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How To Achieve Image Optimization

Image optimization techniques reduce page speed, improving SEO and driving more organic traffic to your website.

Oli Kashti - Writer and Fact-Checker for Fast Simon
By Oli Kashti

Published June 19, 2025.

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Customers have high expectations these days, needing instant gratification and engaging content. Making sure that you have responsive images is key to make sure that load times stay low, content quality stays high, and conversions stay optimal.

Learning how to optimize your images can enhance your brand, attract new shoppers, and set the tone for the kind of business you are.

What Is Image Optimization?

Image optimization means that all your pictures look great and are of high quality, no matter where the customer is viewing them, either desktop or mobile. The three main elements which play a part in how optimized an image is are:

  • Image file format

  • Image dimensions (height and width)

  • Screen resolution

Why Optimize Images?

Images are necessary for any successful eCommerce store. No customer is going to purchase something without seeing a picture of it first. The quality of the images will give the shopper an indication of the quality of the product. Therefore, the image quality has to be good.

Having good SEO is a key part of success in eCommerce. It means that you are easily discoverable and you have a constant flow of organic traffic coming in.

Unoptimized images will take up a lot of space on your website, meaning your website will be heavy and slow loading. If images are optimized, it can provide the following benefits:

  • Balanced speed and quality

  • Improved search performance

  • Increased sales

  • Higher customer satisfaction

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How To Optimize Images

There are different ways that you can optimize the images on your website. Let’s take a look at some of them now.

Image Names

Image names should be direct and concise. The names shouldn’t be default names, but they should just have relevant keywords. This will boost image SEO, and keep things efficient. 

Creating descriptive, key-word rich file names really helps boost image optimization. Search engines crawl through image file names as well as other website text.

You can look at website analytics to see what keywords your customers use to find you, and keep applying these to your images. The most common keywords are a great data point to know, in order to move your business forward.

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Alt Attributes

Alt attributes are the text alternative when a browser can’t render the images. These are useful for web accessibility, and even are shown when you hover over the images. The alt attribute adds SEO value to your website, also by including keywords and getting noticed by search engines.

Product Angles

The way the images show up on your site are super important. You need to show multiple angles of an image, not just one shot. Think about all the ways customers would view the item if they were looking at it in-store, and make sure they can see the same level of detail in your shots.

Image Dimensions

You want to make sure that images on your website look good on web browsers and also on mobile or high-res screens. Check out the resolution sizes of the images you have, and the way that they will be viewed.

You can use a content delivery network, or a CDN. This offloads resizing images and serving the best image format for a users’ device. It also improves the loading speed of the image file, as they will have server locations closer to the end user.

Image Format

Image format is so important to get right on your site. Vector images are based on mathematical formulas, which can scale to different sizes without sacrificing quality. This is a great choice for logos, icons and simple and sharp graphics.

Raster images are pixels forming high detail images such as photographs. Newer techniques can compress these images to keep the quality. Common formats for these images can be:

  • JPG

  • PNG

  • WEBP

  • AVIF

Different websites have different specifications and needs. Check out what would work best with your website, and then convert the images to the format that will work best for you.

Conclusion

Image optimization is key in order to make sure your customers are achieving the best level of shopping experience possible. As you can see in this post, there are many actionable ways that image optimization can be achieved. Taking into consideration keywords, image types and product angles are all key. Once you’ve gone through the steps highlighted here, you will already see the growth in SEO.



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