{"id":8016,"date":"2025-05-15T10:00:20","date_gmt":"2025-05-15T04:30:20","guid":{"rendered":"https:\/\/www.notiontechnologies.com\/blog\/?p=8016"},"modified":"2025-06-19T15:04:37","modified_gmt":"2025-06-19T09:34:37","slug":"complete-guide-to-http-status-codes","status":"publish","type":"post","link":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/","title":{"rendered":"Complete Guide to HTTP Status Codes"},"content":{"rendered":"\n

Introduction to HTTP Status Codes<\/strong> – When you visit a website, your browser sends a request to the server. The server responds with an HTTP status code<\/strong>. These codes tell you if your request was successful or if there was an error.<\/p>\n\n\n\n

Understanding HTTP status codes<\/strong> helps developers and website owners troubleshoot issues. This guide explains all the important codes in simple terms.<\/p>\n\n\n\n

How HTTP Status Codes Work<\/h2>\n\n\n\n

HTTP status codes are 3-digit numbers. They are grouped into five categories:<\/p>\n\n\n\n

    \n
  1. 1xx (Informational)<\/strong> \u2013 The request is being processed.<\/li>\n\n\n\n
  2. 2xx (Success)<\/strong> \u2013 The request was successful.<\/li>\n\n\n\n
  3. 3xx (Redirection)<\/strong> \u2013 The request needs further action.<\/li>\n\n\n\n
  4. 4xx (Client Errors)<\/strong> \u2013 The request has an issue.<\/li>\n\n\n\n
  5. 5xx (Server Errors)<\/strong> \u2013 The server failed to complete the request.<\/li>\n<\/ol>\n\n\n\n

    Let\u2019s explore each category in detail.<\/p>\n\n\n\n

    1xx \u2013 Informational Status Codes<\/h2>\n\n\n\n

    These codes show that the server is still processing the request.<\/p>\n\n\n\n

      \n
    • 100 Continue<\/strong> \u2013 The server has received the request headers.<\/li>\n\n\n\n
    • 101 Switching Protocols<\/strong> \u2013 The server agrees to switch protocols (e.g., from HTTP to WebSocket).<\/li>\n\n\n\n
    • 102 Processing<\/strong> \u2013 The server is working on the request but hasn\u2019t finished yet.<\/li>\n<\/ul>\n\n\n\n

      These codes are rare for most users.<\/p>\n\n\n\n

      2xx \u2013 Success Status Codes<\/h2>\n\n\n\n

      These mean the request was successful.<\/p>\n\n\n\n

        \n
      • 200 OK<\/strong> \u2013 The request worked perfectly. This is the most common success code.<\/li>\n\n\n\n
      • 201 Created<\/strong> \u2013 A new resource was successfully created (e.g., after a form submission).<\/li>\n\n\n\n
      • 202 Accepted<\/strong> \u2013 The request was accepted but not yet processed.<\/li>\n\n\n\n
      • 204 No Content<\/strong> \u2013 The request succeeded, but there\u2019s no content to return.<\/li>\n<\/ul>\n\n\n\n

        A 200 status code<\/strong> is what every website aims for.<\/p>\n\n\n\n

        3xx \u2013 Redirection Status Codes<\/h2>\n\n\n\n

        These codes mean the request must be redirected.<\/p>\n\n\n\n

          \n
        • 301 Moved Permanently<\/strong> \u2013 The page has moved to a new URL permanently.<\/li>\n\n\n\n
        • 302 Found (Temporary Redirect)<\/strong> \u2013 The page has moved temporarily.<\/li>\n\n\n\n
        • 304 Not Modified<\/strong> \u2013 The cached version of the page is still valid.<\/li>\n<\/ul>\n\n\n\n

          301 redirects<\/strong> are crucial for SEO when changing page URLs.<\/p>\n\n\n\n

