Image Optimization · AuditJet Glossary

AVIF

A next-generation image format based on the AV1 video codec that provides better compression than WebP and JPEG.

AVIF (AV1 Image File Format) typically achieves 50% smaller file sizes than JPEG at comparable quality. Browser support now includes all major browsers. AVIF encoding is more CPU-intensive than WebP but produces significantly smaller files, making it the preferred format for bandwidth-sensitive performance optimisation where LCP improvement is the goal.

Related terms

WebP

A modern image format developed by Google that provides superior compression and quality compared to JPEG and PNG.

LCP (Largest Contentful Paint)

The time from page navigation start until the largest image or text block visible in the viewport has finished rendering.

Frequently asked questions

What is AVIF?

A next-generation image format based on the AV1 video codec that provides better compression than WebP and JPEG.

How does AuditJet measure AVIF?

AuditJet runs automated Google Lighthouse audits that surface AVIF scores alongside actionable fix guidance. You can track AVIF trends across all your pages and receive alerts when the metric regresses.

Monitor AVIF continuously

AuditJet tracks Core Web Vitals on a schedule with revenue impact alerts — powered by Google Lighthouse and Google PageSpeed Insights.

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