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List of HTTP status codes
This article lists standard and notable non-standard HTTP response status codes. Standardized codes are defined by IETF as documented in Request for Comments (RFC) publications and maintained by the IANA. Other, non-standard values are used by various servers. The descriptive text after the numeric code – the reason phrase – is shown here with typical value, but in practice, can be different or omitted. Standard codesStatus codes defined by IETF are listed below.
URL redirectionURL redirection, also called URL forwarding, is a World Wide Web technique for making a web page available under more than one URL address. When a web browser attempts to open a URL that has been redirected, a page with a different URL is opened. Similarly, domain redirection or domain forwarding is when all pages in a URL domain are redirected to a different domain, as when wikipedia.com and wikipedia.net are automatically redirected to wikipedia.org.
HTTPApplication layer protocolHTTP (Hypertext Transfer Protocol) is an application layer protocol in the Internet protocol suite for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser.
Internet Information ServicesInternet Information Services (IIS) is an extensible web server created by Microsoft for use with the Windows NT family. IIS supports HTTP, HTTP/2, HTTP/3, HTTPS, FTP, FTPS, SMTP and NNTP. It has been an integral part of the Windows NT family since Windows NT 4.0, though it may be absent from some editions (e.g. Windows XP Home edition), and is not active by default. A dedicated suite of software called SEO Toolkit is included in the latest version of the manager.
Request for CommentsA Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF). An RFC is authored by individuals or groups of engineers and computer scientists in the form of a memorandum describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems.
Amazon Web ServicesOn-demand cloud computing providerAmazon Web Services, Inc. (AWS) is a subsidiary of Amazon that provides on-demandcloud computingplatforms and APIs to individuals, companies, and governments, on a metered, pay-as-you-go basis. Clients often use this in combination with autoscaling (a process that allows a client to use more computing in times of high application usage, and then scale down to reduce costs when there is less traffic).
Nginxnginx (pronounced "engine x" , stylized as NGINX) is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Russian developer Igor Sysoev and publicly released in 2004. nginx is free and open-source software, released under the terms of the 2-clause BSD license. A large fraction of web servers use nginx, often as a load balancer.
Apache HTTP ServerThe Apache HTTP Server is a free and open-source cross-platform web server, released under the terms of Apache License 2.0. It is developed and maintained by a community of developers under the auspices of the Apache Software Foundation. The vast majority of Apache HTTP Server instances run on a Linux distribution, but current versions also run on Microsoft Windows, OpenVMS, and a wide variety of Unix-like systems.
CloudflareCloudflare, Inc., is an American technology company headquartered in San Francisco, California, that provides a range of internet services, including content delivery network (CDN) services, cloud cybersecurity, DDoS mitigation, and ICANN-accredited domain registration. The company's services act primarily as a reverse proxy between website visitors and a customer's hosting provider, improving performance and protecting against malicious traffic.ArcGIS ServerArcGIS Server is the core server geographic information system (GIS) software made by Esri. ArcGIS Server is used for creating and managing GIS Web services, applications, and data. ArcGIS Server is typically deployed on-premises within the organization’s service-oriented architecture (SOA) or off-premises in a cloud computing environment.
Spring FrameworkThe Spring Framework is an application framework and inversion of controlcontainer for the Java platform. The framework's core features can be used by any Java application, but there are extensions for building web applications on top of the Jakarta EE platform. The framework does not impose any specific programming model. The framework has become popular in the Java community as an addition to the Enterprise JavaBeans (EJB) model.
ShopifyShopify Inc. is a Canadian multinational e-commerce company headquartered in Ottawa, Ontario that operates a cloud e-commerce management platform (CEMP) for retailpoint-of-sale systems. The company has over 5 million customers and processed US$292.3 billion in transactions in 2024, of which 57% was in the United States. Major customers include Tesla, LVMH, Nestlé, PepsiCo, AB InBev, Kraft Heinz, Lindt, Whole Foods Market, Red Bull, and Hyatt.CPanelcPanel is a web hosting control panel software developed by cPanel, L.L.C., a company based in the United States, and owned by WebPros. It provides a graphical user interface (GUI) and automation tools designed to simplify website and server management for end users. The software enables administration through a standard web browser and is commonly used alongside WebHost Manager (WHM), which allows server-level management.
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