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HTTP 403 Forbidden

? HTTP 403 Forbidden

? Quick Overview

The 403 Forbidden status code indicates that the server understood the request but refuses to authorize it. The client is authenticated or identifiable, but does not have permission to access the requested resource.

? Key Concepts

  • Client request is valid and well-formed
  • Server understands the request
  • Access is explicitly denied
  • Retrying without permission will not help

? Syntax / Theory

403 errors commonly occur due to permission rules, authentication failures, IP restrictions, or server-side access control mechanisms. Unlike 401 Unauthorized, authentication will not fix a 403 response.

? Code Example(s)

? View Code Example
// Express.js example returning 403 Forbidden
app.get("/admin", (req, res) => {
  res.status(403).send("403 Forbidden: Access denied");
});

? Live Output / Explanation

Server Response

When a user without sufficient privileges accesses /admin, the server responds with 403 Forbidden and blocks access.

? Interactive Example

Select a user role below and try to access the restricted /admin dashboard.

Waiting for request...
? View Source Code for Logic
// Logic simulating the interactive tool above
const role = getCurrentUserRole(); 

if (role === 'admin') {
  return { status: 200, message: "Access Granted" };
} else {
  return { status: 403, message: "Forbidden: Admins only" };
}

? Use Cases

  • Restricting admin-only pages
  • Blocking unauthorized API access
  • IP-based or role-based access control
  • Preventing directory listing

✅ Tips & Best Practices

  • Use 403 only when access is intentionally denied
  • Do not expose sensitive permission logic
  • Combine with proper authentication checks
  • Show user-friendly error pages

? Try It Yourself

  • Create a protected route in your backend
  • Return 403 when user role is insufficient
  • Log forbidden access attempts
  • Customize a 403 HTML error page