I have a question for the web application.

Hello, I have a question about the web app.

If you go into Naver Mobile, the search box and menu section are continuously m.It's naver.com (full page is m).(It's naver.com) If you swipe the news, entertainment, sports, and webtoons below, you'll see if they're all different HTML pages or keep refreshing. How can you do this? I wonder if it is done using Ajax or is there a different way? I wonder if you put several urls on the page in one HTML or if it's a different way.

I would be more grateful if you could tell me if there are any related examples or where I can see the examples.

Thank you.