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Resource

Basic Tags

Links

Formatting

Form/Table

Others

Attributes

Language

Keyboard

HTML Events

<body>Events

  • onload
  • Script to be run when a document unload

Form Events

  • onblur
  • onchange
  • onfocus
  • onreset
  • onselect
  • onsubmit

Image Events

  • onabort

Mouse Events

  • onclick
  • ondblclick
  • onmousedown
  • onmousemove
  • onmouseout
  • onmouseover
  • onmouseup

Entities

Character

  • " &#34;
  • & &#38;
  • < &#60;
  • > &#62;
  • @ &#64;
  • &#128;
  • &#149;
  • &#153;
  • £ &#163;
  •   &#160;
  • © &#169;

Status 1XX

1XX:Information

  • 100 Continue
  • The server has received the request headers, and the client should proceed to send the request body
  • 101 Switching Protocols
  • The requester has asked the server to switch protocols
  • 103 Checkpoint
  • Used in the resumable requests proposal to resume aborted PUT or POST requests

Status 2XX

2XX:Successful

  • 200 OK
  • The request is OK (this is the standard response for successful HTTP requests)
  • 201 Created
  • The request has been fulfilled, and a new resource is created
  • 202 Accepted
  • The request has been accepted for processing, but the processing has not been completed
  • 203 Non-Authoritative Information
  • The request has been successfully processed, but is returning information that may be from another source
  • 204 No Content
  • The request has been successfully processed, but is not returning any content
  • 205 Reset Content
  • The request has been successfully processed, but is not returning any content, and requires that the requester reset the document view
  • 206 Partial Content
  • The server is delivering only part of the resource due to a range header sent by the client

Status 3XX

3XX:Redirection

  • 300 Multiple Choices
  • A link list. The user can select a link and go to that location. Maximum five addresses
  • 301 Moved Permanently
  • The requested page has moved to a new URL
  • 302 Found
  • The requested page has moved temporarily to a new URL
  • 303 See Other
  • The requested page can be found under a different URL
  • 304 Not Modified
  • Indicates the requested page has not been modified since last requested
  • 306 Switch Proxy
  • No longer used
  • 307 Temporary Redirect
  • The requested page has moved temporarily to a new URL
  • 308 Resume Incomplete
  • Used in the resumable requests proposal to resume aborted PUT or POST requests

Status 4XX

4XX:Client Error

  • 400 Bad Request
  • The request cannot be fulfilled due to bad syntax
  • 401 Unauthorized
  • The request was a legal request, but the server is refusing to respond to it. For use when authentication is possible but has failed or not yet been provided
  • 402 Payment Required
  • Reserved for future use
  • 403 Forbidden
  • The request was a legal request, but the server is refusing to respond to it
  • 404 Not Found
  • The requested page could not be found but may be available again in the future
  • 405 Method Not Allowed
  • A request was made of a page using a request method not supported by that page
  • 406 Not Acceptable
  • The server can only generate a response that is not accepted by the client
  • 407 Proxy Authentication Required
  • The client must first authenticate itself with the proxy
  • 408 Request Timeout
  • The server timed out waiting for the request
  • 409 Conflict
  • The request could not be completed because of a conflict in the request
  • 410 Gone
  • The requested page is no longer available
  • 411 Length Required
  • The "Content-Length" is not defined. The server will not accept the request without it
  • 412 Precondition Failed
  • The precondition given in the request evaluated to false by the server
  • 413 Request Entity Too Large
  • The server will not accept the request, because the request entity is too large
  • 414 Request-URI Too Long
  • The server will not accept the request, because the URL is too long. Occurs when you convert a POST request to a GET request with a long query information
  • 415 Unsupported Media Type
  • The server will not accept the request, because the media type is not supported
  • 416 Requested Range Not Satisfiable
  • The client has asked for a portion of the file, but the server cannot supply that portion
  • 417 Expectation Failed
  • The server cannot meet the requirements of the Expect request-header field

Status 5XX

5XX:Server Error

  • 500 Internal Server Error
  • A generic error message, given when no more specific message is suitable
  • 501 Not Implemented
  • The server either does not recognize the request method, or it lacks the ability to fulfill the request
  • 502 Bad Gateway
  • The server was acting as a gateway or proxy and received an invalid response from the upstream server
  • 503 Service Unavailable
  • The server is currently unavailable (overloaded or down)
  • 504 Gateway Timeout
  • The server was acting as a gateway or proxy and did not receive a timely response from the upstream server
  • 505 HTTP Version Not Supported
  • The server does not support the HTTP protocol version used in the request
  • 511 Network Authentication Required
  • The client needs to authenticate to gain network access

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