istrukt.dk

📜 Historical scan 2026-10-07 12:10:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

istrukt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 143ms

Nameserver	IP addresses	PTR	ASN / 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 131ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.239.32.21	43200s	any-in-2015.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—

📧 MX Records#

5 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c01::1b	rc-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.179.20.27 2404:6800:4000:1027::1b	ncboms-in-f27.1e100.net ncboms-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt3.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	43200s	alt4.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 245ms

TXT Record
google-site-verification=xeJQLMHwShMe8fd7xXaGKN0LZyMx40zCdr4k0yCJnhc

✉️ 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 2026-10-13 02:13:36

www	216.239.32.21 (AS15169) (address records, no CNAME)
www vs bare domain	Same network istrukt.dk: 216.239.32.21 (AS15169) www.istrukt.dk: 216.239.32.21 (AS15169)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

223ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

99ms

Field	Value
Serial	2026100701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

143ms

131ms

118ms

AAAA

127ms

TXT

245ms

CAA

138ms

HTTPS

111ms

TLSA

144ms

SOA

99ms

MTA-STS

131ms

DNSSEC

223ms

SRV

166ms

Total

918ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 02:13:36	1107ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-07 12:10:15 shown	918ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-01 06:56:10	626ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-29 21:18:59	568ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-26 20:35:58	1350ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-23 10:05:53	709ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-31 21:04:49	16965ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-28 02:22:19	815ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 11:41:30	2495ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 09:41:19	2493ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 19:29:19	746ms	2 NS 1 A 5 MX	🔒 Secure