Check if your Nostr identifier is working correctly
Enter your Nostr identifier to check if it's configured correctly
Examples: alice@example.com, bob@nostr.bar, _@yourdomain.com
Validating your identifier...
Check your NIP-05 identifier in seconds. Get detailed feedback on configuration issues.
Verify that your server has proper CORS headers configured for Nostr clients.
Ensure your JSON response follows the NIP-05 specification correctly.
Get a comprehensive report on your NIP-05 setup with actionable fixes.
NIP-05 is a verification standard for Nostr that maps human-readable names (like email addresses) to Nostr public keys. It helps people find and verify you on the Nostr network.
A working NIP-05 identifier gives you a verified checkmark in most Nostr clients, makes you easier to find, and proves you control a specific domain. It's like Twitter's blue checkmark but decentralized!
This tool validates that your NIP-05 identifier is configured correctly by checking: the URL format, HTTPS configuration, CORS headers, JSON format, and that your public key is included in the response.
CORS (Cross-Origin Resource Sharing) headers allow Nostr clients running in browsers to fetch your NIP-05 data. Without proper CORS headers, your identifier won't work in web-based Nostr clients.
Check the detailed error messages in the validation results. Common issues include: missing CORS headers, incorrect JSON format, HTTPS not enabled, or wrong file location. The checker will tell you exactly what needs to be fixed.
Yes! Using "_" (underscore) as your username means your NIP-05 identifier is just your domain name (like _@example.com displays as "example.com"). This is popular for personal domains.
The file must be at: https://yourdomain.com/.well-known/nostr.json. It must be accessible via HTTPS and return proper CORS headers.
You can either: (1) Set it up yourself on your own domain, (2) Use a free NIP-05 provider, or (3) Purchase a premium identifier from services like ours!
Get your verified Nostr identity today