⚡ Public CDN in Japan

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.

Japan is an East Asian country with a population of around 125 million people.

According to our research, public CDNs are used on 49.4% of websites from Japan.

Statistics based on 188K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Google Hosted Libraries with an impressive share of 50%, followed by Gstatic with 37% and Cdnjs with 31.2%.

Google Hosted Libraries 50%
Gstatic 37%
Cdnjs 31.2%
jsDelivr 25.9%
jQuery CDN 16%
BootstrapCDN 11.9%
Unpkg 6.4%
RawGit 0.3%
Ionic Framework CDN 0.3%
Microsoft Ajax CDN 0.3%
JSPM 0.02%
FlagCDN 0.02%
Statically 0.01%
Skypack 0.01%
esm.sh 0.009%

🚀 Highlights

Here is a list of the top public CDNs that are more popular in Japan than worldwide.
Differences between global and country rankings are shown in parentheses.

1. Google Hosted Libraries ^(-2)
5. jQuery CDN ^(-1)
8. RawGit ^(-3)
11. JSPM ^(-4)
13. Statically ^(-5)
14. Skypack ^(-3)
15. esm.sh ^(-1)
18. Githack ^(-1)
20. AI Studio CDN ^(-1)

✨ Best Public CDNs

Below is a more detailed list of 20 public CDNs used on sites from Japan, ranked by their market share.

Rank	Name	Market share
1	Google Hosted Libraries Mountain View, California, United States A public content delivery network operated by Google that serves popular open-source JavaScript libraries. Free	50%
2	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. Free	37%
3	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. Free	31.2%
4	jsDelivr Barnet, England, United Kingdom A free public content delivery network service for open-source software projects. Free	25.9%
5	jQuery CDN San Francisco, California, United States A content delivery network that hosts the jQuery library. Free	16%
6	BootstrapCDN Barnet, England, United Kingdom The recommended CDN for Bootstrap, Font Awesome, Bootswatch and Bootstrap Icons, backed by jsDelivr. Free	11.9%
7	Unpkg Carlsbad, California, United States A global content delivery network that serves files directly from public Npm packages. Free	6.4%
8	RawGit Portland, Oregon, United States A public CDN for serving files from raw.githubusercontent.com with the correct content types. FreeLegacy	0.3%
9	Ionic Framework CDN Madison, Wisconsin, United States A free, fast, and reliable CDN for Ionic framework. Free	0.3%
10	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. Free	0.3%
11	JSPM Victoria, British Columbia, Canada A Javascript CDN built to support import maps with maximum performance featuring. Free	0.02%
12	FlagCDN Prague, Czech Republic A free CDN service for images of flags of all countries and US states. Free	0.02%
13	Statically Yogyakarta, Indonesia A free CDN for developers that serves files from GitHub, GitLab, and Bitbucket. Free	0.01%
14	Skypack Delaware, United States A JavaScript delivery network for modern web apps. Free	0.01%
15	esm.sh A JavaScript content delivery network powered by Cloudflare that serves NPM packages as native ES modules for browsers and Deno without local installation or builds. FreeOpen source	0.009%
16	Staticfile CDN Shanghai, China A Chinese public content delivery network for open-source libraries. Free	0.005%
17	Yastatic Moscow, Russia A public CDN service provided by the Russian search engine Yandex. Free	0.004%
18	Githack Source code caching CDN with proper Content-Type headers backed by Cloudflare's global network. Free	0.004%
19	Baidu Libs Beijing, China A public CDN service provided by the Chinese search engine Baidu. Free	0.001%
20	AI Studio CDN Mountain View, California, United States A Google-hosted mirror of the open-source esm.sh JavaScript CDN. Free	0.001%

👉 See Also

🌎 Public CDN in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 188,187 websites from Japan.
We currently track the presence of 21 public CDNs across the web.
Of these, 20 were detected on websites from Japan.
Statistics were last calculated on August 29, 2026.
For more details, see our methodology and disclaimer.