Image SEO: The Practical Guide to Alt Text, Dimensions, and Next-Gen Formats
Image SEO is the practice of giving visual assets the right page context, descriptive alt text, crawlable URLs, and efficient modern file formats.
1. Write Alt Text for Accessibility and Context
Describe what matters in the image for users who cannot see it. Avoid keyword stuffing and maintain natural language.
2. Use Descriptive, Hyphenated File Names
Replace generic camera filenames with concise, hyphenated keywords that accurately reflect image content.
3. Serve Next-Gen Formats (WebP / AVIF)
Convert legacy JPG and PNG assets to WebP to reduce byte transfer and improve Core Web Vitals (LCP).