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Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e The 404 or Not Found error message is a error definition chemistry Hypertext Transfer Protocol (HTTP) standard response code, in computer network communications, to indicate error definition physics that the client was able to communicate with a given server, but the server could not find what was requested.
Error Computer Definition
The web site hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the
Percent Error Definition
most recognizable errors encountered on the World Wide Web. Contents 1 Overview 2 Custom error pages 2.1 Tracking/Checking 404 errors 3 Phony 404 errors 4 404 substatus error codes defined by IIS 4.1 Slang usage 5 See also 6 References 7 External links Overview[edit] When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web experimental error definition page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. In the code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). The following two digits indicate the specific error encountered. HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP. At the HTTP level, a 404 response code is followed by a human-readable "reason phrase". The HTTP specification suggests the phrase "Not Found"[1] and many web servers by default issue an HTML page that includes both the 404 code and the "Not Found" phrase. A 404 error is often returned when pages have been moved or deleted. In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting; in the second case, a 410 Gone should be returned. Because these two options require special server configuration, most websites do not make use of them. 404 errors should not be confused with DNS errors, which appear whe
Consumer Technology Internet acronyms and lingo 404 (status code) Definition 404 (status code) Facebook Like Tweet Google +1 LinkedIn Email Comment RSS Print A
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AA AAA Part of the Internet acronyms and lingo glossary: Also see errors . 404 systematic error definition is a frequently-seen status code that tells a Web user that a requested page is "Not found." 404 and other status codes fundamental attribution error definition are part of the Web's Hypertext Transfer Protocol ( HTTP ), written in 1992 by the Web's inventor, Tim Berners-Lee. He took many of the status codes from the earlier Internet protocol for transferring files, the https://en.wikipedia.org/wiki/HTTP_404 File Transfer Protocol ( FTP .) What to Do If You Get a 404If the site no longer exists, there's nothing you can do. However, it only takes one mistyped character to result in a 404. See whether the ".htm" should be an ".html" or vice versa. If you're linking from a Web site, you can do a "View source" to make sure it wasn't miscoded. Whether or not it is, you may http://whatis.techtarget.com/definition/404-status-code want to send a note to the Webmaster so that the link can be fixed for the next users. How to Handle 404s If You Have a Web SiteHere are some things you can do: Use a Web site analysis tool such as Web Trends or Weblog to identify links that result in 404s, then fix the links. If you change the Uniform Resource Locator ( URL ) for a page on your site, retain the old URL as a redirect file, putting a message on it and inserting a META element with a REFRESH to change to the new URL in a specified number of seconds. You can create the page contents for a 404 status code page and substitute it for the 404 page that the browser usually provides. This will allow you to personalize the message and encourage the user to send a note to the Webmaster so that the situation can be fixed.
This was last updated in March 2011 Contributor(s): Havi Hoffman Posted by: Margaret Rouse Related Terms Definitions social media - Social media is the collective of online communications channels dedicated to community-based input, interaction and collaboration. This definition of social media explains what it is, how it works... (WhatIs.com) internet meme - An internet meme is a cultural phenomenon that7. SHIZZLE 8. IIGHT 9. FOOTY 50 More Top Terms... What does 404 mean? This could be the only web page dedicated to explaining the meaning of 404 (404 acronym/abbreviation/slang http://www.internetslang.com/404-meaning-definition.asp word). Ever wondered what 404 means? Or any of the other 9117 slang words, abbreviations and acronyms listed here at Internet Slang? Your resource for web acronyms, web abbreviations and netspeak. All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other 0 1 2 3 4 5 6 7 8 9 error definition What is 404? 404 is "Page not found error" or "Clueless" 404 Definition / 404 Means The definition of 404 is "Page not found error" or "Clueless" The Meaning of 404 404 means "Page not found error" or "Clueless" So now you know - 404 means "Page not found error" or "Clueless" - don't thank us. YW! What does 404 mean? 404 is an acronym, abbreviation or slang word that definition page error is explained above where the 404 definition is given. All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other 0 1 2 3 4 5 6 7 8 9 Other terms relating to 'page': · GPC Generic Pack of CigarettesGet/Post/Cookie (web pages) · JSP Java Server Pages · PHP Personal Home Page · SERP Search Engine Results Page Other terms relating to 'found': · FSF Free Software Foundation · GFF Grenade Free Foundation · MFC Mildly Fat ChickMicrosoft Foundation Classes · OMFUG Other Music Found UnderGround Other terms relating to 'error': · E&OE Errors and omissions excluded · EBCAK Error Between Chair And Keyboard · GLITCH Error, mistake · ID10T Computer error caused by user · OE Outlook ExpressOperator Error · TAE Trial And Error Other terms relating to 'clueless': · KPC Keep Parents Clueless · NEW Clueless Trending Now Top Ten most popular slang look ups today 1. FSB 2. LIL 3. CKI 4. MEH 5. STS 6. DUTCH 7. SHIZZLE 8. IIGHT 9. FOOTY 50 More Top Terms... Tell a friend about InternetSlang.com- Add an acronym- Sitemap- Random Slang © 2002-2016InternetSlang.com Popular Pages Home More Info Search Naviga