Global RDAP service

This product gives you access to our Global RDAP (Registration Data Access Protocol) server. The server provides availability information (partly including registration data) for individual domains, provided they belong to a TLD offered by CPS-Datensysteme.

We also offer you a quick availability query in check mode. In addition to RDAP and WHOIS, the DNS is also used here. Each check request is also checked against an extensive database of premium domains and hits are marked accordingly in the output

The Global RDAP service is of course only accessible via TLS and secured with access data.

Technical background

Our RDAP server provides you with different information in the two operating modes PROXY and CHECK:

With the PROXY query, the RDAP data available from the registrar for a domain is queried and delivered. If a registrar does not yet provide us with RDAP access, we access the WHOIS data and embed this in the JSON response (“whois_data”: [ARRAY]).

The CHECK query returns pure availability information (“is_available”: “true”) and a corresponding note (“is_premium”: “true”) if the domain queried is a premium domain.