Web Performance
Images are often the heaviest resources on a webpage. Learn how to optimize them to improve your Core Web Vitals, specifically Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS). These guides cover advanced techniques like lazy loading, responsive images (`srcset`), and content delivery networks (CDNs).
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Best Image Format for Website Speed (2026 Guide)
Your complete guide to choosing the fastest image formats in 2026. Learn why WebP is the new standard and how to optimize for Core Web Vitals.
How Image Compression Improves Core Web Vitals (With Examples)
Core Web Vitals influence search rankings through Page Experience signals. Learn how compressing your images can drastically improve LCP, reduce CLS, and boost mobile performance.
Lazy Loading Images for SEO: The Ultimate Guide
Lazy loading can speed up your site by 50%, but doing it wrong can kill your rankings. Learn the right way to implement it.
Best Image Size for Mobile: A Complete Guide
Are your images killing your mobile speed? Learn how to size images correctly for iPhone and Android devices using srcsets.
CLS Issues Caused by Images: How to Fix Layout Shifts
Images are the #1 cause of Cumulative Layout Shift (CLS). Learn how to reserve space using CSS aspect-ratio and width/height attributes.
Best Image Format for Mobile Performance (2026 Optimization)
Mobile users have limited battery and data. Learn why AVIF is the new king of mobile speed and how to use srcset to serve it.
WebP vs AVIF: Which is Best for Core Web Vitals in 2026?
The definitive battle of the next-gen formats. We benchmark WebP vs AVIF to see which one delivers the best LCP scores and user experience.