Web development is a fast-growing industry that is constantly being updated and improved. In 2021, there are many new technologies that will help you create more modern and functional websites. Let's consider some of them.

1. Progressive Web Apps (PWA)

PWA is a technology that allows you to create web applications that work like regular applications on mobile devices. They can work offline, have a quick launch, and can send notifications. PWA is a great way to improve user experience and increase user retention on the site.

2. Artificial Intelligence (AI)

Artificial intelligence is a technology that allows you to create websites that can analyze data and make decisions based on that data. For example, AI can be used to create personalized recommendations for users, analyze user behavior on the site, and optimize content for search engines.

3. Voice Search Optimization (VSO)

Voice Search Optimization is a technology that allows you to optimize your website for user voice queries. With the development of voice assistants such as Siri and Alexa, more and more users are using voice search to find information on the Internet. Voice search optimization can help increase website traffic and improve user experience.

4. Single Page Applications (SPA)

SPA is a technology that allows you to create websites that work without reloading the page. This allows you to create faster and more responsive websites that improve the user experience. SPA also allows you to create more complex interfaces and improve navigation on the site.

5. Motion UI

Motion UI is a technology that allows you to create animated elements on the site. Animation can be used to improve the user experience, draw attention to important elements on the site and improve navigation. Motion UI can also be used to create more interactive and memorable websites.

In conclusion, new web development technologies help create more modern and functional websites that improve user experience and increase user retention on the site. Using these technologies can help your website stand out from the competition and attract more target audience.