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
1251 websites
Websites using LazySizes
Last 30 days uptimeⓘ
99.780%
60
Performance
83
Accessibility
89
Best Practices
90
SEO
LazySizes friendly technologies
Google Analytics
jQuery
Google Font API
Webpack
HSTS
Open Graph
core-js
PHP
MySQL
Google Tag Manager
Who Uses LazySizes?
Monthly Visits
1.8k
Top Country
United States
Page Load Time
3.46s
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
All
Brand affinity
Value-oriented
Political leaning
Not applicable
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
Bachelor's
Occupation
Professionals
Race & ethnicity
All
Brand affinity
Value-oriented
Political leaning
Not applicable
Tech savviness
Intermediate
Top LazySizes Alternatives
Quicklink
12 websites|12 uptime cardsQuicklink is a JavaScript library that automatically prefetches links in the viewport, speeding up subsequent page loads.
Lozad.js
63 websites|59 uptime cardsLozad.js is a lightweight JavaScript library for efficient lazy loading of images and other media, improving page load times.
Instant.Page
16 websites|16 uptime cardsInstant.Page is a lightweight JavaScript library that uses just-in-time preloading to make website navigation faster.
InstantClick
1 website|1 uptime cardInstantClick is a JavaScript library that preloads pages on hover, making website navigation feel instantaneous.
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.