Use when optimizing images for SEO. Covers alt text, descriptive filenames, modern formats (WebP/AVIF), lazy loading, responsive sizing (srcset), ImageObject schema.
Scanned 5/28/2026
Skills Directorynpx -y skills add fusengine/agents --skill seo-images --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: seo-images
description: Use when optimizing images for SEO. Covers alt text, descriptive filenames, modern formats (WebP/AVIF), lazy loading, responsive sizing (srcset), ImageObject schema.
user-invocable: false
related-skills: seo, seo-schema, seo-technical
---
# Image SEO
## Checks
- All `<img>` have descriptive `alt` (empty `alt=""` only for decorative)
- Filenames: kebab-case, descriptive (`red-running-shoes.webp` not `IMG_1234.jpg`)
- Formats: WebP/AVIF with JPG/PNG fallback
- Lazy loading: `loading="lazy"` on below-fold images
- Responsive: `srcset` + `sizes` for different viewports
- Dimensions: `width` + `height` set to prevent CLS
## File Optimization Targets
| Type | Format | Max size | Quality |
|------|--------|----------|---------|
| Hero | AVIF/WebP | 200 KB | 75-80 |
| Content | WebP | 100 KB | 75 |
| Thumbnail | WebP | 30 KB | 70 |
## References
- `skills/seo/02-onpage-seo/alt-text-images.md`
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