mathcore.dk

📜 Historical scan 2026-10-15 21:47:13  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mathcore.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 July 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.210.56.201 is hosted by Adeo Datacenter ApS (AS202914) in Denmark. Mail is handled by .. 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#

2 records   33ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
91.210.56.201 43200s — AS202914 Adeo Datacenter ApS 91.210.56.0/24 🇩🇰 Denmark —

📧 MX Records#

1 records   28ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 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 2026-10-16 22:33:27
www91.210.56.201 (AS202914) (address records, no CNAME)
www vs bare domainSame network
mathcore.dk: 91.210.56.201 (AS202914)
www.mathcore.dk: 91.210.56.201 (AS202914)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

39ms
FieldValue
Serial2026101501
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-15 12:53:32
FieldValue
RegistrarONE.COM A/S
Registered2018-07-22
Expires2027-07-31 (286d)

🔗 Same registrant#

6 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).

DomainRegistrar
besknumse.dkONE.COM A/S
bitmax.dkONE.COM A/S
fym.dkONE.COM A/S
lansensor.dkONE.COM A/S
lorteopslag.dkPunktum dk A/S (direct)
megalcd.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
33ms
A
42ms
MX
28ms
AAAA
36ms
TXT
129ms
CAA
31ms
HTTPS
41ms
TLSA
290ms
SOA
39ms
MTA-STS
50ms
DNSSEC
120ms
SRV
55ms
Total
747ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-16 22:33:27 1130ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-15 21:47:13 shown 747ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-22 03:40:24 735ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-26 10:56:51 795ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-25 07:06:52 6161ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-23 07:55:05 5275ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-27 18:46:10 1140ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-20 15:19:06 1258ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-20 01:43:46 1569ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-19 23:11:37 863ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-18 06:29:18 743ms 2 NS 1 A 4 MX 🔒 Secure
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