Image assets continue to represent a significant portion of web page transfer weight. Improving LCP and bandwidth efficiency relies on modern codec selection and edge cache topologies.

1. Codec Comparison

  • AVIF: Leverages AV1 intra-frame algorithms to reduce file sizes substantially while preserving visual fidelity.
  • WebP: Provides broad browser compatibility alongside lossy, lossless, and alpha transparency modes.

2. Edge Content Negotiation

Inspecting the Accept request header at the edge CDN allows serving optimized formats transparently without complicating authoring markup.