⚡ Performance Optimization in China

Performance optimization technologies allow websites to load faster and respond more efficiently by improving how content and resources are handled and displayed to users.

China is an East Asian country with a population of around 1.4 billion people.

According to our data, performance optimization technologies are used on 19% of websites from China.

Statistics based on 83K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top performance optimization technologies on websites in China in 2026, based on market share.

The most popular is DNS Prefetch with an impressive share of 38.8%, followed by ⏳ Lazy loading with 31.9% and Preload with 27.1%.

DNS Prefetch 38.8%
⏳ Lazy loading 31.9%
Preload 27.1%
Preconnect 24.6%
jQuery LazyLoad 12.7%
Speculation Rules 11.3%
Lazysizes 5.5%
Prefetch 4.7%
Rocket Loader 2.4%
Lozad.js 1.5%
Autoptimize 1.3%
WP Fastest Cache 1%
Instant.Page 0.6%
NitroPack 0.3%
Perfmatters 0.3%

🚀 Highlights

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

1. DNS Prefetch ^(-1)
3. Preload ^(-1)
5. jQuery LazyLoad ^(-8)
10. Lozad.js ^(-11)
13. Instant.Page ^(-1)
14. NitroPack ^(-2)
16. Vanilla LazyLoad ^(-2)
19. Turbolinks ^(-1)
20. Performance Lab ^(-4)
21. Critters ^(-2)

✨ Best Performance Optimization Technologies

Below is a more detailed list of the top 25 of the 32 performance optimization technologies used on sites from China, ranked by their market share.

Rank	Name	Market share
1	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	38.8%
2	⏳ Lazy loading Cambridge, Massachusetts, United States A technique to load non-critical images and iframes marked with the loading="lazy" attribute only when needed.	31.9%
3	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	27.1%
4	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	24.6%
5	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	12.7%
6	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	11.3%
7	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	5.5%
8	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	4.7%
9	Rocket Loader San Francisco, California, United States CloudFlare Rocket Loader prioritizes website content by delaying loading of all JavaScript until after rendering. Free$25+/month	2.4%
10	Lozad.js New Delhi, India Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies. FreeOpen source	1.5%
11	Autoptimize Lokeren, Belgium A WordPress plugin that aggregates, minifies and caches scripts and styles, and defers CSS and scripts. FreeOpen source$12.99/month	1.3%
12	WP Fastest Cache Ankara, Turkey A caching plugin that speeds up WordPress sites and improves the PageSpeed Insights score. FreeOpen source$49	1%
13	Instant.Page Pau, France Uses just-in-time preloading - it preloads a page right before a user clicks on it. FreeOpen source	0.6%
14	NitroPack Sofia, Bulgaria A performance optimization solution for WordPress, WooCommerce, Magento, and OpenCart that offers caching, code, image, and font optimization, and a built-in CDN. $17.50+/month	0.3%
15	Perfmatters Scottsdale, Arizona, United States A WordPress plugin designed for performance optimization. $29.95+/year	0.3%
16	Vanilla LazyLoad A lightweight and flexible script that speeds up your web application by delaying the loading of your below-the-fold images, videos and iframes until they enter the viewport. FreeOpen source	0.3%
17	WP-Optimize Newport, Wales, United Kingdom An all-in-one WordPress plugin that cleans your database, compresses your images, and minifies and caches your website. FreeOpen source$49/year	0.3%
18	PageSpeed Mountain View, California, United States An open-source web server module for rewriting web pages to reduce latency and bandwidth, available for Apache and Nginx.	0.2%
19	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.2%
20	Performance Lab San Francisco, California, United States A WordPress plugin that allows you to test new performance features introduced by the official WordPress Performance Team. FreeOpen source	0.1%
21	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.06%
22	Turbo Chicago, Illinois, United States A lightweight JavaScript library that provides the speed and feel of a single-page application without requiring developers to write any JavaScript. FreeOpen source	0.06%
23	Quicklink Mountain View, California, United States Faster subsequent page-loads by prefetching or prerendering in-viewport links during idle time. FreeOpen source	0.05%
24	Hummingbird Melbourne, Australia A WordPress optimization plugin with built-in caching and CDN integration. FreeOpen source$15+/month	0.05%
25	Prerender The rel="prerender" attribute on HTML elements.	0.04%

👉 See Also

🌎 Performance Optimization 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 83,408 websites from China.
We currently track the presence of 34 performance optimization technologies across the web.
Of these, 32 were detected on websites from China.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.