Some countries, such as China, blocks popular websites. As a result, if you travel to these countries, you will find it difficult to access sites such as Google, Twitter, Youtube etc. If you need to bypass Internet censorship, you might need to find some help such as using a proxy or using a VPN.
There’re some VPN services available for people to choose from. For using VPN in China, there’s a website called VPNDada.com that review VPNs for China and recommend the best VPNs to be used in China. I recommend this website if you want to use VPN in China.
Below are some links on this site that are helpful: