⚡ Performance in Slovakia

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.

Slovakia is a Central European country with a population of around 5.4 million people.

According to our data, performance technologies are used on 53.3% of websites from Slovakia.

⭐ Most Popular in 2026

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

The most popular is ⏳ Lazy loading with an impressive share of 55.2%, followed by DNS Prefetch with 49.2% and Preload with 39.3%.

⏳ Lazy loading 55.2%
DNS Prefetch 49.2%
Preload 39.3%
Preconnect 39%
Speculation Rules 16.1%
Lazysizes 3.7%
WP Fastest Cache 3.1%
Prefetch 2.6%
Autoptimize 1.9%
jQuery LazyLoad 1.3%
WP-Optimize 1.1%
Rocket Loader 0.8%
Turbo 0.7%
PageSpeed 0.6%
Vanilla LazyLoad 0.5%

🚀 Highlights

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

3. Preload ^(-1)
7. WP Fastest Cache ^(-3)
10. jQuery LazyLoad ^(-3)
13. Turbo ^(-7)
15. Vanilla LazyLoad ^(-3)
16. Turbolinks ^(-3)
17. Lozad.js ^(-4)
20. Prerender ^(-2)
21. Critters ^(-2)
23. Beasties ^(-2)

✨ Best Performance Technologies

Below is a more detailed list of the top 25 of the 27 performance technologies used on sites from Slovakia, 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.	55.2%
2	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	49.2%
3	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	39.3%
4	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	39%
5	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	16.1%
6	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	3.7%
7	WP Fastest Cache Ankara, Turkey A caching plugin that speeds up WordPress sites and improves the PageSpeed Insights score. FreeOpen source$49	3.1%
8	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	2.6%
9	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%
10	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	1.3%
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	1.1%
12	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	0.8%
13	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	0.7%
14	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.	0.6%
15	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	0.5%
16	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.4%
17	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%
18	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%
19	Instant.Page Pau, France Uses just-in-time preloading - it preloads a page right before a user clicks on it. FreeOpen source	0.2%
20	Prerender The rel="prerender" attribute on HTML elements.	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	0.1%
22	Perfmatters Scottsdale, Arizona, United States A WordPress plugin designed for performance optimization. $29.95+/year	0.1%
23	Beasties Edinburgh, United Kingdom A plugin that inlines your app's critical CSS and lazy-loads the rest. FreeOpen source	0.1%
24	Hummingbird Melbourne, Australia A WordPress optimization plugin with built-in caching and CDN integration. FreeOpen source$15+/month	0.08%
25	Quicklink Mountain View, California, United States Faster subsequent page-loads by prefetching or prerendering in-viewport links during idle time. FreeOpen source	0.04%

👉 See Also

🌎 Performance in other countries

Data is based on the analysis of 9,650 websites from Slovakia.
Statistics were last calculated on March 20, 2026.
For details, see our methodology and disclaimer.