⚡ Performance Optimization

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

They include techniques such as lazy loading of images and media, preloading and prefetching of critical assets, deferring and asynchronously loading scripts, minimizing and combining HTML, CSS, and JavaScript, and using connection hints like DNS prefetch and preconnect to reduce latency.

These approaches help website owners achieve faster page load times, lower bandwidth consumption, improved search engine visibility, better user engagement, and higher conversion rates.

According to our data, performance optimization technologies are used on 56.8% of all websites.
32.1% of these sites use only one performance optimization technology, 29.5% use two, and 38.4% use three or more at the same time.

Statistics based on 3.5M+ analyzed websites. About this data

We have a separate category for caching technologies.

⭐ Most Popular in 2026

The following chart shows the leading performance optimization technologies on the web in 2026, based on market share.

The most popular is ⏳ Lazy loading with an impressive share of 56%, followed by DNS Prefetch with 53% and Preconnect with 40.1%.

⏳ Lazy loading 56%
DNS Prefetch 53%
Preconnect 40.1%
Preload 35%
Speculation Rules 26.6%
Lazysizes 4.9%
Prefetch 2.2%
Autoptimize 2.2%
Rocket Loader 2%
WP Fastest Cache 1.9%
WP-Optimize 1%
PageSpeed 0.8%
jQuery LazyLoad 0.8%
Instant.Page 0.5%
Perfmatters 0.5%

You can also drill down by country:

🚀 Country Highlights

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

DNS Prefetch is #1 in the United Kingdom ^(-1)
Preconnect is #1 in Thailand ^(-2)
Preload is #1 in Indonesia ^(-3)
Speculation Rules is #3 in Uganda ^(-2)
Prefetch is #5 in Vietnam ^(-2)
jQuery LazyLoad is #5 in China ^(-8)
WP Fastest Cache is #6 in the Czech Republic ^(-4)
PageSpeed is #6 in Ukraine ^(-6)
Autoptimize is #7 in the United States ^(-1)
WP-Optimize is #7 in South Africa ^(-4)

✨ Best Performance Optimization Technologies

Below is a more detailed list of the top 25 of the 34 performance optimization technologies we track, ranked by their market share.

Rank	Name	Market share
1	⏳ Lazy loading Cambridge, Massachusetts, United States A technique to load non-critical images and iframes marked with the loading="lazy" attribute only when needed.	56%
2	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements instructs web browsers to resolve domain names for external resources before those resources are requested.	53%
3	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements instructs browsers to establish early connections to external origins before resources are requested.	40.1%
4	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements instructs web browsers to fetch important resources early before they are requested during page rendering.	35%
5	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	26.6%
6	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	4.9%
7	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements tells the browser to download resources that are likely to be needed for future navigation when the current page is idle.	2.2%
8	Autoptimize Lokeren, Belgium A WordPress plugin that aggregates, minifies and caches scripts and styles, and defers CSS and scripts. FreeOpen source$12.99/month	2.2%
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%
10	WP Fastest Cache Ankara, Turkey A caching plugin that speeds up WordPress sites and improves the PageSpeed Insights score. FreeOpen source$49	1.9%
11	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	1%
12	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.	0.8%
13	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	0.8%
14	Instant.Page Pau, France Uses just-in-time preloading - it preloads a page right before a user clicks on it. FreeOpen source	0.5%
15	Perfmatters Scottsdale, Arizona, United States A WordPress plugin designed for performance optimization. $29.95+/year	0.5%
16	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	0.4%
17	Hummingbird Melbourne, Australia A WordPress optimization plugin with built-in caching and CDN integration. FreeOpen source$15+/month	0.4%
18	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%
19	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	0.3%
20	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.3%
21	Lozad.js New Delhi, India Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies. FreeOpen source	0.3%
22	Prerender The rel="prerender" attribute on HTML elements.	0.2%
23	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.2%
24	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%
25	Beasties Edinburgh, United Kingdom A plugin that inlines your app's critical CSS and lazy-loads the rest. FreeOpen source	0.09%

👉 See Also

⚡Caching

🗃️ 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 3,511,995 websites.
We currently track the presence of 34 performance optimization technologies across the web.
Statistics were last calculated on May 14, 2026.
For more details, see our methodology and disclaimer.