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Comprehensive Guide to Status Codes and Errors: What You Need to Know Status Codes and Errors: Learn About the Different Types and Their Meanings

In the realm of web development, understanding status codes and errors is crucial for maintaining a smooth user experience and optimizing website performance. These codes are part of the HTTP protocol and serve as communication between a client (such as a web browser) and a server. Here, we’ll explore the different types of status codes and errors, their meanings, and how to address them.

1. Informational Responses (100-199)

100 Continue: The server has received the request headers, and the client should proceed to send the request body.

101 Switching Protocols: The server agrees to switch protocols as requested by the client.

Informational responses indicate that the initial part of the request has been received and is being processed.

2. Successful Responses (200-299)

200 OK: The request was successful, and the server is returning the requested resource.

201 Created: The request was successful, and a new resource was created as a result.

Successful responses confirm that the client’s request was successfully received, understood, and accepted.

3. Redirection Messages (300-399)

301 Moved Permanently: The requested resource has been moved to a new URL permanently.

302 Found: The requested resource is temporarily located at a different URL.

Redirection messages inform the client that they need to take additional action to complete the request.

4. Client Error Responses (400-499)

400 Bad Request: The server cannot process the request due to client error (e.g., malformed request syntax).

401 Unauthorized: The request requires user authentication.

403 Forbidden: The server understands the request but refuses to authorize it.

404 Not Found: The requested resource could not be found on the server.

Client error responses indicate issues with the client’s request, often requiring action on the client’s part to resolve.

5. Server Error Responses (500-599)

500 Internal Server Error: The server encountered an unexpected condition that prevented it from fulfilling the request.

502 Bad Gateway: The server received an invalid response from an inbound server.

503 Service Unavailable: The server is currently unable to handle the request due to temporary overloading or maintenance.

504 Gateway Timeout: The server did not receive a timely response from an upstream server.

Server error responses signify problems on the server side, often requiring the server administrator to take action.

Troubleshooting and Handling Errors

Client-Side Errors: Check the request URL, ensure proper authentication, and verify request headers and body. Correcting these can often resolve client-side errors.

Server-Side Errors: Investigate server logs, check server configuration, and ensure all services and dependencies are running correctly. Proper monitoring tools can help identify and address server issues promptly.

Redirections: Ensure correct URLs and proper use of HTTP status codes to guide clients correctly. Update links and bookmarks if permanent moves occur.

Informational Responses: Generally, these do not require action but indicate the request is being processed.

Read full blog: https://www.evendigit.com/types-of-web-response-codes-and-errors/

Conclusion

Understanding the different types of status codes and errors is essential for diagnosing and resolving issues in web development. By familiarizing yourself with these codes, you can improve your website’s performance, enhance user experience, and ensure efficient communication between clients and servers. Regular monitoring and prompt troubleshooting can help maintain a seamless and reliable web presence.

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