Source: https://www.seo.com/blog/8-things-need-every-image-wordpress-website/
Are all the images on your website perfectly optimized? Taking time to edit, compress, add description, etc. before you publish them will get you A+ grade on Google. This means your site could be rewarded with favorable search rankings. Here are a few image optimizations tips:
Edit to produce high quality photos.
- Quality is as important as proper grammar.
- Crop, resize, and tweak your images.
- There are free online photo editing tools you can use.
Compress large image files.
- Save valuable space.
- Speed up your site.
- Improve loading performance.
- Check free image compression tools online
Add descriptive file name.
- Name images properly.
- Give information about what the image portrays.
- Add your keywords.
- Use hyphens to separate words.
- File names are used by search engines to identify and index results
Add image description and caption.
- Short and specific description will do.
- Improves user experience.
Add Alt Text Attribute
- A very important element for SEO
- This is the textual representation of the image content.
- It is the primary source of Google to determine information about images.
- Avoid duplicates, each need to be unique.
Properly optimize all of the images on your site to better your rankings in the search results.