🍁 Fall Sale: Save 25% on Pro Plugins & Books w/ code FALL2026
Web Dev + WordPress + Security

HTTP Error Codes

A list of HTTP Error codes and corresponding definitions:

Informational Codes

  • 100 — Continue
  • 101 — Switching Protocols

Successful Client Requests

  • 200 — OK
  • 201 — Created
  • 202 — Accepted
  • 203 — Non-Authoritative Information
  • 204 — No Content
  • 205 — Reset Content
  • 206 — Partial Content

Client Request Redirected

  • 300 — Multiple Choices
  • 301 — Moved Permanently
  • 302 — Moved Temporarily
  • 303 — See Other
  • 304 — Not Modified
  • 305 — Use Proxy
  • 307 — Temporary Redirect

Client Request Errors

  • 400 — Bad Request
  • 401 — Authorization Required
  • 402 — Payment Required (not used yet)
  • 403 — Forbidden
  • 404 — Not Found
  • 405 — Method Not Allowed
  • 406 — Not Acceptable (encoding)
  • 407 — Proxy Authentication Required
  • 408 — Request Timed Out
  • 409 — Conflicting Request
  • 410 — Gone
  • 411 — Content Length Required
  • 412 — Precondition Failed
  • 413 — Request Entity Too Long
  • 414 — Request URI Too Long
  • 415 — Unsupported Media Type
  • 416 — Requested Range Not Satisfiable
  • 417 — Expectation Failed

Server Errors

  • 500 — Internal Server Error
  • 501 — Not Implemented
  • 502 — Bad Gateway
  • 503 — Service Unavailable
  • 504 — Gateway Timeout
  • 505 — HTTP Version Not Supported

About the Author
Jeff Starr = Creative thinker. Passionate about free and open Web.
USP Pro: Unlimited front-end forms for user-submitted posts and more.
Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
.htaccess made easy: Improve site performance and security.
Thoughts
The Office is Cheers with more irony.
More fine-grained control of macOS screen brightness: hold down Option + Shift before pressing either of the brightness keys. You get 64 increments instead of the usual 16.
REST Pro Tools featured in David McCan’s new video on locking down WordPress.
Gonna try exercise.
Launching my new plugin, REST Pro Tools 🛠️ Granular control of the WP REST API.
The algorithm is way too hypersensitive.
Working on a new pro WP plugin :)
Newsletter
Get news, updates, deals & tips via email.
Email kept private. Easy unsubscribe anytime.