Image optimization is beneficial for both reducing load speed and increasing user experiences.
 
Normally, optimize images for a website is done by practicing 5 works. In this infographic, I have tried to show the exact methods. That are actually beneficial for reducing the image weight.  
 
Do you know that?
 
Here, is some statistics that can increase the necessary of image optimization. These points prove – importance of reducing the load speed & relation with user experience(UX).
  • More than 50% of a website weight is caused by images
  • Half of the web users expect a website to load within two seconds.
  • 1s delayed page load time decreases 16% visitor & drop conversion of 7%.
  • Nearly 40% of users abandoning a page after 3 seconds
It means that if we can reduce the image size we can reduce the load time into half. Similarly. it helps to increase the sale.
 
If you want to create a flashing website – this is the first task to do.
 
Now
 
If you ever feel an urgency for reducing the load time, this infographic will assist you. Let’s dig down.

Golden Rules for Website Image Optimization

Infographic: Website images optimization tips for better load speed and user experience (UX).

If you want to learn in details you can read – How to Optimize Images for Web (Brief Guide)

 Using the correct dimension:

People feel the bigger size image will serve the best. But it is not! Use the exeat dimension it shows on the web.

Here you can see the chart vs necessary vs. unnecessary pixels. 

dependency of image size on pixels

The truth about Resolution factors in image optimization

Most people think that resolution is the quality of an image. DPI and PPI do not work on the web. Moreover, on our test on image optimization, we don’t find any relation to this 72dpi or 92dbi for web images. But, for some cases, images with high DPI create a blurry effect and add KBs. The only thing that matters is pixels.

Using the correct image format:

In particular, file extension aka file formats is relevant to the image size. Each image format has pros and cons. So, you will need to choose it wisely.

Similarly, we recommend using JPEG if there is no need transparent or animated image. Moreover, it also allows for background removing. 

Compressing The images:

Generally, you can compress a photo in several ways. There are many tools that allow automating this process. However, you can easily automate this process.  

Photoshop, Gimp and some other tools are substantial for manual image editing. Although, there are some free websites and tools that help to achieve the automated ones.

Mainly there are 2 types of compression.

  1. lossy compression, 
  2. lossless compression.

Lossy optimization: It means reducing the image quality for achieving a minimal size.

This will require AB testing. However, studying the end result allows the best optimization.

Lossless optimization: This technique allows optimizing the image without losing quality.

Using Progressive jpg:

Progressive JPEGs can be much fully optimized, resulting in small output size.