halfdoubleinstitute.dk

Records from scan: 2026-10-14 15:59:38  ·  1283ms total  ·  last checked 2026-10-17 19:48 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

halfdoubleinstitute.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.200.179.139 is hosted by Amazon.com, Inc. (AS16509) in Ireland. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records   163ms
NameserverIP addressesPTRASN / ISP
ns1.eurodns.com 199.167.66.107
2610:1c8:b002::107		 ns1.eurodns.com
ns1.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns2.eurodns.com 104.37.178.107
2610:1c8:b001::107		 ns2.eurodns.com
ns2.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns3.eurodns.com 199.167.66.108
2610:1c8:b002::108		 ns3.eurodns.com
ns3.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns4.eurodns.com 104.37.178.108
2610:1c8:b001::108		 ns4.eurodns.com
ns4.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC

🌍 A Records#

3 records   125ms
IPTTLPTRASNISP / OrgCIDRCountryCity
18.200.179.139 600s ec2-18-200-179-139.eu-west-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 18.200.0.0/14 🇮🇪 Ireland Dublin
52.208.179.40 600s ec2-52-208-179-40.eu-west-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 52.208.0.0/13 🇮🇪 Ireland Dublin
52.215.88.119 600s ec2-52-215-88-119.eu-west-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 52.208.0.0/13 🇮🇪 Ireland Dublin

📧 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

🧩 Web & zone#

checked 2026-10-14 15:59:38
www18.200.179.139 52.208.179.40 52.215.88.119 (AS16509) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

266ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

89ms
FieldValue
Serial2025111264
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
163ms
A
125ms
MX
151ms
AAAA
159ms
TXT
377ms
CAA
131ms
HTTPS
144ms
TLSA
281ms
SOA
89ms
MTA-STS
185ms
DNSSEC
266ms
SRV
207ms
Total
1283ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 15:59:38 shown 1283ms 4 NS 3 A 0 MX 🔒 Secure
2026-10-13 15:11:04 1119ms 4 NS 3 A 0 MX 🔒 Secure
2026-10-09 05:32:39 541ms 4 NS 3 A 0 MX 🔒 Secure
2026-10-02 00:26:29 851ms 4 NS 3 A 0 MX 🔒 Secure
2026-09-25 23:18:37 644ms 4 NS 3 A 0 MX 🔒 Secure
2026-09-24 23:03:13 780ms 4 NS 3 A 0 MX 🔒 Secure
2026-09-10 18:49:14 784ms 4 NS 3 A 0 MX 🔒 Secure
2026-08-20 19:23:48 5454ms 4 NS 3 A 0 MX 🔒 Secure
2026-08-19 18:06:04 5353ms 4 NS 3 A 0 MX 🔒 Secure
2026-08-18 18:05:10 2879ms 4 NS 3 A 0 MX 🔒 Secure
2026-08-06 12:05:01 1221ms 4 NS 3 A 0 MX 🔒 Secure
2026-08-02 03:19:23 1575ms 4 NS 3 A 0 MX 🔒 Secure
2026-07-14 11:52:54 955ms 4 NS 3 A 0 MX 🔒 Secure
2026-06-27 06:56:52 894ms 4 NS 3 A 0 MX 🔒 Secure
2026-06-27 02:01:44 853ms 4 NS 3 A 0 MX 🔒 Secure
2026-06-25 18:52:17 1258ms 4 NS 3 A 0 MX 🔒 Secure
2026-06-17 10:20:38 2190ms 4 NS 3 A 0 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone