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When you have found the right image to use the next step is to optimize that image for use on your website. Here are the things that you need to keep in mind.

Choose the Right File Name

Image SEO starts with the right file name. Of course, this is the first location to use that keyword. Without even looking at the actual image, you want Google to know what the image is about. The main keyword should be the main subject of the photo and best to be in beginning of the file name.

Scale for Image SEO

Loading times are important, faster the site, the easier to visit and index a page is. Images can have a huge impact on loading times. Scale the image to the size you want to show it.

Use Responsive Images

This one is essential for SEO as well. Images might ruin the mobile experience and could increase bounce rate.

Reduce File Size

The next step in image SEO should be to make sure that scaled image is served in the smallest file size possible. There are tools for that.  You can still reduce the file size of these images by, for instance, removing the EXIF data.  Please check if your image optimization succeeded.


The caption of the image is the text that accompanies the image. People use that text in scanning an article. Next to headings, people tend to scan the image and include the caption as well in that scan. Decide whether the image at hand is an image you want to use for SEO as well or not and make the decision to use caption or not.

Alt Text and Title Text

The alt text (or alt tags) is added to an image so there will be a descriptive text when the image for whatever reason can’t be displayed to the visitor. Be sure to add alt texts. Make sure the alt text includes the SEO keyword for that page and relates to / describes the image.

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