⚡ Public CDN

Public CDNs are content delivery networks that cache and serve commonly used web assets, such as open-source JavaScript libraries, fonts, and CSS frameworks, to the public at no cost.

By hosting static resources like jQuery, Bootstrap, or React, they reduce bandwidth costs for websites and accelerate page load times for end users through geographic proximity.

According to our research, public CDNs are used on 34.9% of all websites.
65.8% of these sites use only one public CDN, 20.2% use two, and 14% use three or more simultaneously.

⭐ Most Popular in 2026

The following chart shows the leading public CDNs in 2026, based on market share.

The most popular is Gstatic with a substantial share of 52.3%, followed by Cdnjs with 26.6% and Google Hosted Libraries with 22.6%.

🚀 Country Highlights

Here is a list of public CDNs that are especially popular in certain countries.
Differences between global and country rankings are shown in parentheses.

✨ Best Public CDNs

Below is a more detailed list of 19 public CDNs we track, ranked by their market share.

RankNameMarket share
1
Gstatic
Mountain View, California, United States

A content delivery network service owned by Google that hosts static web assets to reduce bandwidth usage and improve load performance.
2
Cdnjs
Brisbane, Australia

A free content delivery network for web development libraries that serves JavaScript, CSS and other static assets from Cloudflare's global edge network.
3
Google Hosted Libraries
Mountain View, California, United States

A public content delivery network operated by Google that serves popular open-source JavaScript libraries.
4
jsDelivr
Barnet, England, United Kingdom

A free public content delivery network service for open-source software projects.
5
BootstrapCDN
Barnet, England, United Kingdom

The recommended CDN for Bootstrap, Font Awesome, Bootswatch and Bootstrap Icons, backed by jsDelivr.
6
jQuery CDN
San Francisco, California, United States

A content delivery network that hosts the jQuery library.
7
Unpkg

A global content delivery network for everything on Npm.
8
Ionic Framework CDN
Madison, Wisconsin, United States

A free, fast, and reliable CDN for Ionic framework.
9
Microsoft Ajax CDN
Redmond, Washington, United States

The Microsoft Ajax content delivery network hosts popular JavaScript libraries such as jQuery, jQuery UI, and ASP.NET Ajax.
10
Yastatic
Moscow, Russia

A public CDN service provided by the Russian search engine Yandex.
11
RawGit

A public CDN for serving files from raw.githubusercontent.com with the correct content types.
12
Baidu Libs
Beijing, China

A public CDN service provided by the Chinese search engine Baidu.
13
FlagCDN
Prague, Czech Republic

A free CDN service for images of flags of all countries and US states.
14
Staticfile CDN

A Chinese public content delivery network for open source libraries.
15
JSPM

A Javascript CDN built to support import maps with maximum performance featuring.
16
Statically

A free CDN for developers that serves files from GitHub, GitLab, and Bitbucket.
17
Skypack

A JavaScript delivery network for modern web apps.
18
Githack

Source code caching CDN with proper Content-Type headers backed by Cloudflare's global network.
19
RTLCSS CDN
Jordan

A public CDN from RTLCSS.

👉 See Also

Data is based on the analysis of 3,244,356 websites.
Statistics were last calculated on .
For details, see our methodology and disclaimer.