165 words
1 min
Vercel Slow in Mainland China? Speed It Up with CF Worker Reverse Proxy + Preferred Nodes
Some networks in mainland China access Vercel projects very slowly. A practical workaround is Cloudflare Worker reverse proxy plus preferred nodes, with no ICP filing and near-zero cost.
2025-11-23
Vercel projects can be slow on some domestic networks, and sometimes Vercel routing itself is unstable. A practical fix is Cloudflare reverse proxy + preferred nodes.
Preparation:
- A Vercel project to proxy and its domain
- A Cloudflare account
Note: in the following, assume users access accelerated domain B.xxx.com, while Vercel is currently bound to A.xxx.com (non-accelerated).
Cloudflare reverse proxy
I already covered details here: Cloudflare Worker反向代理网站教程 - 潮思Chaosyn
Simplified steps:
- Fork or build your own reverse-proxy script: https://github.com/evepupil/any-proxy
- Replace target domain in the proxy code with your own site. For Vercel, bind
A.xxx.comin the Vercel project and proxy that domain.
- Create an application in Cloudflare and select your forked repo.
- Wait until deployment succeeds.
- Add an interception route in Worker settings so all
B.xxx.com/*traffic is routed through this Worker.
Cloudflare preferred nodes
Detailed guide is here: https://blog.chaosyn.com/posts/cloud-flare配置优选节点教程/
Simplified steps:
- Add a CNAME record in Cloudflare DNS and point it to any preferred node.
- Done. Traffic to
B.xxx.comnow benefits from preferred-node acceleration.
