How to Optimize Images for SEO

TL;DR: Optimize images for SEO by adding descriptive alt text that helps Google understand your content and improves accessibility.

Last Updated: March 2026

Alt text helps Google understand your images while making your website accessible to visually impaired users.

For Kenyan businesses competing online, proper alt text improves your image search rankings and can drive qualified traffic from customers searching visually for your products or services.

Imagine you run an online electronics store selling laptops in Nairobi.

A potential customer searches “Dell XPS 13 laptop Kenya” in Google Images.

Your product photo appears, but without proper alt text, Google shows a generic description.

Meanwhile, your competitor’s image says “Dell XPS 13 laptop silver 16GB RAM Nairobi Kenya” and gets the click. That’s a lost sale simply because you skipped describing your image properly.

Step-by-Step Guide to Write Effective Alt Text for Your Kenyan Business

Step 1: Describe what’s actually in the image using 5-10 words

Focus on the main subject—if it’s a laptop, say “Dell XPS 13 laptop silver finish” not just “laptop.” Understanding what alt text really means helps you see why specificity matters for both accessibility and SEO.

Step 2: Include your target keyword naturally if it fits

For a product page targeting “MacBook Pro Kenya,” work that phrase into the description authentically. This is part of optimising your on-page SEO properly since image alt text signals to Google what your page offers.

Step 3: Add relevant context like location, colour, or model number

Specifics help: “iPhone 15 Pro Max 256GB natural titanium Nairobi” beats “smartphone.” When you perfect your meta descriptions alongside alt text, you’re creating consistent signals for Google.

Step 4: Skip phrases like “image of” or “picture of”

Screen readers already announce it’s an image—jump straight to the description. This aligns with broader on-page SEO principles about eliminating redundant words that waste crawl budget.

Step 5: Keep it under 125 characters total

Screen readers cut off longer descriptions, and Google prefers concise, relevant text. If you need a glossary of other technical terms like this, check out my SEO FAQs page.

Step 6: Make decorative images empty with alt=””

Background patterns or design elements don’t need descriptions—empty alt prevents clutter. This tactical decision is part of implementing technical SEO correctly for your Kenyan site.

✅ Your Alt Text Checklist:

• ☐ Describe the main subject clearly
• ☐ Include the target keyword naturally
• ☐ Add specific product details
• ☐ Keep under 125 characters
• ☐ Remove “image of” phrases
• ☐ Test with screen reader
• ☐ Leave decorative images empty

Start with your product and service pages today—these drive the most traffic. You’ll notice improved image search visibility within 2-3 weeks as Google re-crawls your site. Small effort, significant discoverability boost.

Download this complete SEO checklist to track all your on-page optimisation tasks, including alt text implementation.

Let’s run a free SEO analysis to see how your current images perform in Google’s eyes.

Related Content

Curious to learn more about on-page image optimisation? Check out the posts below:

• What is On-Page SEO? — On-page SEO is the broader category that alt text falls under, covering all elements you control directly on your pages.
• How to Optimise On-Page SEO — See how alt text fits into your complete on-page optimisation strategy with practical Kenyan business examples.
• What is Technical SEO — Technical SEO includes image optimisation, crawlability, and the technical foundation that makes on-page elements work properly.
• What is a Meta Description — Meta descriptions work alongside alt text to tell Google exactly what each page offers to searchers.

These articles will walk you through the basics of creating search-friendly content.

Have more SEO questions? Our SEO FAQs Kenya page answers the most common ones.

Frequently Asked Questions