Fast Domain Checker

Quickly check domain availability across popular TLDs.

Find your perfect domain name in milliseconds. Fast Domain Checker is a lightweight, privacy-first developer tool designed to verify domain availability across 100+ Top-Level Domains (TLDs) instantly. Instead of relying on slow WHOIS lookups, our extension queries Google's Public DNS API to deliver lightning-fast results with ~90% accuracy. If it's not connected to a host, it shows as available! 🚀 KEY FEATURES: • Instant Verification: Check multiple domains at once without loading screens. • Smart TLD Management: Pin your favorite extensions (.com, .io, .ai, etc.) and hide the rest. • Favorites & History: Star your best ideas and keep track of your recent searches. All data is saved strictly locally on your device. • Beautiful UI: Seamlessly adapts to your workflow with stunning Dark and Light modes. • One-Click Copy: Copy available domains instantly to your clipboard. 🔒 PRIVACY FIRST: We respect your data. Fast Domain Checker does not track you, does not use analytics, and never sends your personal data to any external servers. Your history and preferences stay 100% local. Built with performance and minimal design in mind. Powered by Core42.