DomainAge

Free domain age and RDAP (WHOIS successor) lookup. Registration date, age, expiry, registrar, status and nameservers.

API

GET  /v1/domain/{name}
POST /v1/domain   {"domain":"example.com"}   (body max 4 KB)
GET  /v1/meta

Free, about 10 uncached lookups/min per IP (cached results don't count). Registrant contact data is not returned. expires is null when the registry doesn't publish it. Results cached up to 24h. Subdomains are reduced to the registered domain.

Privacy: we don't store your IP or the domains you look up beyond a 24h result cache; your IP is used only for rate limiting; registries see Cloudflare's IP, not yours.

For AI agents (MCP)

DomainAge is also a remote Model Context Protocol (MCP) server. Most MCP clients accept this config; some use a different format (for example, VS Code uses a servers key). Clients with a settings screen just need the URL https://domainage.mike-tusa.workers.dev/mcp.

{ "mcpServers": { "domainage": { "type": "http", "url": "https://domainage.mike-tusa.workers.dev/mcp" } } }

Machine-readable docs: llms.txt · OpenAPI 3.1 spec