{"id":7901,"date":"2013-01-20T15:31:04","date_gmt":"2013-01-20T15:31:04","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/http-404\/"},"modified":"2013-01-20T15:32:07","modified_gmt":"2013-01-20T15:32:07","slug":"http-404","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/15377\/http-404","title":{"rendered":"HTTP 404"},"content":{"rendered":"<h2><span id=\"what_does_http_404_mean\">What Does HTTP 404 Mean?<\/span><\/h2>\n<p>HTTP 404 is a Hypertext Transfer Protocol (HTTP) standard error message response code that simply means &#8220;not found,&#8221; indicating that a Web server is unable to locate the resource requested by a client, usually a Web browser. This is often because of a dead or broken link that has not updated removed or transferred contents to point to the new location. The server then generates a 404 Not Found Web page, which is sent as a notification to the client for the user.<\/p>\n<h2><span id=\"techopedia_explains_http_404\">Techopedia Explains HTTP 404<\/span><\/h2>\n<p>The HTTP standard requires a server response to all requests, like a Web browser\u2019s request for a specific Web page. This response is in the form of a numeric code and a message indicating mandatory, optional or disallowed. The three-digit code that the server returns when it cannot find the requested resource is 404. The first digit indicates that there is a client error, like a mistyped URL, and the last two digits indicate the specific error encountered.<\/p>\n<p>When the error code is sent by the server as a response, it is accompanied by a human readable &#8220;reason phrase,&#8221; indicating the error type, which in this case is &#8220;Not Found.&#8221; Another error is 410, which means &#8220;Gone,&#8221; while 301 means &#8220;Moved Permanently.&#8221; Both require server configuration, so by default, the majority of websites simply use 404 in their place.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does HTTP 404 Mean? HTTP 404 is a Hypertext Transfer Protocol (HTTP) standard error message response code that simply means &#8220;not found,&#8221; indicating that a Web server is unable to locate the resource requested by a client, usually a Web browser. This is often because of a dead or broken link that has not [&hellip;]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[273,245],"class_list":["post-7901","definition","type-definition","status-publish","format-standard","hentry","definitioncat-devops","definitioncat-internet"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v23.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is HTTP 404? - Definition from Techopedia<\/title>\n<meta name=\"description\" content=\"This definition explains the meaning of HTTP 404 and why it matters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HTTP 404\" \/>\n<meta property=\"og:description\" content=\"This definition explains the meaning of HTTP 404 and why it matters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\" \/>\n<meta property=\"og:site_name\" content=\"Techopedia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techopedia\/\" \/>\n<meta property=\"article:modified_time\" content=\"2013-01-20T15:32:07+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techopedia\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\"},\"author\":{\"name\":\"Margaret Rouse\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\"},\"headline\":\"HTTP 404\",\"datePublished\":\"2013-01-20T15:31:04+00:00\",\"dateModified\":\"2013-01-20T15:32:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\"},\"wordCount\":225,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/15377\/http-404#respond\"]}],\"articleSection\":\"\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\",\"url\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\",\"name\":\"What is HTTP 404? - Definition from Techopedia\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/#website\"},\"datePublished\":\"2013-01-20T15:31:04+00:00\",\"dateModified\":\"2013-01-20T15:32:07+00:00\",\"description\":\"This definition explains the meaning of HTTP 404 and why it matters.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/15377\/http-404\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/15377\/http-404#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.techopedia.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"DevOps\",\"item\":\"https:\/\/www.techopedia.com\/topic\/324\/devops\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Term\",\"item\":\"https:\/\/www.techopedia.com\/definition\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"HTTP 404\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.techopedia.com\/#website\",\"url\":\"https:\/\/www.techopedia.com\/\",\"name\":\"Techopedia\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.techopedia.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.techopedia.com\/#organization\",\"name\":\"Techopedia\",\"url\":\"https:\/\/www.techopedia.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg\",\"contentUrl\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg\",\"width\":209,\"height\":37,\"caption\":\"Techopedia\"},\"image\":{\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/techopedia\/\",\"https:\/\/x.com\/techopedia\",\"https:\/\/www.linkedin.com\/company\/techopedia\/\",\"https:\/\/www.youtube.com\/c\/Techopedia\"],\"publishingPrinciples\":\"https:\/\/www.techopedia.com\/about\/editorial-policy\",\"ownershipFundingInfo\":\"https:\/\/www.techopedia.com\/about\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\",\"name\":\"Margaret Rouse\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg\",\"contentUrl\":\"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg\",\"caption\":\"Margaret Rouse\"},\"description\":\"Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret\u2019s idea of \u200b\u200ba fun day is to help IT and business professionals to learn to speak each other\u2019s highly specialized languages.