HTTP Status Code 401

The status code 401, also known as "Unauthorized," indicates that you don't have the necessary permission to access a specific resource. This happens when you try to access a webpage or file that requires authentication, but you either haven't provided credentials, or the credentials you provided are incorrect or expired.

Here's a breakdown of what a 401 error means:

• Client-side error: The issue lies with the way your request was formatted or the information you included.
• Missing or incorrect credentials: You likely didn't enter a username and password, or the ones you entered were wrong.
• Expired credentials: Your session may have timed out, or your authentication token might no longer be valid.

The way a 401 error displays can vary depending on the website. You might see a generic error message or a login prompt.

Other 4xx Status Codes

• 400 Bad Request
• 401 Unauthorized
• 402 Payment Required
• 403 Forbidden
• 404 Not Found
• 405 Method Not Allowed
• 406 Not Acceptable
• 407 Proxy Authentication Required
• 408 Request Timeout
• 409 Conflict
• 410 Gone
• 411 Length Required
• 412 Precondition Failed
• 413 Payload Too Large
• 414 URI Too Long
• 415 Unsupported Media Type
• 416 Range Not Satisfiable
• 417 Expectation Failed
• 418 I'm a teapot
• 421 Misdirected Request
• 422 Unprocessable Entity
• 423 Locked
• 424 Failed Dependency
• 425 Too Early
• 426 Upgrade Required
• 428 Precondition Required
• 429 Too Many Requests
• 431 Request Header Fields Too Large
• 451 Unavailable For Legal Reasons