How do I optimally name an image?
SEO Knowledgebase > Keyword research, On-page SEO
Images are often forgotten in terms of SEO. Make sure you’ve named the image in the title tag to describe what it is and then add an ALT (alternative) tag to the image to describe the image. This will display text should the image not load for any reason. Both these tags will help your image to rank on Google images if you name them accurately. Using a relevant image (and thus a related keyword in the tag) will then help your page’s SEO.