Can't download Tiktok

I don’t understand how to download videos from tiktok. Everyone does it somehow, but I don’t understand how. Can you please help me?

This is very easy to do. There is a very convenient website where you can download videos. You copy the link to the video, paste it and download it. The video loads quickly and without a stinker. Everything is fast and high quality. The site is used for a long time. Link