Write SEO-Optimized Image Alt Text for Better Rankings
Generate SEO-friendly and accessible image alt text with keyword integration, variations, and best practice guidelines.
📝 The Prompt
Act as an SEO and web accessibility expert. Write optimized alt text for a set of images on the following web page:
**Page URL/Title:** [PAGE_TITLE]
**Page Primary Keyword:** [PRIMARY_KEYWORD]
**Page Topic Summary:** [TOPIC_SUMMARY]
**Target Audience:** [TARGET_AUDIENCE]
Here are the images that need alt text:
1. [IMAGE_1_DESCRIPTION — describe what the image shows]
2. [IMAGE_2_DESCRIPTION]
3. [IMAGE_3_DESCRIPTION]
4. [IMAGE_4_DESCRIPTION]
5. [IMAGE_5_DESCRIPTION]
For each image, provide:
**A. Primary Alt Text (Recommended):**
- Length: 80-125 characters
- Accurately describe the image content
- Naturally incorporate [PRIMARY_KEYWORD] or a relevant secondary keyword where it genuinely fits the image (do NOT force keywords into every alt tag)
- Follow accessibility standards (WCAG 2.1) so screen readers deliver a meaningful experience
**B. Alternative Option:**
- A second alt text variation with a different keyword angle or phrasing
**C. SEO Notes:**
- Explain why you chose to include or exclude a keyword for that specific image
- Flag if the image would be better served as decorative (alt="") and why
After writing alt text for all images, provide:
**General Best Practices Checklist:**
- 5 do's and 5 don'ts for image alt text in SEO
- How alt text impacts Google Image Search rankings
- When to use title attributes vs. alt attributes
- File naming conventions that complement alt text optimization
Format output as a numbered list matching the image numbers with clearly labeled sections.
💡 Tips for Better Results
Describe the image honestly first, then see if a keyword fits naturally — forced keyword insertion in alt text hurts accessibility and can trigger spam signals. Don't start alt text with 'Image of' or 'Picture of' as screen readers already announce it as an image. Pair optimized alt text with descriptive, keyword-rich file names (e.g., 'blue-running-shoes-nike.jpg' instead of 'IMG_4392.jpg') for maximum image SEO impact.
🎯 Use Cases
Content editors, bloggers, and e-commerce managers use this when uploading images to web pages or conducting on-page SEO audits to improve image search visibility and accessibility compliance.