Ricerca codici HTTP - Guida di riferimento
Strumento gratuito di ricerca codici di stato HTTP. Sfoglia tutti i codici HTTP (100-599) con descrizioni dettagliate e soluzioni.
Continue
1xx Informational
The server has received the request headers and the client should proceed to send the request body.
Common Examples:
- File upload
- Large POST request
Switching Protocols
1xx Informational
The requester has asked the server to switch protocols and the server agrees to do so.
Common Examples:
- WebSocket upgrade
- HTTP to HTTPS upgrade
Early Hints
1xx Informational
Used to return some response headers before final HTTP message.
Common Examples:
- Link preloading
- Resource hints
OK
2xx Success
The request succeeded. The result meaning depends on the HTTP method used.
Common Examples:
- GET returns data
- POST creates resource
- PUT updates resource
Solutions:
- Default response for successful HTTP requests. No action needed.
Created
2xx Success
The request succeeded and a new resource was created as a result.
Common Examples:
- POST creates new user
- POST creates new article
- POST creates new order
Solutions:
- The response should include a Location header with the URI of the new resource.
Accepted
2xx Success
The request has been accepted for processing but processing has not been completed.
Common Examples:
- Async job queued
- Background task started
- Batch processing initiated
Solutions:
- The server should provide a status URI where the client can check progress.
No Content
2xx Success
The request succeeded but there is no content to return.
Common Examples:
- DELETE successful
- PUT successful
- Options request
Solutions:
- Commonly used with DELETE or PUT requests. No response body is expected.
Partial Content
2xx Success
The server is delivering only part of the resource due to a range header sent by the client.
Common Examples:
- Video streaming
- Resume downloads
- Large file downloads
Solutions:
- Ensure Content-Range header is present in the response.
Multiple Choices
3xx Redirection
The request has more than one possible response.
Common Examples:
- Multiple file formats available
- Content negotiation fallback
Moved Permanently
3xx Redirection
The URL of the requested resource has been changed permanently.
Common Examples:
- Domain migration
- URL restructure
- Old API endpoint deprecated
Solutions:
- Update your bookmarks and links to use the new URL. Search engines will update their index.
Found
3xx Redirection
The URI of the requested resource has been changed temporarily.
Common Examples:
- Temporary redirect
- Maintenance page
- Load balancing
Solutions:
- Resubmit the request to the new location. The original URL is still valid.
See Other
3xx Redirection
The server sent this response to direct the client to get the requested resource at another URI with a GET request.
Common Examples:
- Form submission result
- Post-Redirect-Get pattern
Not Modified
3xx Redirection
The resource has not been modified. Use your cached copy.
Common Examples:
- Browser cache hit
- ETag matches
- Conditional GET request
Solutions:
- Use the cached version of the resource. No need to re-download.
Temporary Redirect
3xx Redirection
The requested resource is temporarily at another URI, and the request method must not be changed.
Common Examples:
- Temporary maintenance
- Temporary load balancing
Permanent Redirect
3xx Redirection
The requested resource is permanently at another URI, and the request method must not be changed.
Common Examples:
- Permanent migration
- Protocol upgrade
Bad Request
4xx Client Error
The server cannot process the request due to client error (malformed request syntax).
Common Examples:
- Invalid JSON
- Missing required parameter
- Invalid query string
Solutions:
- Check request format and parameters
- Verify headers are correct
- Validate JSON payload
Unauthorized
4xx Client Error
Authentication is required and has failed or has not been provided.
Common Examples:
- Missing API key
- Invalid token
- Expired session
Solutions:
- Include valid authentication credentials
- Refresh or regenerate your API key
- Log in again
Forbidden
4xx Client Error
The client does not have access rights to the content.
Common Examples:
- Insufficient permissions
- Blocked IP address
- Access restricted
Solutions:
- Check your permissions
- Request access from administrator
- Use correct account
Not Found
4xx Client Error
The server cannot find the requested resource.
