Intersection Observer
What is Intersection Observer?
Intersection Observer belongs to JavaScript libraries and Performance categories.
Intersection Observer is a browser API that efficiently detects when an element enters or leaves the viewport, useful for implementing lazy loading and infinite scrolling.
Intersection Observer Performance Insights
2 websites
Websites using Intersection Observer
Last 30 days uptimeⓘ
100%
1.71s
Page Load
84
Performance
84
Accessibility
89
Best Practices
83
SEO
Intersection Observer friendly technologies
Google Analytics
jQuery
jsDelivr
Google Font API
Webpack
jQuery Migrate
Open Graph
Elementor
core-js
Module Federation
Top Intersection Observer Alternatives
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Lozad.js
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Instant.Page
21 websites|21 uptime cardsInstant.Page is a lightweight JavaScript library that uses just-in-time preloading to make website navigation faster.
LazySizes
1629 websites|1583 uptime cardsLazySizes 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 without any dependencies, making it an excellent choice for optimizing web performance.
InstantClick
18 websites|18 uptime cardsInstantClick is a JavaScript library that preloads pages on hover, making website navigation feel instantaneous.