Final answer:
To look up a European domain, check the RIPE NCC, the RIR responsible for IP address distribution in Europe, and utilize its WHOIS database for domain information.
Step-by-step explanation:
If you have been asked to look up a domain that is located in Europe, the RIR (Regional Internet Registry) you should examine first is the RIPE NCC (Réseaux IP Européens Network Coordination Centre). The RIPE NCC is one of the five regional Internet registries that allocate and manage IP addresses and related resources. It specifically serves Europe, the Middle East, and parts of Central Asia.
When you need to find information about a domain's registration, such as ownership, contact information, or associated IP addresses, you can utilize RIPE's WHOIS database. This searchable database is an essential tool for network administrators and others looking for information related to domain registrations and IP address allocations in Europe.