What does this error mean?

The server understands the request but refuses access to the resource.

Probable causes

ACL
WAF
filesystem rights.
application rule.

Verification and resolution

Compare 401 and 403.
Check log server/WAF.
Control permissions.

Precaution: Do not open the general permissions to solve a 403.

← Return to error codes

Quick diagnostic.

To diagnose HTTP code 403 in the Web domain, start with the following check: Compare 401 and 403. Then compare the result to this probable cause: ACL. Save the context and time of appearance to compare behavior before and after correction. Priority level indicated: Average.