How many types of error codes?

[gunjanjain]

Hello Friends,

How many types of error codes?

[avanti]

The Top 5 Most Common Error Messages and How to Fix Them

HTTP ERROR 401 (UNAUTHORIZED)
HTTP ERROR 400 (BAD REQUEST)
HTTP ERROR 403 (FORBIDDEN)
HTTP ERROR 404 (NOT FOUND)
HTTP ERROR 500 (INTERNAL SERVER ERROR)

[saichavhan]

Common HTML error codes
Code Description

401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found

[Clay_P]

Here are some of the most common error codes and their explanation:

404 Not Found: The requested resource is no longer available or, more specifically, not found.

Reasons for getting 404 Error:

Typos in the searched URL
A missing or extra letter in a typed-in URL,
a wrong domain name can often result in a 404 error.
Or the linked page does not exist on the web


403 Forbidden: This code means access to the resource is forbidden.

Reasons for getting 403 Error:

The server maintains a whitelist of machines that can access that system and the user’s machine not being on it
The client’s certificate is no longer valid or missing
A web server will not have access to website files because of faulty permissions


The server owner will need to change the file permissions to fix this.

500 Internal Server Error: Server-side error code - doesn’t identify the specific problem

Reasons for getting 500 Error:

When none of the other 500 error codes make sense


You can retry the request attempt again and possibly get a different response

503 Service Unavailable: Could be a temporary problem - the webserver isn’t available

Reasons for getting 503 Error:

The web server just restarted and is in the middle of initialization
It is overloaded and can’t handle any more concurrent requests
It is just down for maintenance


504 Gateway Timeout: Indicating a gateway timeout.

Reasons for getting 504 Error:

There could be a DNS issue
A network device might be down
The other machine could just be overly busy and unable to process the request

[pihu147741]

Http error 401 (unauthorized)
http error 400 (bad request)
http error 403 (forbidden)
http error 404 (not found)
http error 500 (internal server error)

[radhamadhav]

400 Bad Request.
401 Unauthorized.
403 Forbidden.
404 Not found.
500 Internal Server Error.
502 Bad Gateway.
503 Service unavailable.
504 Gateway Timeout.

[mayurgupta]

400 Bad Request.
401 Unauthorized.
403 Forbidden.
404 Not Found.
500 Internal Server Error.
502 Bad Gateway.
503 Service Unavailable.
504 Gateway Timeout.

[AbhayKunda]

1xx – informational.
2xx – successful.
3xx – redirection.
4xx – client error.
5xx – server error.