human
What is the best way to optimize images for the web?
assistant
The best way to optimize images for the web is to compress them. This can be done by scaling down large images and using a file format that supports lossless compression, such as JPEG or PNG. Using an image optimization tool, such as TinyPNG or Kraken.io, will help further reduce the size of the images and increase the performance of the website. Additionally, alt text can be provided for every image to increase accessibility.