
LazySizes
What is LazySizes?
LazySizes belongs to JavaScript libraries and Performance categories.
LazySizes is a lightweight, feature-rich JavaScript library used for lazy loading images, iframes, scripts, and other resources. It intelligently loads content only when it's about to enter the viewport, significantly improving page load times and reducing bandwidth usage. LazySizes is highly configurable and works...
LazySizes Performance Insights
246 websites
Websites using LazySizes
Last 30 days uptimeⓘ
99.923%
59
Performance
86
Accessibility
86
Best Practices
91
SEO
LazySizes friendly technologies
Google Analytics
jQuery
Webpack
Cart Functionality
Open Graph
HSTS
Google Font API
core-js
PHP
Google Tag Manager
Who Uses LazySizes?
Monthly Visits
40.3k
Top Country
United States
Page Load Time
3.60s
User Demographics
Competitive Advantage
LazySizes delivers faster loading speeds on budget hardware; vital for diverse, busy professionals accessing news.
User demographics for sites using LazySizes
Education level
Bachelor's
Occupation
Professionals
Race & ethnicity
Diverse
Brand affinity
Value-oriented
Political leaning
Moderate
Tech savviness
Intermediate
Top LazySizes Alternatives
Quicklink
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Lozad.js
13 websites|13 uptime cardsLozad.js is a lightweight JavaScript library for efficient lazy loading of images and other media, improving page load times.
InstantClick
2 websites|0 uptime cardsInstantClick is a JavaScript library that preloads pages on hover, making website navigation feel instantaneous.
Instant.Page
4 websites|4 uptime cardsInstant.Page is a lightweight JavaScript library that uses just-in-time preloading to make website navigation faster.

LazySizes unveilhooks plugin
4 websites|3 uptime cardsLazySizes unveilhooks is a plugin extending the LazySizes library to enable lazy loading for scripts, widgets, background images, and media elements.