Ensures all images have descriptive ALT attributes for accessibility and SEO.
The ALT attribute (or 'alt text') is a text description of an image within its `<img>` tag.
1. **Accessibility:** Screen readers read alt text aloud for visually impaired users. 2. **SEO:** It provides context to search engines, helping them understand the image and index it for image search. 3. **Broken Images:** If an image fails to load, the alt text is displayed instead.
Missing alt text harms accessibility and is a missed SEO opportunity. Search engines can't 'see' images, so alt text is crucial for context.
<!-- Good Example -->
<img src="puppy.jpg" alt="A golden retriever puppy playing with a red ball in the grass">
<!-- Bad Example (for a meaningful image) -->
<img src="puppy.jpg" alt="image">
<!-- OK for purely decorative images -->
<img src="decorative-line.png" alt="">Run a free audit to see how your site performs on Image ALT Attributes and 159 other checks.
Start Free AuditChecks for the presence, length, and content of the meta title tag.
Evaluates the meta description for its presence, length, and relevance.
Verifies the presence and uniqueness of the H1 heading tag.
Checks for the presence and structure of H2 heading tags.