          4xx \u2013 Client Error Status Codes<\/h2>\n\n\n\n

          These errors occur due to client-side issues.<\/p>\n\n\n\n

            \n
          • 400 Bad Request<\/strong> \u2013 The server couldn\u2019t understand the request.<\/li>\n\n\n\n
          • 401 Unauthorized<\/strong> \u2013 Login is required to access the resource.<\/li>\n\n\n\n
          • 403 Forbidden<\/strong> \u2013 The server refuses to respond (even if logged in).<\/li>\n\n\n\n
          • 404 Not Found<\/strong> \u2013 The requested page doesn\u2019t exist.<\/li>\n\n\n\n
          • 429 Too Many Requests<\/strong> \u2013 The user sent too many requests in a short time.<\/li>\n<\/ul>\n\n\n\n

            A 404 error<\/strong> is common when a page is deleted or the URL is mistyped.<\/p>\n\n\n\n

            5xx \u2013 Server Error Status Codes<\/h2>\n\n\n\n

            These mean the server failed to complete the request.<\/p>\n\n\n\n

              \n
            • 500 Internal Server Error<\/strong> \u2013 A generic server failure.<\/li>\n\n\n\n
            • 502 Bad Gateway<\/strong> \u2013 The server got an invalid response from another server.<\/li>\n\n\n\n
            • 503 Service Unavailable<\/strong> \u2013 The server is down for maintenance or overloaded.<\/li>\n\n\n\n
            • 504 Gateway Timeout<\/strong> \u2013 The server didn\u2019t get a response in time.<\/li>\n<\/ul>\n\n\n\n

              A 503 status code<\/strong> often appears during website maintenance.<\/p>\n\n\n\n

              How to Fix Common HTTP Status Code Errors<\/h2>\n\n\n\n

              Fixing 4xx Errors<\/h3>\n\n\n\n
                \n
              • 404 Not Found:<\/strong> Check for broken links and set up redirects.<\/li>\n\n\n\n
              • 403 Forbidden:<\/strong> Verify file permissions on the server.<\/li>\n\n\n\n
              • 400 Bad Request:<\/strong> Ensure the request format is correct.<\/li>\n<\/ul>\n\n\n\n

                Fixing 5xx Errors<\/h3>\n\n\n\n
                  \n
                • 500 Internal Server Error:<\/strong> Check server logs for details.<\/li>\n\n\n\n
                • 502 Bad Gateway:<\/strong> Restart the server or check proxy settings.<\/li>\n\n\n\n
                • 503 Service Unavailable:<\/strong> Wait until maintenance is over or increase server capacity.<\/li>\n<\/ul>\n\n\n\n

                  Why HTTP Status Codes Matter for SEO<\/h2>\n\n\n\n

                  Search engines like Google use HTTP status codes<\/strong> to crawl and index websites.<\/p>\n\n\n\n

                    \n
                  • 301 redirects<\/strong> pass SEO value to the new URL.<\/li>\n\n\n\n
                  • 404 errors<\/strong> can hurt rankings if not fixed.<\/li>\n\n\n\n
                  • 5xx errors<\/strong> may cause Google to temporarily stop crawling your site.<\/li>\n<\/ul>\n\n\n\n

                    Fixing these errors improves user experience and SEO performance.<\/p>\n\n\n\n

                    Conclusion<\/h2>\n\n\n\n

                    HTTP status codes are essential for website health. They help diagnose issues and improve performance.<\/p>\n\n\n\n

                    Use this complete guide to HTTP status codes<\/strong> to troubleshoot errors and optimize your site. Bookmark it for quick reference!<\/p>\n\n\n\n

                    By understanding these codes, you can keep your website running smoothly and ensure a better experience for users and search engines.<\/p>\n\n\n\n

                    This guide provides accurate and easy-to-understand information on HTTP status codes<\/strong>. Follow best practices to maintain a healthy website.<\/p>\n","protected":false},"excerpt":{"rendered":"

