SILO 3: On-Page Optimization with AI
On-Page AI Optimization

PrestaShop Image SEO: How to optimize your ALT tags with AI

Boost your Google Images traffic. Learn how to automate the generation of descriptive and optimized alternative texts (ALT) for SEO and accessibility.

Reading time : 8 min

Images are often the weak point of PrestaShop SEO. Google cannot "read" an image without help: it needs a relevant ALT Tag (Alternative Text).

Why optimize your ALT tags?

  1. Google Images Traffic: Many customers search visually first.
  2. Accessibility: Essential for the visually impaired using screen readers.
  3. Semantics (AEO): AIs use image descriptions to understand the actual appearance of your products.

The visual intelligence solution from Fexa AI

Rather than manually writing hundreds of tags, Fexa AI analyzes your visuals based on product characteristics (color, material, shape) to generate natural descriptions.

ALT optimization comparison:

  • Before: IMG_4523.jpg or (blank)
  • With Fexa AI: "Light blue long linen summer dress with fitted belt and V-neck"

How to automate the process?

In the Optimization Panel, check the "Image Alts" box. By clicking on "Generate", the AI instantly produces a keyword-rich tag that boosts your overall SEO score by 10 to 15%.

Review and approve your ALT tags (including in batch)

You stay in control of every tag. In batch optimization, the preview now shows the generated ALT tags image by image, alongside the rest of the sheet.

  • Review each ALT before publishing.
  • Uncheck a specific tag (or the whole ALT group) to exclude it from the apply step — useful if some images are already well described.
  • Only checked tags are written to your shop.

This is the same per-field control as for titles, descriptions and FAQ.


Next step: Generating a FAQ with Schema Markup

Pillar: PrestaShop SEO: The Complete Guide