Go language (also called Golang) is an open source static type programming language, which is concise, efficient and concurrent. The following are some application scenarios suitable for Go language:

1. Back-end development: Go language is very popular in back-end development. Its efficient concurrency model and excellent performance make it an ideal choice for building high-performance Web applications and micro-services. The standard library of Go language provides abundant network and concurrent programming primitives, which enables developers to easily build scalable back-end systems.

2. Distributed systems and cloud computing: Go language supports the development of distributed systems and cloud computing applications through its lightweight goroutine and communication mechanism. It can effectively handle concurrent processes, which is very beneficial to build a distributed system based on micro-service architecture and handle large-scale data processing tasks.

3. Network programming: Go language provides a simple and powerful network programming library, which can be used to build various network applications, including servers, agents, web crawlers and so on. Its concurrency model and efficient network primitives make it have a good performance in the field of network programming.

4. Command-line tools: The static compilation feature of Go language makes it very simple to generate executable files, which makes it an ideal choice for writing command-line tools and system management scripts. The standard library of Go language provides a wealth of tools and functions, so that developers can easily handle files, directories, command line parameters and so on.

5. Blockchain development: Because of its high performance and concurrency, Go language is very popular in building blockchains and distributed applications. Many famous blockchain projects, such as Ethereum and Hyperledger Fabric, use Go as their main development language.

To sum up, Go language is suitable for many scenarios, especially for building high-performance, distributed and concurrent applications. Its simplicity and ease of use make Go an increasingly popular programming language, and many companies and developers are using it for various types of development.