When people ask for WCAG alt text rules in WordPress, they usually want practical guidance, not legal language. The core rule is straightforward: informative images need meaningful text alternatives, and decorative images should not create noise for assistive users.
For the broader workflow, see WordPress Image Accessibility: Fix Missing Alt Text at Scale.
Rule 1: Describe Informative Images
If the image adds meaning, describe that meaning. This includes:
- product images
- screenshots
- charts
- diagrams
- icons used as controls or links
Rule 2: Leave Decorative Images Empty
Decorative images often work best with empty alt text, not vague text. The goal is to avoid making assistive technology announce meaningless decoration.
Rule 3: Do Not Stuff Keywords
Alt text should describe the image, not act as a keyword dump. Over-optimized strings reduce usability and quality.
Rule 4: Match the Page Context
Good alt text fits the page where the image appears. The same file may need different wording in different contexts.
Rule 5: Do Not Replace Judgment With One Template
Templates are useful for scale, but a template should not override obvious differences between image types.
WordPress-Specific Practical Rule
For WordPress, use a workflow that:
- preserves good existing alt text
- fills missing informative images first
- keeps decorative images intentionally empty
- reviews high-value pages manually
This is the practical path between accessibility and scale.
What This Means for Site-Wide Cleanup
A WCAG-aware workflow does not mean describing every image with maximum detail. It means classifying image purpose correctly and applying the right rule consistently across posts, pages, products, and media patterns.
That is why automation can help with volume, but judgment still controls quality.
FAQ
Does WCAG mean every image needs descriptive alt text?
No. Decorative images often need empty alt text.
Can WooCommerce product images be decorative?
Usually no. Product images are typically informative.
Can automation help with WCAG-related image cleanup?
Yes, but only when review logic and image purpose are respected.
Should empty alt text be treated as an error in every audit?
No. For decorative images, empty alt text may be the correct result.
What is the safest rule for large WordPress sites?
Classify images by purpose first, then apply automation only where that classification is reliable.
That is the most practical way to avoid both thin accessibility fixes and noisy over-automation.
It also keeps accessibility review tied to image purpose instead of checkbox behavior alone.
That is the practical standard large WordPress sites need.
