fermat.dk DNS records

🖥️ Nameservers3 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.websupport.cz	2a10:bbc0::11 45.10.97.11	ns1.websupport.eu ns1.websupport.eu	AS25234 ACTIVE 24, s.r.o. AS25234 ACTIVE 24, s.r.o.
ns2.websupport.cz	185.71.159.12 2a02:250:3::12	ns2.websupport.eu ns2.websupport.eu	AS25234 ACTIVE 24, s.r.o. AS25234 ACTIVE 24, s.r.o.
ns3.websupport.eu	2a10:bbc0::13 45.10.97.13	ns3.websupport.eu ns3.websupport.eu	AS25234 ACTIVE 24, s.r.o. AS25234 ACTIVE 24, s.r.o.

🌍 A Records1 records 66ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
95.168.212.21	600s	21.0-26.212.168.95.in-addr.arpa nai10.vas-server.cz	AS39392	SH.cz s.r.o.	95.168.192.0/19	🇨🇿 Czechia	—

📧 MX Records5 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	600s	aspmx.l.google.com	209.85.233.26 2a00:1450:4010:c0e::1b 2a00:1450:4010:c0e::1b	lr-in-f26.1e100.net lu-in-x1b.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	600s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	600s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 248ms

TXT Record
google-site-verification=aVW9mYvcJ7AGZFQv0IaLbQFXRw_N79GRZ7CGFOy2QwU
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (fermat.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC2067ms

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

🏷️ SOA0ms

Field	Value
Serial	1744801413
Primary NS (MNAME)	ns1.websupport.cz
Responsible (RNAME)	admin@websupport.cz
Refresh	7200s
Retry	2048s
Expire	1048576s
Minimum (neg-cache TTL)	2560s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

66ms

MX

71ms

AAAA

51ms

TXT

248ms

CAA

65ms

HTTPS

45ms

TLSA

250ms

SOA

0ms

MTA-STS

66ms

DNSSEC

2067ms

SRV

73ms

Total

2811ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:08:01	2811ms	3 NS 1 A 5 MX	🔒 Secure	View
2026-08-24 04:18:34	1708ms	3 NS 1 A 5 MX	🔒 Secure	View
2026-07-29 15:40:49	10445ms	3 NS 1 A 5 MX	🔒 Secure	View
2026-07-03 13:33:07	6240ms	3 NS 1 A 5 MX	🔒 Secure	View
2026-06-28 01:54:42	1159ms	3 NS 1 A 5 MX	🔒 Secure	View
2026-06-17 10:07:19	1878ms	3 NS 1 A 5 MX	🔒 Secure	View