Performance
What are WebP and AVIF?
WebP and AVIF are modern image formats offering better compression than JPEG and PNG.
WebP (Google) and AVIF (Alliance for Open Media) are next-generation image formats.
Comparison
- ●WebP: 25-35% smaller than JPEG
- ●AVIF: 50% smaller than JPEG
- ●Support: WebP 97%+, AVIF 90%+
SEO Impact
Using modern formats reduces page weight and improves LCP.
Related Terms
What are Core Web Vitals?
Core Web Vitals are 3 Google metrics measuring the speed, responsiveness, and visual stability of a web page.
What is CLS (Cumulative Layout Shift)?
CLS measures a page's visual stability. A poor CLS means elements move around during loading.
What is LCP (Largest Contentful Paint)?
LCP measures the loading time of the largest visible element on a page. Target: under 2.5 seconds.
What is Page Loading Speed?
Loading speed measures the time needed to fully display a web page. It's a Google ranking factor.
What is Lazy Loading?
Lazy loading is a technique that delays loading images and videos until they're visible on screen.
What is Google Lighthouse?
Lighthouse is a Google tool that audits a web page's performance, accessibility, SEO, and best practices.