Lexiik AI visually analyzes your product images using computer vision and automatically generates descriptive, SEO-optimized ALT tags. Maximize your visibility on Google Images, the 2nd largest source of e-commerce traffic.
Google Images = 23% of e-commerce traffic
Why ALT Tags Are Crucial
Google Can't "See" Your Images (Well, Almost)
Unlike humans, Google cannot simply "look" at an image and understand what it represents. It needs textual context to index and rank your visuals.
🤖 How Google Analyzes an Image
- 1. File name: "IMG_5842.jpg" ❌ vs "black-nike-pegasus-running-shoe.jpg" ✅
- 2. ALT tag: The textual description of the image (this is THE primary signal)
- 3. Surrounding text: The content around the image (product title, description)
- 4. Computer vision: Shape, color, and object analysis (recent technology, still imprecise)
Without an ALT tag, Google cannot properly index your images. Result: 0 visibility on Google Images, meaning 23% of traffic lost.
The 3 Benefits of ALT Tags
Image SEO
Google Images indexing, ranking on visual queries, additional traffic to your product pages.
Accessibility
Screen readers use ALT text for visually impaired users. Legally required (WCAG, ADA).
Graceful Degradation
If the image fails to load (slow connection, error), the ALT text is displayed as a replacement.
Warning
Anatomy of a Perfect ALT Tag
Common Mistakes
<img src="shoe.jpg" alt="">
💥 Google completely ignores the image. 0 chance of appearing in Google Images.
alt="image" | alt="photo" | alt="product"
💥 No SEO value. Impossible to rank on relevant queries.
alt="running shoe sport shoe nike shoe cheap running sneaker"
💥 Google penalty for over-optimization. Your site loses credibility.
alt="IMG_5842_final_v2.jpg"
💥 Not descriptive, useless for users and for Google.
Best Practices
Structure of an Optimal ALT Tag
Start with the generic name: "Running shoe", "Smartphone", "Sectional sofa"
Be specific: "Nike Air Zoom Pegasus 40", "iPhone 15 Pro Max", "IKEA Kivik"
Color, size, material: "black and white", "256 GB", "dark grey fabric"
If lifestyle photo: "worn by a runner in the forest", "in a modern living room setting"
| Situation | Optimal ALT Tag |
|---|---|
| Product photo on white background | Nike Air Zoom Pegasus 40 men's running shoe black and white side view |
| Lifestyle photo | Runner wearing black Nike Air Zoom Pegasus 40 during a morning jog in the forest |
| Detail zoom | Close-up of the React foam cushioning sole on the Nike Pegasus 40 |
| Multiple colors | Nike Air Zoom Pegasus 40 shoe available in 5 colors: black, white, blue, pink, green |
Good to know
How Lexiik AI Generates ALT Tags
Computer Vision Technology
Lexiik AI uses a convolutional neural network (CNN) trained on 12 million manually annotated e-commerce images. It identifies:
Detected Elements
- • Object type: shoe, clothing, furniture, electronics...
- • Dominant colors: black, white, navy blue, red...
- • Textures: leather, fabric, metal, wood, plastic...
- • Logos/brands: Nike, Apple, Samsung... (OCR recognition)
- • Context: product cutout, lifestyle, zoom, overview...
Detection Accuracy
Enrichment with Product Data
The AI doesn't just analyze the image. It cross-references data for an ultra-precise description:
Example: Multi-Source ALT Generation
Success
Enable Automatic Generation
Configuration in Lexiik
- 1Access AI settings
Dashboard → Products → Images → Automatic ALT Tags
- 2Select the mode
• Vision only: Visual analysis only (fast, 0.2 credit/image)
• Vision + Data: Cross-referencing with product info (precise, 0.3 credit/image)
• Vision + Semantic SEO: Keyword enrichment (expert, 0.5 credit/image) - 3Choose the scope
Selected images | All images without ALT | Full catalog (rewrite)
- 4Launch generation
The AI processes 100 images/minute. For 2,000 images: ~20 minutes of processing
Premium Feature
Preview and Validation
Before publishing, Lexiik presents a summary table for quick review:
| Thumbnail | Old ALT | New ALT (AI) | Action |
|---|---|---|---|
| [image] | image_001.jpg | Nike Pegasus 40 black white running shoe side view | ✓ Approve |
| [image] | (empty) | Runner wearing Nike Pegasus 40 forest jogging | ✓ Approve |
Impact and Measurable Results
Google Images Traffic Increase
Before (Empty/Generic ALT)
After (AI-Optimized ALT)
📈 Case Study: Fashion Store (2,180 images)
- • 2,180 images × 0.3 credit = 654 credits
- • Approximately 65 euros (Expert plan)
- • Processing time: 22 minutes
- • +808 visits/month from Images
- • 2.8% conversion rate = +23 sales/month
- • Average order value 71 euros = +1,633 euros/month
- • ROI: +2,412% (payback < 2 days)
Did you know?
Go Further with Lexiik AI
ALT tag optimization is just one of Lexiik's many AI features:
AI Descriptions
Generate complete, conversion-oriented product pages in 3 seconds.
Semantic SEO
Enrich the lexical field to cover hundreds of related queries.
Credits Guide
Understand consumption, renewal, and optimize your usage.