304
HTTP 304 Not Modified
3xx Redirection
- Home
- > HTTP Status Codes >
- > 3xx >
- 304
Menu
Blog
Encoder & Decoder
Utility
General
- SMS Counter
- Check String Length
- Password Generator
- CHMOD Calculator
- Cron Job Command Generator
- Shortened URL Checker
- RGB to HEX Converter
- Epoch Unix Timestamp Converter
- UUID & ULID Generator
- Timezone Converter
Image Tools
PDF Tools
Minifier
Web Dev
- QR Code Generator
- Barcode Generator
- Lorem Ipsum Generator
- HTML Entities
- MIME Types Table Reference
- HTTP Status Codes
- What Is My IP Address
- JSON Formatter & Validator
- SQL Formatter & Beautifier
- XML Formatter & Beautifier
- YAML Formatter & Beautifier
- Text Case Converter
- JSON to CSV Converter
- Clipboard Workspace
- JSON Validator & Repair
- JSON Schema Validator
Laravel
- All Laravel Tools
- Collection Playground
- Eloquent Relationship Generator
- Validation Rule Generator
- Migration Generator
- Scheduler Generator
- Middleware Pipeline Visualizer
- Eloquent Query Builder Generator
- Laravel Artisan Cheat Sheet
Tailwind
3xx Redirection
RFC 7232, Section 4.1
What is HTTP 304 Not Modified?
The 304 (Not Modified) status code indicates that a conditional GET request has been received and would have resulted in a 200 response if the condition was not true. The response has no body — the client should use its cached copy. This is the foundation of HTTP caching, allowing browsers to validate cached resources without re-downloading them.
Common Use Cases
- Browser cache validation with ETag headers
- Cache validation with Last-Modified headers
- Reducing bandwidth for frequently accessed resources