A free bulk domain (who is) checker tool for checking domain availability based on WHOIS lookups.

http-server is a simple, zero-configuration command-line static HTTP server. Enough for production usage, simple and hackable enough to be used for testing, local development and learning.

ngrok is a simplified API-first ingress-as-a-service that adds connectivity,security, and observability to your apps with no code changes. Tunnel to local http servers, or serve local files.