21YunBox's Knowledge Base For Technologies

21YunBox helps businesses bring their websites and tech stack to China by leveraging our China-side Edge and Build system. We optimize your website at the code and system architect levels to ensure it's fully compliant with Chinese Laws.


Founded in 2014, ButterCMS is an API-first headless CMS for rapidly building CMS-powered apps and websites in any programming language. Great for blogs, dynamic pages, and more.

Companies like Salesforce, Kaplan, and Indeed (among others) already trust ButterCMS with their content pipelines.

In 2022, Builtwith.com shows that ButterCMS has 500+ active websites worldwide.


ButterCMS uses global content delivery network (CDN) servers to ensure fast delivery to users across the globe, except for mainland China.

There are two main reasons ButterCMS does not work in China.

  1. ButterCMS is not compliant with China’s laws and regulations.

  2. ButterCMS does not have any servers or CDNs in China. Most websites built with ButterCMS’s headless CMS, either won’t open or are extremely slow in China, as the speed test below shows.

ButterCMS's headless CMS does not work out-of-the-box in China
ButterCMS's headless CMS does not work out-of-the-box in China

Curious to see if your website built with ButterCMS works in China? Contact us for a Free China Speed Test.


21YunBox provides ButterCMS users with a straightforward solution to make ButterCMS hosted content blazing fast and compliant in China.

Contact us today to learn how to make ButterCMS work in China.


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