taxgpt.dk

📜 Historical scan 2026-10-03 09:25:20  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

taxgpt.dk is a .dk domain served by 2 nameservers (ns.web4u.cz, ns2.web4u.cz). It was registered on 3 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.91.86.14 is hosted by Web4U s.r.o. (AS39790) in Czechia. Mail is handled by mx1.mailchannels.net, mx2.mailchannels.net. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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#

2 records   85ms
NameserverIP addressesPTRASN / ISP
ns.web4u.cz 185.14.224.241
2001:1568:fd::241		 ns.web4u.cz
ns.web4u.cz		 AS39790 Web4U s.r.o.
AS39790 Web4U s.r.o.
ns2.web4u.cz 2a02:a40:100:28ff::12
85.207.53.12		 ns2.web4u.cz
ns2.web4u.cz		 AS25248 RADIOKOMUNIKACE a.s.
AS25248 RADIOKOMUNIKACE a.s.

🌍 A Records#

1 records   70ms
IPTTLPTRASNISP / OrgCIDRCountryCity
81.91.86.14 900s php7.web4u.cz AS39790 Web4U s.r.o. 81.91.80.0/20 🇨🇿 Czechia —

📧 MX Records#

2 records   55ms
PriorityTTLMail ServerIP addressesPTRASN
10 900s mx1.mailchannels.net 54.187.177.89 ec2-54-187-177-89.us-west-2.compute.amazonaws.com AS16509 Amazon.com, Inc.
10 900s mx2.mailchannels.net 54.187.177.89 ec2-54-187-177-89.us-west-2.compute.amazonaws.com AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover81.91.86.14
🔶 Autoconfig81.91.86.14

🔷 AAAA Records (IPv6)#

1 records   73ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2001:1568::14 900s php7.web4u.cz AS39790 Web4U s.r.o. 2001:1568:0:0:0:0:0:0/32 🇨🇿 Czechia —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 01:29:38
www81.91.86.14 2001:1568::14 (AS39790) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

115ms
FieldValue
Serial2025110301
Primary NS (MNAME)ns.web4u.cz
Responsible (RNAME)admin@web4u.cz
Refresh10800s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)14400s

📋 Registration#

WHOIS fetched 2026-10-21 06:04:30
FieldValue
RegistrarGransy s.r.o.
Registered2025-11-03
Expires2026-11-02 (7d)

🔗 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#

NS
85ms
A
70ms
MX
55ms
AAAA
73ms
TXT
376ms
CAA
72ms
HTTPS
79ms
TLSA
1109ms
SOA
115ms
MTA-STS
94ms
DNSSEC
103ms
SRV
123ms
Total
1980ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-08 01:29:38 1092ms 2 NS 1 A 2 MX 🔓 Insecure
2026-10-03 09:25:20 shown 1980ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-19 11:03:17 2466ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-28 09:40:18 3823ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-26 14:46:44 1156ms 2 NS 1 A 2 MX 🔓 Insecure
2026-06-17 14:02:53 3580ms 2 NS 1 A 2 MX 🔓 Insecure
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