Fast Common Gateway Interface


Fast Common Gateway Interface (FastCGI) is a protocol for interfacing interactive programs with a web server. It is a variation of the Common Gateway Interface (CGI) that is designed to reduce the overhead associated with interfacing the web server and CGI programs, allowing a server to handle more web page requests at once. Essentially, it increases the speed and efficiency of web servers.


The phonetics for “Fast Common Gateway Interface” is as follows:Fast – /fæst/Common – /ˈkɒm.ən/Gateway – /ˈɡeɪt.weɪ/Interface – /ˈɪn.tər.feɪs/

Key Takeaways

  1. FastCGI is Performance Driven: FastCGI is designed to significantly reduce the overhead related to interfacing the web server and CGI programs, allowing a server to handle more web page requests at once.
  2. Persistent Process: Unlike traditional CGI, FastCGI does not create a new process for every request, making it more scalable and efficient for high-volume web servers. The processes it initiates can handle multiple requests over their lifetime.
  3. Language independence: FastCGI can support a wide range of programming languages, making it flexible and versatile for different applications. It is not tied to a specific programming language, hence can be utilized in multiple web development contexts.


Fast Common Gateway Interface (FastCGI) is a significant technology term owing to its crucial role in enhancing the performance of web servers. By creating a persistent connection between the server and the CGI interpreter, FastCGI eliminates the frequent starting and stopping of CGI programs, thereby increasing speed and efficiency. This process substantially reduces the overhead associated with the CGI model, allowing web servers to handle more web page requests concurrently. Moreover, FastCGI’s language independence makes it versatile and compatible with various programming languages. Hence, FastCGI’s contribution to server performance improvement, efficiency, and versatile compatibility makes it an important term in the technology sphere.


Fast Common Gateway Interface, often abbreviated as FastCGI, is a standard protocol that is used for interfacing interactive programs with a webserver. Its purpose is to facilitate the processing of certain types of scripts that run on web servers, to augment the server’s performance capacity. This is particularly relevant when processing scripts that require extensive computational resources or results from databases, where traditional CGI systems may fall short in terms of efficiency.This server extension is designed to provide high performance and to overcome the shortcomings of the Common Gateway Interface (CGI), an older protocol which creates a new process for each request. FastCGI keeps a pool of processes running to handle client requests, thereby removing the overhead of starting and terminating a process for every request. It’s also language-agnostic, meaning it can efficiently support programs written in different programming languages. This can ultimately result in improved page load speeds and a better experience for web users.


Fast Common Gateway Interface (FastCGI) is a protocol for interfacing interactive programs with a web server, which is designed to alleviate some performance issues of the traditional Common Gateway Interface (CGI). Here are three real-world examples:1. Web Hosting Services: Many web hosting services that support dynamic web pages use FastCGI. This is because it allows a web server to communicate directly with a FastCGI process which serves dynamic content, ensuring speed and efficiency. 2. Content Management Systems: Content Management Systems such as WordPress, Drupal and Joomla often use FastCGI. For example, with WordPress, FastCGI allows the site to handle heavy traffic and complex plugins without slowing down page load speeds or overall performance. 3. E-commerce Platforms: E-commerce platforms like Magento also use FastCGI to efficiently handle high volumes of customer traffic, display dynamic product listings and process transactions quickly. This helps in maintaining website performance even during peak traffic hours.

Frequently Asked Questions(FAQ)

Sure, I’d be glad to. Here is a Frequently Asked Questions (FAQs) section for the technology term: Fast Common Gateway Interface (FastCGI):Q: What is Fast Common Gateway Interface (FastCGI)?A: FastCGI is a protocol for interfacing interactive programs with a web server. It is a variation of the Common Gateway Interface (CGI), a very efficient and scalable way to run applications on a web server.Q: How does FastCGI work?A: FastCGI enables the server to load the program once and then remain in memory, rather than creating a new process for every request, thus enabling high performance and persistency.Q: How does FastCGI differ from CGI?A: Unlike traditional CGI, which creates a new process for each request, FastCGI uses persistent processes to handle series of requests. This leads to a significant performance boost.Q: What are the advantages of using FastCGI?A: FastCGI allows the server to handle more web page requests at once, reducing the load on the server. It also enables the use of various programming languages for web development. Q: Is FastCGI language-dependent?A: No, FastCGI is language-agnostic — it can be used with multiple programming languages including Python, PHP, Perl, Ruby, etc.Q: Can FastCGI run on any web server?A: Yes, FastCGI has been implemented on various servers including Apache, IIS, NGINX, and Lighttpd, among others.Q: Is FastCGI secure?A: Yes, as secure as any other CGI program. However, the security largely depends on the script or application that is being run by FastCGI. Q: Is FastCGI widely used today?A: Yes, FastCGI is extensively used due to its performance advantages over traditional CGI. It is adopted by many high-traffic websites to minimize server load.

Related Finance Terms

  • Server Interface
  • Script Execution
  • Process Management
  • Web Programming Language
  • HTTP Protocol

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