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/margaretrouse\/\",\"https:\/\/x.com\/https:\/\/twitter.com\/@techdefinitions\"],\"knowsAbout\":[\"Technology expert\"],\"url\":\"https:\/\/www.techopedia.com\/contributors\/margaret-rouse\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"What is HTTP 404? - Definition from Techopedia","description":"This definition explains the meaning of HTTP 404 and why it matters.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.techopedia.com\/definition\/15377\/http-404","og_locale":"en_US","og_type":"article","og_title":"HTTP 404","og_description":"This definition explains the meaning of HTTP 404 and why it matters.","og_url":"https:\/\/www.techopedia.com\/definition\/15377\/http-404","og_site_name":"Techopedia","article_publisher":"https:\/\/www.facebook.com\/techopedia\/","article_modified_time":"2013-01-20T15:32:07+00:00","twitter_card":"summary_large_image","twitter_site":"@techopedia","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404#article","isPartOf":{"@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404"},"author":{"name":"Margaret Rouse","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5"},"headline":"HTTP 404","datePublished":"2013-01-20T15:31:04+00:00","dateModified":"2013-01-20T15:32:07+00:00","mainEntityOfPage":{"@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404"},"wordCount":225,"commentCount":0,"publisher":{"@id":"https:\/\/www.techopedia.com\/#organization"},"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.techopedia.com\/definition\/15377\/http-404#respond"]}],"articleSection":""},{"@type":"WebPage","@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404","url":"https:\/\/www.techopedia.com\/definition\/15377\/http-404","name":"What is HTTP 404? - Definition from Techopedia","isPartOf":{"@id":"https:\/\/www.techopedia.com\/#website"},"datePublished":"2013-01-20T15:31:04+00:00","dateModified":"2013-01-20T15:32:07+00:00","description":"This definition explains the meaning of HTTP 404 and why it matters.","breadcrumb":{"@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.techopedia.com\/definition\/15377\/http-404"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.techopedia.com\/definition\/15377\/http-404#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.techopedia.com\/"},{"@type":"ListItem","position":2,"name":"DevOps","item":"https:\/\/www.techopedia.com\/topic\/324\/devops"},{"@type":"ListItem","position":3,"name":"Term","item":"https:\/\/www.techopedia.com\/definition"},{"@type":"ListItem","position":4,"name":"HTTP 404"}]},{"@type":"WebSite","@id":"https:\/\/www.techopedia.com\/#website","url":"https:\/\/www.techopedia.com\/","name":"Techopedia","description":"","publisher":{"@id":"https:\/\/www.techopedia.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.techopedia.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.techopedia.com\/#organization","name":"Techopedia","url":"https:\/\/www.techopedia.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg","contentUrl":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/08\/techopedia-light.svg","width":209,"height":37,"caption":"Techopedia"},"image":{"@id":"https:\/\/www.techopedia.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/techopedia\/","https:\/\/x.com\/techopedia","https:\/\/www.linkedin.com\/company\/techopedia\/","https:\/\/www.youtube.com\/c\/Techopedia"],"publishingPrinciples":"https:\/\/www.techopedia.com\/about\/editorial-policy","ownershipFundingInfo":"https:\/\/www.techopedia.com\/about"},{"@type":"Person","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5","name":"Margaret Rouse","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.techopedia.com\/#\/schema\/person\/image\/","url":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg","contentUrl":"https:\/\/www.techopedia.com\/wp-content\/uploads\/2023\/02\/margaret-rouse-headshot.jpeg","caption":"Margaret Rouse"},"description":"Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret\u2019s idea of \u200b\u200ba fun day is to help IT and business professionals to learn to speak each other\u2019s highly specialized languages.","sameAs":["https:\/\/www.linkedin.com\/in\/margaretrouse\/","https:\/\/x.com\/https:\/\/twitter.com\/@techdefinitions"],"knowsAbout":["Technology expert"],"url":"https:\/\/www.techopedia.com\/contributors\/margaret-rouse"}]}},"_links":{"self":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition\/7901"}],"collection":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition"}],"about":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/types\/definition"}],"author":[{"embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/users\/7813"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/comments?post=7901"}],"version-history":[{"count":1,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition\/7901\/revisions"}],"predecessor-version":[{"id":293281,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definition\/7901\/revisions\/293281"}],"wp:attachment":[{"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/media?parent=7901"}],"wp:term":[{"taxonomy":"definitioncat","embeddable":true,"href":"https:\/\/www.techopedia.com\/wp-json\/wp\/v2\/definitioncat?post=7901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}