The domain is managed by INWX GmbH (IANA ID 1420) and is active. It uses the nameservers ns3.inwx.eu, ns4.inwx.com and ns5.inwx.net. An older registration date is often seen as a sign of an established website, although age alone says nothing about who owns it today. Managed DNS providers are often used for speed, security and protection against attacks. Registrars are the companies accredited to sell and manage domain names, and the sponsoring registrar is the one currently responsible for this name. Public WHOIS records can show the registrant organisation and country, while many owners now hide personal details behind privacy services. Registry locks add an extra layer of protection for valuable names, because changes then need manual confirmation by the registry.
The latest snapshots show no change in the registration record, which suggests a stable setup. The complete history is available below and can be exported for your own analysis.
The Whois Data Center archive contains 9 historical WHOIS snapshots for INVESTIGATEUR.LU. The latest available snapshot is dated November 9, 2022. A long history with few changes usually points to a stable owner, while frequent changes can signal a transfer or a resale. Investigators use dated records to establish who controlled a domain at a specific point in time.
WHOIS Record