Common Examples:
- Page deleted
- Wrong URL
- Endpoint no longer exists
Solutions:
- Check the URL for typos
- Check if the resource exists
- Try a search instead
Method Not Allowed
4xx Client Error
The request method is not supported by the server for the requested resource.
Common Examples:
- POST to read-only endpoint
- DELETE on non-deletable resource
Solutions:
- Use the correct HTTP method (GET, POST, PUT, DELETE, etc.)
- Check API documentation
Request Timeout
4xx Client Error
The server timed out waiting for the request.
Common Examples:
- Slow network
- Large file upload
- Server overloaded
Solutions:
- Retry the request
- Increase timeout settings
- Check network connection
Conflict
4xx Client Error
The request conflicts with the current state of the server (e.g., version conflict).
Common Examples:
- Duplicate entry
- Version mismatch
- Concurrent update conflict
Solutions:
- Refresh data and retry
- Resolve conflicts manually
- Update to latest version
Gone
4xx Client Error
The requested resource is no longer available and will not be available again.
Common Examples:
- Permanently deleted resource
- Deprecated API
- Archived content
Solutions:
- The resource is permanently gone. Use alternative endpoints if available.
Too Many Requests
4xx Client Error
The user has sent too many requests in a given amount of time (rate limiting).
Common Examples:
- Rate limit exceeded
- Too many API calls
- Brute force detection
Solutions:
- Wait before retrying
- Implement exponential backoff
- Check rate limit headers
Internal Server Error
5xx Server Error
The server encountered an unexpected condition that prevented it from fulfilling the request.
Common Examples:
- Code exception
- Database error
- Unhandled error
Solutions:
- Retry the request
- Contact support
- Check server logs
Not Implemented
5xx Server Error
The server does not support the functionality required to fulfill the request.
Common Examples:
- Feature not yet implemented
- Unsupported HTTP method
Bad Gateway
5xx Server Error
The server received an invalid response from an upstream server.
Common Examples:
- Proxy error
- Load balancer issue
- Upstream service down
Solutions:
- Retry the request
- Check upstream services
- Check server configuration
Service Unavailable
5xx Server Error
The server is currently unable to handle the request due to maintenance or overload.
Common Examples:
- Maintenance window
- Server overloaded
- Service temporarily down
Solutions:
- Wait and retry later
- Check status page
- Contact support if it persists
Gateway Timeout
5xx Server Error
The server did not receive a timely response from an upstream server.
Common Examples:
- Slow upstream server
- Network timeout
- Load balancer timeout
Solutions:
- Retry the request
- Check network connection
- Wait and try again
HTTP Status Codes Reference
HTTP status codes are three-digit responses from a web server indicating the outcome of an HTTP request. They are grouped into five classes: 1xx (Informational), 2xx (Success), 3xx (Redirection), 4xx (Client Error), and 5xx (Server Error). Understanding these codes helps in debugging web applications and APIs.
Common Status Code Categories
- 1xx Informational: Request received, continuing process
- 2xx Success: Request succeeded (200 OK, 201 Created, 204 No Content)
- 3xx Redirection: Further action needed (301 Moved, 302 Found, 304 Not Modified)
- 4xx Client Error: Client request error (400 Bad Request, 404 Not Found, 401 Unauthorized)
- 5xx Server Error: Server failed to fulfill request (500 Internal Error, 503 Service Unavailable)
Use Cases
- Debugging API responses
- Understanding HTTP error messages
- Implementing proper error handling
- Web development and server configuration
- API testing and validation
Valuta questo strumento
4.8 / 5 ยท 175 valutazioni
Resta aggiornato
Ricevi consigli dev e nuovi strumenti ogni settimana.
Niente spam. Cancella quando vuoi.
Enjoy these free tools?
โBuy Me a CoffeeHow to Use HTTP Status Code Lookup
- Enter your search query in the HTTP Status Code Lookup
- Browse or filter the results to find what you need
- Click on an entry to see detailed information
- Copy the relevant details for your use
Common Use Cases
- Looking up HTTP status codes and their meanings
- Understanding API error responses quickly
- Finding the right status code for REST API endpoints
- Learning about HTTP response codes for web development