                    Introduction to HTTP Status Codes – When you visit a website, your browser sends a request to the server. The server responds with an HTTP status code. These codes tell…<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-8016","post","type-post","status-publish","format-standard","hentry","category-resources"],"yoast_head":"\nComplete Guide to HTTP Status Codes<\/title>\n<meta name=\"description\" content=\"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.\" \/>\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.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Complete Guide to HTTP Status Codes\" \/>\n<meta property=\"og:description\" content=\"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NotionTechnologies\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-15T04:30:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-19T09:34:37+00:00\" \/>\n<meta name=\"author\" content=\"Caroline Murphy\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Complete Guide to HTTP Status Codes\" \/>\n<meta name=\"twitter:description\" content=\"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.\" \/>\n<meta name=\"twitter:creator\" content=\"@notiontech\" \/>\n<meta name=\"twitter:site\" content=\"@notiontech\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Caroline Murphy\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Complete Guide to HTTP Status Codes","description":"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.","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.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/","og_locale":"en_US","og_type":"article","og_title":"Complete Guide to HTTP Status Codes","og_description":"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.","og_url":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/","article_publisher":"https:\/\/www.facebook.com\/NotionTechnologies","article_published_time":"2025-05-15T04:30:20+00:00","article_modified_time":"2025-06-19T09:34:37+00:00","author":"Caroline Murphy","twitter_card":"summary_large_image","twitter_title":"Complete Guide to HTTP Status Codes","twitter_description":"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.","twitter_creator":"@notiontech","twitter_site":"@notiontech","twitter_misc":{"Written by":"Caroline Murphy","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/#article","isPartOf":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/"},"author":{"name":"Caroline Murphy","@id":"https:\/\/www.notiontechnologies.com\/blog\/#\/schema\/person\/e3e03eb273f61161a2d803ecf8d50be7"},"headline":"Complete Guide to HTTP Status Codes","datePublished":"2025-05-15T04:30:20+00:00","dateModified":"2025-06-19T09:34:37+00:00","mainEntityOfPage":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/"},"wordCount":637,"publisher":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/#organization"},"articleSection":["Resources"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/","url":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/","name":"Complete Guide to HTTP Status Codes","isPartOf":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/#website"},"datePublished":"2025-05-15T04:30:20+00:00","dateModified":"2025-06-19T09:34:37+00:00","description":"Learn everything about HTTP status codes in this complete guide. Understand their meanings, types, and how to fix common errors.","breadcrumb":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.notiontechnologies.com\/blog\/complete-guide-to-http-status-codes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.notiontechnologies.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Complete Guide to HTTP Status Codes"}]},{"@type":"WebSite","@id":"https:\/\/www.notiontechnologies.com\/blog\/#website","url":"https:\/\/www.notiontechnologies.com\/blog\/","name":"notiontechnologies.com","description":"","publisher":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.notiontechnologies.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.notiontechnologies.com\/blog\/#organization","name":"Notion Technologies","url":"https:\/\/www.notiontechnologies.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.notiontechnologies.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.notiontechnologies.com\/blog\/wp-content\/uploads\/2023\/05\/notion-technologies.png","contentUrl":"https:\/\/www.notiontechnologies.com\/blog\/wp-content\/uploads\/2023\/05\/notion-technologies.png","width":336,"height":156,"caption":"Notion Technologies"},"image":{"@id":"https:\/\/www.notiontechnologies.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/NotionTechnologies","https:\/\/x.com\/notiontech","https:\/\/www.linkedin.com\/company\/notiontechnologies","https:\/\/twitter.com\/notiontech"]},{"@type":"Person","@id":"https:\/\/www.notiontechnologies.com\/blog\/#\/schema\/person\/e3e03eb273f61161a2d803ecf8d50be7","name":"Caroline Murphy","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.notiontechnologies.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/ce57f0ceee12fcdf8b2015d2d3b9e4c2?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ce57f0ceee12fcdf8b2015d2d3b9e4c2?s=96&d=mm&r=g","caption":"Caroline Murphy"},"description":"Staff Writer. Frequently covers tech, business psychology, social media, startups and digital marketing.","sameAs":["https:\/\/www.notiontechnologies.com"],"url":"https:\/\/www.notiontechnologies.com\/blog\/author\/caroline-murphy\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/posts\/8016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/comments?post=8016"}],"version-history":[{"count":3,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/posts\/8016\/revisions"}],"predecessor-version":[{"id":8020,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/posts\/8016\/revisions\/8020"}],"wp:attachment":[{"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/media?parent=8016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/categories?post=8016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.notiontechnologies.com\/blog\/wp-json\/wp\/v2\/tags?post=8016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}