matematikfesser.dk
Last scanned: 2026-08-26 22:31:46  ·  879ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   86ms
NameserverIP addressesPTRASN / ISP
cortney.ns.cloudflare.com 108.162.192.87
172.64.32.87
173.245.58.87
2606:4700:50::adf5:3a57
2803:f800:50::6ca2:c057
2a06:98c1:50::ac40:2057		 cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
eric.ns.cloudflare.com 108.162.193.112
172.64.33.112
173.245.59.112
2606:4700:58::adf5:3b70
2803:f800:50::6ca2:c170
2a06:98c1:50::ac40:2170		 eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
🌍 A Records1 records   78ms
IPTTLPTRASNISP / OrgCIDRCountryCity
134.213.60.44 300s — AS15395 Rackspace Ltd. 134.213.0.0/16 🇬🇧 United Kingdom —
📧 MX Records
📧
No MX records found
🔷 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.matematikfesser.dk 6co_I5vyjHbrTSJTwZlJVWzn1c0T5xvWHJ212Cu0Fgw
TXT _acme-challenge.matematikfesser.dk oDHvBfHjzDrEY4RzjHTLKNaaYsSBVfRce_QF1b5Yv_E
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC141ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2412998988
Primary NS (MNAME)cortney.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
86ms
A
78ms
MX
64ms
AAAA
83ms
TXT
232ms
CAA
73ms
HTTPS
66ms
TLSA
331ms
SOA
0ms
MTA-STS
112ms
DNSSEC
141ms
SRV
112ms
Total
879ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 22:31:46 879ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-23 21:52:10 3020ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-08-16 03:03:08 893ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-26 04:49:22 1072ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-20 01:40:32 467ms 2 NS 1 A 0 MX 🔓 Insecure View
2026-06-18 02:19:42 756ms 2 NS 1 A 0 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone