Why Image Optimization Is Important For SEO

Why Image Optimization Is Important For SEO

Think about it… When was the last time you uploaded an image to a website? There’s a good chance you downloaded it from a stock photo source, uploaded it to your site’s backend, and then put it into the page.

A great example of image optimization, yes? 

Um, not really. 

In actual fact, you’ve just added lead weight to your website, which ultimately slows your page speed down. Also, (sorry to point this out) without alt text and SEO, search engines can’t even read your images! 

So now that we’ve shattered your world… Let’s sort it out and get things right.

The vital thing to remember is that MANY web searches happen on Google Images. Image optimization has several benefits, including improved user experience, quicker website load times, and extra ranking prospects. 

SEO novices and experts know image optimization on your website’s photos is not futile. And, you’re squandering a superb SEO asset if you’re not optimizing your images appropriately. 

But which criteria are most important in ensuring that your image optimization, and are easily found and doesn’t slow down your site?

SEO Best Practice For Image Optimization

Here are some key image optimization tips you should be aware of.


While there are several image formats to pick from, the most common on the web are PNG and JPEG.

      • PNG: Produces higher-quality images but has a larger file size.

      • JPEG: Image quality may suffer, but the quality level can be adjusted to achieve a suitable balance.

      • WebP: The only image format supported by Chrome and Firefox allows you to choose between lossless and lossy compression.

    Note: If you use.jpg pictures within an inline SVG format, Google’s systems will not index them.


    According to the HTTP Archive, graphics account for 21% of a webpage’s total weight. That is why we strongly advise compressing your images before uploading them onto your website. 

    This can be done in Photoshop or using a platform like TinyPNG. Utilize Google’s PageSpeed Insights tool if you’re unsure how your photos influence your page performance.


    We all want our images to POP! on our websites. If you use stock photos on your website, you’ll appear unoriginal, much like the millions of other beige sites out there.

    Far too many websites are loaded with the same generic stock photographs. Consider a corporate website, a consultancy firm, or a company that takes pleasure in customer service. All of these websites utilize the same stock image of a businessman smiling.

    While you may have adequately adjusted your stock photographs, they will not have the same impact or possible SEO advantages as an original, high-quality image.


    It is critical to have meaningful, keyword-rich file names for SEO. Image file names inform Google and other search engine crawlers about the image’s subject matter.

    File names often begin with “IMG 98749” or something like that – this is not beneficial to Google or to your website! Change the default file name to assist search engines in comprehending your image and boosting your SEO value.

    Depending on your media library’s size, this may require a bit of effort, but altering the default image name is usually a good idea.


    While a human eye can decipher the image, search engine spiders require further context. Search engines cannot correctly index your image content without replacement text.

    A great alt tag adds context while also assisting visually challenged people. Search engines can scan the alternative text to determine the page’s rating when a glitch blocks an image from loading. Write a more detailed alt tag than the file name. Aim for 10 to 15 words to give information about the image.

    TIP: To increase visibility, use brand-related phrases in alt tags, but avoid keyword stuffing.


    Google’s Image Guidelines have been changed. One of the significant changes they highlighted was that they now rank images based on the file path and name.

    Again, the file location and file name are genuine ranking factors.

    For example, if you’re an eCommerce firm with various goods, rather than putting all of your product images in a generic/media/folder, organizing your subfolders into more category-specific subjects like /shorts/or /denim/would be best.


    Since Google’s algorithm uses mobile-first indexing, crawlers focus primarily on a site’s mobile version. As a result, your images should be mobile-friendly as well. How? The basic answer is to make sure your graphics and website layout are mobile-friendly.

    Some website builders and templates resize images automatically, but you may define an image size based on a device’s width. To accomplish this, add some custom CSS code to your page. 


    You want images in your sitemaps, whether adding them to an existing one or building a new one for them.

    Including your images in a sitemap boosts the likelihood of search engines scanning and indexing your images. As a consequence, site traffic increases.

    If you’re using WordPress, Yoast SEO and RankMath SEO include a sitemap plugin.


    Use structured data to markup your content categories to help Google and other search engines produce more visually appealing results. 

    For instance, if you use schema markup on a product page and identify an image as a product, Google may associate the image with a price tag. Search engines bypass the algorithm to give the correct image and rely on the information supplied in structured data.


    So, before you begin uploading your image to your site, be sure to perform the above image optimization procedures.

    The most crucial factor is that the image and alternative text suit the page. 


    Consider these tips before posting any photos if you want your material to stand out. Using these methods of image optimization can make your material more appealing to both search engines and human readers.

    Have fun optimizing!


    Located in the heart of Johannesburg, our office sits in the affluent area of this metropolitan city. Sandton has been developed into one of the top financial districts in the country. All of the nation’s top investment banks and financial consultants have chosen Sandton as the head office. Some notable companies include Massmart and Nedbank. You can also find one of the biggest convention centres of the African continent in Sandton. The Sandton Convention Centre is a twelve storey building built to accommodate up to 10,000 people at any one time. Some of the most prolific annual events are held at this convention centre.

    Johannesburg has now transitioned from being a gold mining city to becoming one of the most multicultural and vibrant cities in the continent. Home to one of the world’s largest urban forest and art gallery, this is a progressive city that Kadima Digital is proud to call one of our homes.


    Located in southern Europe, a part of our team resides in Lisbon, the capital of PortugalLisbon boasts breathtaking scenery and a rich culture, and has become a hotspot for startups and other successful businesses. Companies such as Volkswagen, Tyson and Capgemini are examples of major international businesses established here. With Portugal being ranked 7th in the world for English proficiency, as well as being relatively cost-friendly, it’s no wonder so many entrepreneurs and CEOs are venturing towards its capital. Lisbon offers some of the most beautiful views in the world, and is a definite contender for the next big tech and business hub. With its world-class infrastructure, incredible culture, and high standard of living, there is no shortage of  experiences to be had.

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    Located in the heart of the middle east, our head office sits in Tel Aviv, Israel. This little country is home to more startups per capita and some very well known tech companies, including Payoneer, Walkme and Riskified. In the most recent years, the thriving tech scene has drawn many venture capitalists and startup founders to the city.

    Besides its mature business ecosystem, Tel Aviv is also known to be one of the best cities for nightlife and international cuisine. The cultural heritage combined with its modern sensibilities makes it the ideal environment for Kadima Digital to connect with forward-thinking brands and business leaders. It is our pride and honor to call the world’s most innovative tech hub our home.