Learning outcomes
- Explain how to use descriptive filenames, alt text and efficient formats.
- Complete the guided practice safely.
- Check that you can improve performance and context.
SEO and Performance
Image Optimisation
Learn to use descriptive filenames, alt text and efficient formats and improve performance and context in this beginner-friendly website development lesson.
Before you begin
Work on a practice copy, keep filenames lowercase and hyphenated, and create a backup before changing a live website.
Step-by-step instructions
- Open the relevant project page, file or WordPress screen and confirm you are working on a safe practice copy.
- Prepare one web image and its text alternative.
- Inspect the result using browser tools or WordPress Preview; do not publish yet.
- Check keyboard use, mobile layout, content accuracy, links, images and privacy where applicable.
- Confirm that you can improve performance and context, then save a clearly named version or backup.
Ian's practical tip: Preview first, test at desktop and mobile sizes, and keep a recoverable copy before publishing.
Practical activity
Prepare one web image and its text alternative. The expected result is to improve performance and context.