⚡ Performance Optimization in Guernsey

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

Guernsey is a Western European island British Crown Dependency with a population of around 67 thousand people.

According to our data, performance optimization technologies are used on 58.8% of websites from Guernsey.

Statistics based on 211 analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Preconnect with a substantial share of 57.3%, followed by ⏳ Lazy loading with 36.3% and Speculation Rules with 31.5%.

Preconnect 57.3%
⏳ Lazy loading 36.3%
Speculation Rules 31.5%
DNS Prefetch 28.2%
Preload 15.3%
Prefetch 4%
Lazysizes 2.4%
Lozad.js 0.8%
NitroPack 0.8%
Rocket Loader 0.8%
Critters 0.8%

🚀 Highlights

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

1. Preconnect ^(-3)
6. Prefetch ^(-1)
8. Lozad.js ^(-12)
9. NitroPack ^(-7)
11. Critters ^(-12)

✨ Best Performance Optimization Technologies

Below is a more detailed list of 11 performance optimization technologies used on sites from Guernsey, ranked by their market share.

Rank	Name	Market share
1	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML <link> elements instructs browsers to establish early connections to external origins before resources are requested.	57.3%
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.	36.3%
3	Speculation Rules Mountain View, California, United States A browser API that improves navigation performance by prefetching or prerendering pages that users are likely to visit next.	31.5%
4	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML <link> elements instructs web browsers to resolve domain names for external resources before those resources are requested.	28.2%
5	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML <link> elements instructs web browsers to fetch important resources early before they are requested during page rendering.	15.3%
6	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML <link> elements tells the browser to download resources that are likely to be needed for future navigation when the current page is idle.	4%
7	Lazysizes Berlin, Germany A fast lazy loader library for images, iframes, and scripts/widgets. FreeOpen source	2.4%
8	Lozad.js New Delhi, India Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies. FreeOpen source	0.8%
9	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	0.8%
10	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%
11	Critters San Francisco, California, United States A deprecated Webpack plugin that inlines your app's critical CSS and lazily loads the rest. FreeOpen sourceLegacy	0.8%

🗃️ 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 211 websites from Guernsey.
We currently track the presence of 34 performance optimization technologies across the web.
Of these, 11 were detected on websites from Guernsey.
Statistics were last calculated on October 30, 2026.
For more details, see our methodology and disclaimer.