Choosing a Public Frontend CDN for Projects in China: jsDelivr, unpkg, cdnjs, and Domestic Mirrors

cdnping · 2026-10-17

Public CDNs are convenient, but you don't control their availability. When choosing one for a project in China, weigh speed, stability, and "what if it suddenly stops working one day."

Main options

jsDelivr: Covers npm and GitHub with strong global performance; its availability in mainland China has fluctuated repeatedly in the past,fastly.jsdelivr.net and other backup domains also perform differently.
unpkg, cdnjs: Mostly overseas nodes; access from China depends on the quality of cross-border routes.
npmmirror, BootCDN, Staticfile, 360 frontend static asset libraries: Nodes inside China, usually faster for domestic users, but with narrower coverage and slower updates than jsDelivr.

Actual speed varies by carrier; refer to CDN speed rankingover the past 7 days, broken down by China Telecom, China Unicom, and China Mobile, as the reference.

Recommendations for production

Self-host critical assets.Files required for the first screen, such as frameworks and core styles, should be bundled into your own site or hosted on your own CDN.
pin the version number.Citation vue@3.4.21 rather than vue@3, to avoid cache misses and unexpected upgrades.
Add SRI.Add to external scripts: integrity attribute to prevent tampering.
Have a fallback ready.If the primary CDN fails to load, load again from a backup CDN or a local path:

<script src="https://cdn.jsdelivr.net/npm/vue@3.4.21/dist/vue.global.prod.js"></script>
<script>window.Vue || document.write('<script src="/vendor/vue.global.prod.js"><\/script>')</script>

When you need to accelerate your own business resources, a public CDN isn't the right fit. Take a look at cdnping Edge.

Try it yourself

Reading is good; testing it yourself is better.

View frontend CDN speed rankings →

Main options

Recommendations for production

Keep reading