dfko.dk
Last scanned: 2026-08-26 09:54:47  ·  3722ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   48ms
NameserverIP addressesPTRASN / ISP
ns-1208.awsdns-23.org 205.251.196.184
2600:9000:5304:b800::1		 ns-1208.awsdns-23.org
ns-1208.awsdns-23.org		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-158.awsdns-19.com 205.251.192.158
2600:9000:5300:9e00::1		 ns-158.awsdns-19.com
ns-158.awsdns-19.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-1585.awsdns-06.co.uk 205.251.198.49
2600:9000:5306:3100::1		 ns-1585.awsdns-06.co.uk
ns-1585.awsdns-06.co.uk		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-774.awsdns-32.net 205.251.195.6
2600:9000:5303:600::1		 ns-774.awsdns-32.net
ns-774.awsdns-32.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
🌍 A Records1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.31.77.87 36000s web01.pixelhuset.dk AS47527 DLX A/S 185.31.76.0/22 🇩🇰 Denmark Herning
📧 MX Records1 records   54ms
PriorityTTLMail ServerIP addressesPTRASN
10 36000s mail.dfko.dk 185.31.77.87 web01.pixelhuset.dk AS47527 DLX A/S
🔷 AAAA Records (IPv6)1 records   47ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a00:b920:3:1337::77:87 360s web01.pixelhuset.dk AS47527 DLX A/S 2a00:b920:0:0:0:0:0:0/29 🇩🇰 Denmark Herning
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   237ms
TXT Record
v=spf1 include:sendgrid.net mx a ~all
✉️ SPF
PolicyRecord (dfko.dk)
~all (soft fail) v=spf1 include:sendgrid.net mx a ~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)
🔐 DNSSEC105ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1
Primary NS (MNAME)ns-774.awsdns-32.net
Responsible (RNAME)awsdns-hostmaster@amazon.com
Refresh7200s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
48ms
A
43ms
MX
54ms
AAAA
47ms
TXT
237ms
CAA
61ms
HTTPS
53ms
TLSA
104ms
SOA
0ms
MTA-STS
94ms
DNSSEC
105ms
SRV
83ms
Total
3722ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 09:54:47 3722ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 14:47:53 4957ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 06:00:39 5633ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 07:57:12 941ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-23 00:57:14 864ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 02:35:34 561ms 4 NS 1 A 1 MX 🔓 Insecure View
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