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
2049 websites
Websites using LazySizes
Last 30 days uptimeⓘ
99.847%
3.17s
Page Load
60
Performance
83
Accessibility
88
Best Practices
91
SEO
LazySizes friendly technologies
jQuery
Google Analytics
Google Font API
Cart Functionality
Priority Hints
Facebook Pixel
Open Graph
core-js
Google Tag Manager
PHP
Who Uses LazySizes?
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
All
Occupation
All
Race & ethnicity
All
Brand affinity
Value-oriented
Political leaning
All
Tech savviness
Intermediate
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
All
Occupation
All
Race & ethnicity
All
Brand affinity
Value-oriented
Political leaning
All
Tech savviness
Intermediate
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Lozad.js
73 websites|71 uptime cardsLozad.js is a lightweight JavaScript library for efficient lazy loading of images and other media, improving page load times.
Instant.Page
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InstantClick
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Intersection Observer
2 websites|2 uptime cardsIntersection Observer is a browser API that efficiently detects when an element enters or leaves the viewport, useful for implementing lazy loading and infinite scrolling.