ns.gigaserver.cz 2.ns.gigaserver.cz	AS59925 Seonet Multimedia s.r.o. AS59925 Seonet Multimedia s.r.o.
3.ns.gigaserver.cz	185.66.36.250 2a03:1e20:0:5::250	3.ns.gigaserver.cz 3.ns.gigaserver.cz	AS59925 Seonet Multimedia s.r.o. AS59925 Seonet Multimedia s.r.o.
4.ns.gigaserver.cz	2603:1020:201::36d 40.67.208.152	— 4.ns.gigaserver.cz	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
31.31.76.176	2208s	—	AS197019	WEDOS Internet, a.s.	31.31.72.0/21	🇨🇿 Czechia	—

📧 MX Records2 records 24ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	2208s	9dd46d5caac7ecab.mx2.emailprofi.seznam.cz	2a02:598:2::1146 77.75.77.146	wildcard.mx2.emailprofi.seznam.cz wildcard.mx2.emailprofi.seznam.cz	AS43037 Seznam.cz, a.s. AS43037 Seznam.cz, a.s.
20	2208s	9dd46d5caac7ecab.mx1.emailprofi.seznam.cz	2a02:598:2::1056 77.75.77.56	wildcard.mx1.emailprofi.seznam.cz wildcard.mx1.emailprofi.seznam.cz	AS43037 Seznam.cz, a.s. AS43037 Seznam.cz, a.s.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	12xl.dk → 31.31.76.176
🔶 Autoconfig	12xl.dk → 31.31.76.176

🔷 AAAA Records (IPv6)1 records 17ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2b88:2:1::72c0:1	2208s	—	AS197019	WEDOS Internet, a.s.	2a02:2b88:0:0:0:0:0:0/32	🇨🇿 Czechia	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 108ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	50	0	443	mail.gigaserver.cz

📝 TXT Records1 records 82ms

TXT Record
v=spf1 mx include:spf.mmail.igloonet.cz include:spf.seznam.cz ~all

✉️ SPF

Policy	Record (12xl.dk)
~all (soft fail)	v=spf1 mx include:spf.mmail.igloonet.cz include:spf.seznam.cz ~all

📨 DMARC

Policy	Record (_dmarc.12xl.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:u3fh2ile0c@dmarc-reports.ecomailapp.com; fo=1; ri=86400;

📬 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.12xl.dk	12xl.dk

🔗 TLSA / DANE

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

🔐 DNSSEC108ms

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	1776411901
Primary NS (MNAME)	1.ns.gigaserver.cz
Responsible (RNAME)	dns@gigaserver.cz
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

20ms

A

24ms

MX

24ms

AAAA

17ms

TXT

82ms

CAA

36ms

HTTPS

47ms

TLSA

160ms

SOA

0ms

MTA-STS

34ms

DNSSEC

108ms

SRV

108ms

Total

2536ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-24 14:37:18	2536ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-08-24 14:14:09	5881ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 13:20:38	8495ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 13:12:34	1983ms	4 NS 1 A 2 MX	🔓 Insecure	View