The Ultimate Guide to Image SEO: Optimizing Your Alt Text for Better Rankings

by | Feb 27, 2023 | Local SEO, SEO

What is Image Optimisation?

Image optimization is a critical component of a website’s search engine optimization (SEO) strategy. It involves reducing the file size of images on your website without compromising their quality, as well as providing relevant context to search engines to help them understand what the images are about.

By optimizing images for SEO, you can improve your website’s visibility in search results, drive more traffic, and enhance user experience. In this post, we’ll discuss the importance of image optimization for SEO and provide tips on how to optimize images for maximum impact.


Choosing the Right Images for Your Website

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The images you choose to use on your website can have a significant impact on your SEO. Therefore, it’s essential to choose the right images to help you achieve your goals. Here are some tips for choosing the right images:


Types of Images That Work Well for SEO

When choosing images for your website, you should consider what types of images work well for SEO. For example, images that are relevant to your content and of high quality tend to perform better in search results. Additionally, infographics, diagrams, and charts that offer unique value to the user are more likely to be shared and linked to, which can further improve your website’s SEO.


Using Unique and Relevant Images

Using unique and relevant images is another important aspect of image optimization. Stock photos that are generic and not related to your content are unlikely to provide any value to users or search engines. Instead, you should consider using original photos or creating custom graphics that align with your brand and message.


Choosing Images That Align With Your Brand and Message

Finally, when choosing images for your website, you should think about how they align with your brand and message. Your images should be consistent with your brand’s colors, tone, and style to create a cohesive and professional look. Moreover, they should also align with the message you’re trying to convey to your audience.


How to Optimize Your Images for SEO

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Now that you know how to choose the right images for your website, let’s discuss how to optimize those images for SEO. Here are some tips on how to optimize your images for SEO:


Resizing and Compressing Images

One of the most crucial steps in image optimization for SEO is resizing and compressing images.

Large images can slow down your website’s load time, which can negatively impact your SEO.

By resizing and compressing your images, you can reduce their file size without sacrificing quality. Tools like Adobe Photoshop or Canva can help you do this easily.


Naming Images With Descriptive File Names

Naming your images with descriptive file names can help search engines understand what the image is about. Instead of using generic names like “image001.jpg,” you should name your images with descriptive names that include keywords related to the image’s content. For example, if you have an image of a cat, you might name it “orange-tabby-cat.jpg.”


Using Alt Tags to Describe Images

Another critical aspect of image optimization for SEO is using alt tags to describe your images.

Alt tags are short descriptions of your images that appear in place of the image if it fails to load.

Search engines also use alt tags to understand what the image is about. Therefore, it’s essential to use descriptive and keyword-rich alt tags to help search engines understand the context of your images.


Captions and Context

Finally, you should also consider providing captions and context for your images. Captions are small blocks of text that appear beneath an image and provide more information about what the image is showing. Providing context around your images can help search engines understand the image’s relevance to your content and improve your website’s SEO.


Best Practices for Image Optimization

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Now that we’ve covered some of the common mistakes to avoid with image optimization and the importance of page speed, let’s discuss some best practices to ensure your images are optimized for SEO.


1.  Avoiding Common Mistakes With Image Optimization

By avoiding the common mistakes we discussed earlier, you’re already on your way to optimizing your images for SEO. Remember to use appropriately sized and compressed images, use descriptive file names and alt tags, limit the number of images on a page, and optimize for mobile devices.


2.  Importance of Page Speed

In addition to optimizing your images, it’s crucial to ensure that your website’s page speed is up to par.

Improving your website’s load time by reducing image file sizes and leveraging browser caching can have a significant impact on your SEO.


3.  Mobile Optimization

As more and more users access the internet via their mobile devices, it’s crucial to optimize your images for mobile devices. Make sure your website is responsive and mobile-friendly and that your images are appropriately sized and compressed for mobile devices.



In conclusion, optimizing your images for SEO is a crucial aspect of any website’s search engine optimization strategy. By avoiding common mistakes, optimizing for page speed, and ensuring mobile optimization, you can improve your website’s search engine rankings and overall user experience.

So, if you haven’t already, take a look at your website’s images and see where you can make improvements. By taking the time to optimize your images, you’ll be setting your website up for success in the long run.

We hope this article has been helpful, and we encourage you to start optimizing your images today!

If you’re looking to improve your website’s SEO, consider working with a reputable digital marketing agency like eWebsites

About the Author

Tomás Affranchino Vivanco

Tomás is an SEO professional with over 10 years of experience. He's the founder of eWebsites, a leading SEO agency in Melbourne. Tomás has led several successful SEO campaigns in the most competitive niches in Australia, like health, real estate and law.

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