The Great Firewall is a term for Internet censorship system of China. It is a part of Golden Shield project, which is also known as National Public Security Work Informational Project.
This firewall blocks apps, foreign websites, social media, VPNs, instant messages, emails, and other online resources deemed offensive or inappropriate by authorities.
China has built a Great firewall to keep track of every session created by devices across the country. It blackholes (anti-spam technique) websites via Border Gateway Protocol (BGP). BGP was designed to allow routers to work in an efficient way. It enables you to know the total number of resources that are available to use.
Here are reasons why Google, Facebook, Twitter, and YouTube:
You can use VPN that works in China to unblock websites. It is good that you use clients or apps for a specific platform like desktop, TV streaming, mobile, etc.
You just need to open VPN, choose a server location, and turn it on. Your device will pretend like you are surfing the Internet using the services available outside of China.
You can use ExpressVPN. It is one of the best VPNs for China that enables you to browse the Internet securely against scammers. This VPN also offers unlimited access to music, social media websites, video, and more. This VPN does not log IP addresses, browsing history, DNS queries, or traffic destination.
Yes, you can use VPNs in China. This country does not have any laws on utilizing virtual private networks. Therefore, anyone can use them without any hassle.