Image SEO has become really important in page optimization as it can significantly help increase traffic to your website. Properly chosen, visually appealing, and high-quality images are inviting the viewer to interact with the content. Visuals communicate better than words, and it is often more likely for people to click on a picture rather than text. That is why they need special attention and mustn’t be overlooked as an important part of the on-page SEO techniques. If you optimize your images correctly, they will appear in search results, catch the eye of a user, and lead them right to your website. Then again, your website needs to load fast, otherwise many visitors might leave the website. This brings us back to image optimization. By resizing the images and keeping them at the smallest possible sizes (but the largest needed), you can significantly improve your page speed.
We will show you the main reasons why you shouldn’t neglect Image optimization:

1- Page Loading Speed

New Google research has shown that 53% of mobile users will leave if a web page load is slower than 3 seconds. On average, images take from 40% to 60% of the page weight. By resizing and compressing them, you can save a great deal of gigabytes and make your whole website load much faster.

File Sizes

You don’t need all your images to be big-sized. For example, if you have a 2400px wide image, and you’re optimizing your page for a mobile phone which needs only 640px of the image width, then your website is unnecessarily loading a huge amount of data. It would be best to have multiple prepared images for mobile, tablet, and desktop.
After resizing images, you need to compress them to minimize their size in bytes as well. You shouldn’t have an image larger than 1MB on your page. However, this process will impact the graphic, so you need to be careful not to degrade the image quality. Compress it as much as you can, but keep it sharp! High-quality images usually can be compressed by 60% to 80%.
There are many good image compression tools you can find online.

File Types

The file type you choose is also very important. The most common file types on web pages are JPG, PNG, and GIF. There are also newer, and still less popular types like SVG and webP.

So, what file type should you use? That is firstly depends on your needs.

  • PNG file gives you a high quality and transparent background, which is great for logos.
  • GIFs are best for animations, but also have huge file sizes.
  • The most used file format is JPG or JPEG as it is very adjustable when it comes to quality level. With JPGs, you can achieve a good balance of quality and file size.

Using the wrong file format can affect the appearance of the images on your website and their loading speed. That directly impacts the user experience.

2- User Experience

Another very important thing is optimizing images by giving them the title and alt text.
Good descriptive alt text will provide more information about the image and what your article is about. It is used by search engines and can boost relevancy and help your website rank higher in search results.
The alt attributes will show if the image fails to load.
The alt text is crucial for visually impaired people who use screen readers that tell them what is on the image.

3- Increased Conversions

Page loading speed and better user experience are essential for better SEO ranking on the search engine. And higher ranking directly leads to more traffic on your website, more clicks, and more visitors, which increases the chance for more conversions and turning visitors into customers.
It all depends on your website’s design and optimization of your page and the images whether your visitors will leave or stick around on your website. Relevant and visually appealing images can make a huge difference. Prioritizing image optimization is the best way to get your page’s loading speed to 3 seconds or less and keep your visitors satisfied. Having a perfect image size and format for every type and size of the page is crucial. Fast-loading sites convert at higher rates.