optour.dk

📜 Historical scan 2026-06-21 03:33:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optour.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.121.27.182 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by mx.optour.dk.cust.b.hostedemail.com. 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 43ms

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 362ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.121.27.182	1799s	ec2-3-121-27-182.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.96.0.0/11	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	mx.optour.dk.cust.b.hostedemail.com	64.98.36.4	mx.b.hostedemail.com	AS32491 Tucows.com Co.

🔷 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 2026-10-12 11:35:18

www	3.121.27.182 (AS16509) (address records, no CNAME)
www vs bare domain	Same network optour.dk: 3.121.27.182 (AS16509) www.optour.dk: 3.121.27.182 (AS16509)
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#

380ms

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

🏷️ SOA#

138ms

Field	Value
Serial	2026030501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 00:03:14

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-03-07
Expires	2027-03-06 (137d)

📋 WHOIS#

⏱️ Lookup Timing#

43ms

362ms

38ms

AAAA

69ms

TXT

643ms

CAA

138ms

HTTPS

146ms

TLSA

624ms

SOA

138ms

MTA-STS

39ms

DNSSEC

380ms

SRV

543ms

Total

1712ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 20:22:15	1252ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:39:10	2312ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 00:07:35	1494ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 21:05:07	1404ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 13:33:03	1796ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 12:26:40	1839ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 16:13:30	2266ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 03:33:46 shown	1712ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 19:02:09	4590ms	2 NS 1 A 1 MX	🔒 Secure