🖼️ Image Alt Text
Drive 10-15% more traffic from image search + improve accessibility
💡 Why Alt Text Matters
Alt text (alternative text) serves two critical purposes:
- Accessibility: Screen readers use alt text to describe images to visually impaired users
- SEO: Search engines use alt text to understand and rank your images in Google Image Search
Impact: Images with descriptive alt text can generate 10-15% of total site traffic through image search. Plus, it's legally required in many countries for accessibility compliance.
✅ Good Alt Text vs ❌ Bad Alt Text
❌ Bad Examples
<img src="hero.png" alt="image">
<img src="screenshot.jpg" alt="">
<img src="logo.svg">
Why bad: Too generic, empty, or missing entirely
✅ Good Examples
<img src="hero.png"
alt="Dashboard showing analytics graphs">
<img src="screenshot.jpg"
alt="Task management interface with drag-and-drop">
<img src="logo.svg"
alt="TaskFlow Pro logo">
Why good: Descriptive, specific, helpful
📝 How to Write Great Alt Text
1. Be Descriptive and Specific
Describe what's actually in the image as if you're talking to someone who can't see it.
❌ <img alt="screenshot">
✅ <img alt="Project timeline view with Gantt chart showing 5 active tasks">
2. Include Keywords (Naturally)
If relevant, include keywords users might search for, but don't stuff them.
❌ <img alt="project management software tool app dashboard">
✅ <img alt="Project management dashboard with team collaboration tools">
3. Keep it Concise (125 characters or less)
Screen readers may cut off long alt text. Aim for one clear sentence.
❌ <img alt="This is a screenshot of our amazing product dashboard that shows all the features including analytics, team management, task tracking, and reporting capabilities that help teams collaborate better">
✅ <img alt="Product dashboard with analytics, team management, and task tracking features">
4. Context Matters
Alt text should fit the context of the surrounding content.
Blog post about productivity:
<img src="kanban.jpg" alt="Kanban board showing work-in-progress limits">
Pricing page:
<img src="kanban.jpg" alt="Pro plan includes unlimited kanban boards">
🎯 Alt Text for Different Image Types
Product Screenshots
<img src="dashboard.png"
alt="Analytics dashboard showing website traffic trends and conversion rates">
Logos
<img src="logo.svg" alt="Company Name logo">
Team Photos
<img src="team.jpg" alt="Team photo of 8 remote workers on video call">
Icons (functional)
<button>
<img src="search-icon.svg" alt="Search">
</button>
Decorative Images
If an image is purely decorative (doesn't add information), use empty alt:
<img src="divider.svg" alt="" role="presentation">
🛠️ Quick Fix Guide
Step 1: Find All Images Missing Alt Text
Use your SEO report to see exactly which images need alt text. Each will show:
- Image source path (e.g.,
/images/hero.png) - Suggested alt text based on filename
Step 2: Add Alt Attributes
Find each image in your HTML and add the alt attribute:
<img src="/images/dashboard-screenshot.png"
alt="Real-time analytics dashboard with conversion metrics">
Step 3: Verify
- Deploy your changes
- Right-click images and "Inspect" to verify alt text is present
- Re-scan with SEO Booster to confirm 8/8 points
⚡ Pro Tips
- Use proper nouns: "Slack integration" not "chat tool integration"
- Avoid "image of" or "picture of": Screen readers already announce it's an image
- Make it actionable for CTAs: "Download free trial" not "download button"
- Update CMS templates: If using WordPress, Webflow, etc., set default alt text fields
- Batch process: Fix all images at once to save time
📈 Expected Results
After adding proper alt text to all images:
- Accessibility score: Pass WCAG 2.1 Level AA compliance
- Image search traffic: 10-15% increase in visitors from Google Images
- SEO score: +8 points in your hygiene report
- User experience: Better for screen reader users and slow connections (alt shows while loading)