⚡ Performance in Iceland

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.

Iceland is a Northern European island country with a population of over 380 thousand people.

According to our data, performance technologies are used on 54.4% of websites from Iceland.

⭐ Most Popular in 2026

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

The most popular is ⏳ Lazy loading with an impressive share of 59.7%, followed by DNS Prefetch with 48.5% and Preload with 40.5%.

⏳ Lazy loading 59.7%
DNS Prefetch 48.5%
Preload 40.5%
Preconnect 37.3%
Speculation Rules 23.7%
Prefetch 3.9%
Lazysizes 3.1%
Rocket Loader 2.1%
WP Fastest Cache 1.2%
Hummingbird 1.1%
Autoptimize 0.9%
WP-Optimize 0.6%
PageSpeed 0.5%
NitroPack 0.4%
Vanilla LazyLoad 0.3%

🚀 Highlights

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

3. Preload ^(-1)
6. Prefetch ^(-2)
8. Rocket Loader ^(-1)
9. WP Fastest Cache ^(-1)
10. Hummingbird ^(-7)
14. NitroPack ^(-2)
15. Vanilla LazyLoad ^(-3)
17. WebMarkupMin ^(-11)
19. Turbo ^(-1)
20. Beasties ^(-5)

✨ Best Performance Technologies

Below is a more detailed list of the top 25 of the 25 performance technologies used on sites from Iceland, 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.	59.7%
2	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	48.5%
3	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	40.5%
4	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	37.3%
5	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	23.7%
6	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	3.9%
7	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	3.1%
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	2.1%
9	WP Fastest Cache Ankara, Turkey A caching plugin that speeds up WordPress sites and improves the PageSpeed Insights score. FreeOpen source$49	1.2%
10	Hummingbird Melbourne, Australia A WordPress optimization plugin with built-in caching and CDN integration. FreeOpen source$15+/month	1.1%
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	0.9%
12	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	0.6%
13	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.	0.5%
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	0.4%
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	0.3%
16	Instant.Page Pau, France Uses just-in-time preloading - it preloads a page right before a user clicks on it. FreeOpen source	0.3%
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	0.2%
18	Perfmatters Scottsdale, Arizona, United States A WordPress plugin designed for performance optimization. $29.95+/year	0.2%
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	0.2%
20	Beasties Edinburgh, United Kingdom A plugin that inlines your app's critical CSS and lazy-loads the rest. FreeOpen source	0.1%
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	0.1%
22	jQuery LazyLoad A deprecated jQuery lazy loading plugin. FreeOpen sourceLegacy	0.1%
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	0.07%
24	Turbolinks Chicago, Illinois, United States A JavaScript library that allows web apps to behave like a single page application. FreeOpen sourceLegacy	0.07%
25	Prerender The rel="prerender" attribute on HTML elements.	0.07%

Data is based on the analysis of 2,774 websites from Iceland.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.