To note,
- Make sure that the images added are relevant to the content of the page
- Don't put text on images. It will be difficult in indexing and translation
- Use
alt attributes
- Use sharp, high-quality images instead of blurred, low quality, low-resolution images
- use SEO friendly URLs. URLs like
https://sitename.com/p-flower-show.php
is preferred over
https://sitename.com/p-1830.php
- Add appropriate structured data markup
- Allow large image previews. Define this in meta tag (content="max-image-preview:large")
- Declare a license using meta data within the image or structured data of the page
- Use lazy loading for images and employ techniques like responsive images and optimised images
- Consider using AMP
