fermat.dk

📜 Historical scan 2026-07-03 13:33:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fermat.dk is a .dk domain served by 3 nameservers (ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu). It was registered on 27 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 95.168.212.21 is hosted by SH.cz s.r.o. (AS39392) in Czechia. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no 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 263ms

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 Records#

1 records 325ms

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	Tupadly

📧 MX Records#

5 records 282ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	600s	aspmx.l.google.com	2a00:1450:4001:c21::1b 64.233.167.27	lcfrai-in-f27.1e100.net wl-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	600s	alt1.aspmx.l.google.com	172.253.152.27 2a00:1450:4013:c1e::1a	yulpptr-in-f27.1e100.net yugrqzs-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	600s	alt2.aspmx.l.google.com	142.251.127.27 2404:6800:4000:1025::1b	lcfrai-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	600s	aspmx2.googlemail.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	600s	aspmx3.googlemail.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	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 Records#

2 records 661ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 13:39:27

www	95.168.212.21 (AS39392) (address records, no CNAME)
www vs bare domain	Same network fermat.dk: 95.168.212.21 (AS39392) www.fermat.dk: 95.168.212.21 (AS39392)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~1024 bit below 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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2374ms

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

🏷️ SOA#

0ms

Field	Value
Serial	1744801411
Primary NS (MNAME)	ns1.websupport.cz
Responsible (RNAME)	admin@websupport.cz
Refresh	7200s
Retry	2048s
Expire	1048576s
Minimum (neg-cache TTL)	2560s

📋 Registration#

WHOIS fetched 2026-10-12 21:54:12

Field	Value
Registrar	ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA
Registered	2009-02-27
Expires	2027-02-28 (133d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

263ms

325ms

282ms

AAAA

265ms

TXT

661ms

CAA

211ms

HTTPS

265ms

TLSA

792ms

SOA

0ms

MTA-STS

321ms

DNSSEC

2374ms

SRV

316ms

Total

6240ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 13:39:27	959ms	3 NS 1 A 5 MX	🔒 Secure
2026-09-23 17:02:04	1172ms	3 NS 1 A 5 MX	🔒 Secure
2026-08-27 15:08:01	2811ms	3 NS 1 A 5 MX	🔒 Secure
2026-08-24 04:18:34	1708ms	3 NS 1 A 5 MX	🔒 Secure
2026-07-29 15:40:49	10445ms	3 NS 1 A 5 MX	🔒 Secure
2026-07-03 13:33:07 shown	6240ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-28 01:54:42	1159ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-17 10:07:19	1878ms	3 NS 1 A 5 MX	🔒 Secure