Domain Check

Universal domain availability checker with RDAP/WHOIS, batch checks, TLD presets, and name generation.

Checks domain availability across 1,200+ TLDs using a dual-protocol engine with RDAP-first and automatic WHOIS fallback. Supports batch checking with up to 100 concurrent queries, 11 curated TLD presets for different use cases, pattern-based domain name generation, and detailed registrar information. Available as a CLI, Rust library, and MCP server.