Does image size affect SEO?

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The simple answer is yes, image size can have a big effect on the SEO of your website.

What is SEO?

SEO –Search Engine Optimisation is the process of improving your website to increase it’s online visibility when people search for terms relating to your business. The higher ranking you are, the more likely it is people will come across your site.

Why does image size affect SEO?

One of the key factors for search engines is the speed a page loads. If the images on your website are too large then your website speed will be slow and your search engine ranking will be affected.

It’s vital that you use the correct size image file for the purpose, whether your image will be used as a thumbnail, website banner or anything in between.
Images need to retain a high quality look but be a small enough file to not have a detrimental effect on load speed.

It’s therefore important to specify to your content creator what your image will be used for – We will talk more about this on our Blog post – What type of images do I need in my marketing collateral?

You can use an editing tool to resize your images but be careful as you may distort the image, you may end up stretching the image so it looks out of proportion. This example shows the bottle elongated and stretched.

You also don’t want the image file to be too small, if an image is less than 72dpi (dots per inch) then it will appear grainy or pixilated. 72dpi is a web friendly size, much over that and your image is unnecessarily large.

Images used on your website are measured in pixels, the site building program Square Space  recommends images to be no more than 2500 pixels wide or image file of less than 500KB (kilobytes) to optimise your site speed.

For more info or if you require any content creating for your website then get in touch.