There are many programming languages used in website development, but some of the most popular ones include:

1. HTML: HyperText Markup Language is the standard markup language used to create web pages. It provides the structure and content of a web page.

2. CSS: Cascading Style Sheets is a style sheet language used for describing the presentation of a document written in HTML. It defines how HTML elements are to be displayed on the screen, paper, or in other media.

3. JavaScript: It's a scripting language used to create interactive web pages. JavaScript allows you to create dynamic and interactive user interfaces, and it can be used for client-side and server-side programming.

4. PHP: Hypertext Preprocessor is a server-side scripting language used to create dynamic web pages. It is commonly used in conjunction with a database system, like MySQL, to create web applications.

5. Python: It's a general-purpose programming language that is widely used for web development. It can be used for server-side scripting, data analysis, and machine learning.

6. Ruby: It's a programming language that is commonly used for web development. It is often used with the Ruby on Rails web application framework to create web applications quickly and efficiently.

There are many other programming languages used in web development, but these are some of the most popular ones. The choice of language will depend on the project requirements, developer preferences, and available resources.

There are many programming languages used in website development, but some of the most popular ones include:

1. HTML: HyperText Markup Language is the standard markup language used to create web pages. It provides the structure and content of a web page.

2. CSS: Cascading Style Sheets is a style sheet language used for describing the presentation of a document written in HTML. It defines how HTML elements are to be displayed on the screen, paper, or in other media.

3. JavaScript: It's a scripting language used to create interactive web pages. JavaScript allows you to create dynamic and interactive user interfaces, and it can be used for client-side and server-side programming.

4. PHP: Hypertext Preprocessor is a server-side scripting language used to create dynamic web pages. It is commonly used in conjunction with a database system, like MySQL, to create web applications.

5. Python: It's a general-purpose programming language that is widely used for web development. It can be used for server-side scripting, data analysis, and machine learning.

6. Ruby: It's a programming language that is commonly used for web development. It is often used with the Ruby on Rails web application framework to create web applications quickly and efficiently.

There are many other programming languages used in web development, but these are some of the most popular ones. The choice of language will depend on the project requirements, developer preferences, and available resources.