How it works
Use it for suitable below-fold resources; the main image usually should not wait.
Example
Example: Images in a long list load as the visitor approaches them.
Common mistakes
Deferred content must remain discoverable and accessible.
How can you check this in practice?
Check that below-fold images load as they approach the viewport. Main text should not require a click or gesture before a crawler can access it. Give images dimensions and a real accessible URL.
Distinctions and limitations
Lazy loading avoids unnecessary downloads but can delay a main LCP image. Deferring an image and hiding main content are different decisions; the latter can constrain indexing.
Official sources
Editorial responsibility: Martin Zhelyazkov · Founder of Z-Consult
Updated: 05/11/2026
For a correction or question: office@z-consult.bg