⚡ Performance in Vietnam

Website performance can be improved through a variety of technologies that optimize resource loading, defer non-essential content, minify HTML, CSS, and JavaScript code, and delay script execution.

Vietnam is a Southeast Asian country with a population of over 99 million people.

According to our data, performance technologies are used on 63.2% of websites from Vietnam.

⭐ Most Popular in 2026

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

The most popular is DNS Prefetch with an impressive share of 59.1%, followed by ⏳ Lazy loading with 58.4% and Preconnect with 31.4%.

DNS Prefetch 59.1%
⏳ Lazy loading 58.4%
Preconnect 31.4%
Preload 28%
Prefetch 21.1%
Speculation Rules 18%
Lazysizes 4.8%
Rocket Loader 2.3%
jQuery LazyLoad 2.1%
Autoptimize 1.9%
WP Fastest Cache 1.5%
PageSpeed 0.9%
Instant.Page 0.7%
Perfmatters 0.6%
WP-Optimize 0.5%

🚀 Highlights

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

1. DNS Prefetch ^(-1)
5. Prefetch ^(-3)
8. Rocket Loader ^(-1)
9. jQuery LazyLoad ^(-4)
13. Instant.Page ^(-1)
14. Perfmatters ^(-1)
16. Vanilla LazyLoad ^(-2)
17. WebMarkupMin ^(-11)
18. Lozad.js ^(-3)
20. Prerender ^(-2)

✨ Best Performance Technologies

Below is a more detailed list of the top 25 of the 29 performance technologies used on sites from Vietnam, ranked by their market share.

Rank	Name	Market share
1	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	59.1%
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.	58.4%
3	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	31.4%
4	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	28%
5	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	21.1%
6	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	18%
7	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	4.8%
8	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	2.3%
9	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	2.1%
10	Autoptimize Lokeren, Belgium A WordPress plugin that aggregates, minifies and caches scripts and styles, and defers CSS and scripts. FreeOpen source$12.99/month	1.9%
11	WP Fastest Cache Ankara, Turkey A caching plugin that speeds up WordPress sites and improves the PageSpeed Insights score. FreeOpen source$49	1.5%
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.	0.9%
13	Instant.Page Pau, France Uses just-in-time preloading - it preloads a page right before a user clicks on it. FreeOpen source	0.7%
14	Perfmatters Scottsdale, Arizona, United States A WordPress plugin designed for performance optimization. $29.95+/year	0.6%
15	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	0.5%
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	0.4%
17	WebMarkupMin Moscow, Russia A .NET library, also available as ASP.NET and ASP.NET Core extensions, that improves web application performance by reducing the size of HTML, XML, JS, and CSS code. FreeOpen source	0.3%
18	Lozad.js New Delhi, India Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies. FreeOpen source	0.2%
19	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	0.2%
20	Prerender The rel="prerender" attribute on HTML elements.	0.1%
21	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	0.1%
22	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%
23	Hummingbird Melbourne, Australia A WordPress optimization plugin with built-in caching and CDN integration. FreeOpen source$15+/month	0.1%
24	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.09%
25	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.08%

👉 See Also

🌎 Performance in other countries

Data is based on the analysis of 25,584 websites from Vietnam.
Statistics were last calculated on March 20, 2026.
For details, see our methodology and disclaimer.