It’s best to create image alt tags at the time of upload to avoid having to revisit them later. When writing an image alt tag, we recommend taking the following things into consideration:
- If you are optimizing a large number of images, focus primarily on images that are found on core/important pages first (or only).
- The alt tag should describe what the image is about.
- Include keywords naturally only when it makes sense, example:
- A group of Chicago web designers sitting around a boardroom table (instead of a group of people sitting around a boardroom table)
- A plumber in San Diego fixing a bathroom sink (instead of a man/woman fixing the sink)
- It is important not to make them random keywords that don’t describe the image itself as that violates accessibility standards.