Image Optimization

Preparing images so they load fast, describe themselves properly and can be found in image search.

Four steps, in order: correct dimensions, modern format, compression, then alt text and a descriptive filename.

Automate the first three in the pipeline and leave editors only the part that needs judgement.

Images dominate page weight, so this is usually the largest single speed gain available.

Image search sends real traffic in visual categories, and it costs nothing extra once the basics are in place.