Loading content only when it is actually needed, such as images just before they scroll into view, instead of loading everything up front, to make pages start faster.
Synonyms
- on-demand loading
- deferred loading
Related terms
In plain words
- images load only as you scroll to them
- it loads stuff only when you need it
Usage example
The gallery uses lazy loading so images below the fold fetch as you scroll.
Categories
- Interaction patterns