Best practices

Best practices

1. Always use caching

Add prefer_cache=1 to all requests unless you specifically need fresh data.

2. Batch your requests

Use the bulk endpoint instead of making multiple individual requests.

3. Check coverage first

Inspect RDAP endpoint mappings: GET /v1/coverage. This is not a complete lookup-support list; some TLDs use traditional WHOIS fallback.

4. Handle errors gracefully

Implement retry logic with exponential backoff for transient failures.