Image SEO.
20 focused checklist items, sorted by cited sources. Check off your progress, save tasks for later, or open an item for its example SOP and sources.
- Add structured data matching visible main content on key pages35 cited sources34 categories
- Audit robots.txt to ensure AI crawlers can access priority pages30 cited sources24 categories
- Write unique, descriptive alt text for all meaningful images15 cited sources14 categories
- Compress images to balance quality and page speed8 cited sources5 categories
- Implement responsive srcset with fallback formats for all images8 cited sources4 categories
- Declare image width and height or aspect-ratio in HTML7 cited sources5 categories
- Use descriptive, hyphenated file names for all images7 cited sources4 categories
- Add ImageObject structured data markup to relevant images3 cited sources1 category
- Create and submit an image sitemap for JavaScript or CDN-served images3 cited sources1 category
- Create and submit image sitemaps for complex or JS-loaded images3 cited sources1 category
- Use semantic HTML5 <figure> and <figcaption> for image captions3 cited sources1 category
- Avoid lazy-loading images critical to Largest Contentful Paint2 cited sources2 categories
- Lazy-load images below the fold except largest contentful paint image2 cited sources1 category
- Place images near relevant descriptive text on the page2 cited sources1 category
- Select modern image formats with fallbacks for compatibility2 cited sources1 category
- Check image crawlability and indexing in Google Search Console1 cited source1 category
- Ensure alt text matches image content and surrounding page context1 cited source1 category
- Leverage browser caching for images to speed repeat page views1 cited source1 category
- Minify and gzip compress SVG image files before deployment1 cited source1 category
- Review and optimize image SEO regularly during audits and updates1 cited source1 category
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