1 min read
Images affect SEO in two ways: they can slow a page down, and they can be a missed opportunity for extra visibility in image search and AI-generated answers.

The essentials
- Descriptive, specific alt text — not keyword-stuffed, just accurate
- Modern formats (WebP/AVIF) and proper compression to protect Core Web Vitals
- Descriptive filenames instead of generic ones like “IMG_2041.jpg”
- Lazy-loading for below-the-fold images
See the full technical SEO guide for the performance side. More in SEO Fundamentals.
Related Reading
Related in SEO Fundamentals:
- SEO Audits Step-by-Step
- Indexing Best Practices
- Canonical Tags Explained
- Schema Markup Complete Guide
- JavaScript SEO Guide
Supporting reading from related clusters:
- HTTPS SEO
- Building Topical Authority: A Practical Framework
- How to Run an AI Search Visibility Case Study
Cornerstone guide: SEO Audit