Some of our customs have tested the platform with their China team locally and they were very happy with the results. HTTP Live Streaming (also known as HLS) videos were introduced in 2016, because of a client that was interested in delivering video content in China, and introducing HLS was one of the solutions to improve video time load performance in China. This feature is still in place and very successful.
Zapnito has moved to using Cloudflare as our main CDN provider to ensure that the serving of all static assets on the platform is up to the expected speed within mainland China. This was partly due to the fact that our previous provider, Amazon CloudFront, did not have CDN servers inside mainland China at the time.
If you have any other worries or questions about access to or functionality of the platform in Mainland China, don't hesitate to reach out to us at firstname.lastname@example.org.