Alternative text (alt text) is descriptive text added to images that helps search engines understand image content and provides accessibility for visually impaired users through screen readers.
Product Image Optimization
Alt text for product images should include relevant keywords while accurately describing the item for better search visibility.
Accessibility Compliance
Proper alt text ensures your site meets accessibility standards, which Google considers as a positive ranking factor.
Image Search Rankings
Descriptive alt text helps images appear in Google Image Search, driving additional traffic to product and content pages.
Crawling and Indexing Benefits
Alt text gives search engine crawlers context about images, helping them understand page content more completely.
User Experience Enhancement
When images fail to load, alt text displays instead, maintaining content comprehension and professional appearance.
Keyword Integration Strategy
Alt text provides natural opportunities to include target keywords without appearing spammy to search engines.
How long should alt text be for SEO purposes?
Alt text should be concise but descriptive, typically 125 characters or less to avoid truncation by screen readers.
Should I include keywords in every alt text?
Include keywords naturally when they accurately describe the image, but prioritize descriptive accuracy over keyword stuffing.
What happens if I don't add alt text to images?
Missing alt text creates accessibility issues and missed SEO opportunities, as search engines can't understand image context.
Do decorative images need alt text?
Decorative images should have empty alt attributes (alt="") to tell screen readers to skip them entirely.
Image Compression
Reducing image file sizes without significant quality loss to improve page load times. Image optimization is one of the highest-impact performance improvements, as images often account for the majority of page weight.
WebP Image Format
A modern image format developed by Google that provides superior compression compared to JPEG and PNG. WebP images are typically 25-35% smaller at equivalent quality, improving page load speeds and Core Web Vitals scores.
Related Glossary Terms
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