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
1629 websites
Websites using LazySizes
Last 30 days uptimeⓘ
99.776%
3.25s
Page Load
61
Performance
83
Accessibility
88
Best Practices
91
SEO
LazySizes friendly technologies
jQuery
Google Analytics
Google Font API
HSTS
Open Graph
Cart Functionality
core-js
PHP
MySQL
Google Tag Manager
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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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.