Images make websites attractive, but they are also the most common reason pages load slowly. Optimised images load fast, help Google understand your page, and can bring visitors from Google Images, especially for products, designs, food and real estate.
1. Use real, relevant photos
Original photos of your products, premises, team and work build trust and stand out. Stock images are fine for backgrounds, but real photos convert better.
2. Name files descriptively
Before uploading, rename files:
• ❌ IMG_4582.jpg
• ✅ bridal-silk-saree-red-coimbatore.jpg
Use lowercase words separated by hyphens.
3. Write good alt text
Alt text describes the image for screen readers and search engines.
• Describe what the image shows, briefly and accurately
• Include a keyword only when it fits naturally
• Skip alt text for purely decorative images
Example: “Modern dental clinic reception in RS Puram, Coimbatore”
4. Compress and resize
• Resize images to the maximum size they appear on the page
• Compress them; most images can shrink a lot without visible loss
• Aim for small file sizes, especially for images above the fold
5. Use modern formats
WebP and AVIF are usually much smaller than JPEG and PNG at similar quality. Most modern browsers support them, and many website platforms convert automatically.
6. Lazy load below-the-fold images
Lazy loading delays images until the visitor scrolls near them, speeding up the first view. Don’t lazy load the main image at the top of the page.
7. Set width and height
Specifying image dimensions prevents the layout from jumping while loading, which improves Core Web Vitals (CLS).
8. Add context
Place images near relevant text, use captions where helpful, and make sure the surrounding content explains what the image shows.
9. Image sitemaps and structured data
For product-heavy or portfolio sites, include images in your sitemap. Product schema with images helps product listings.
Quick image SEO checklist
• ☐ Real, relevant photos
• ☐ Descriptive file names
• ☐ Helpful alt text
• ☐ Resized and compressed
• ☐ WebP or AVIF where possible
• ☐ Lazy loading below the fold
• ☐ Width and height set
Frequently asked questions
Does alt text help SEO? Yes. It helps Google understand images and improves accessibility.
What image size is best? As small as possible while looking sharp at the size displayed.
Should I put text inside images? Keep important text in HTML, not only inside images, so Google and screen readers can read it.


