Image Lazy Loading
Checks images below the fold use loading="lazy" — but LCP image does NOT.
What this check measures
We identify below-the-fold images and check loading="lazy". Also flag if the LCP image itself has lazy (makes LCP worse).
Why it matters
Lazy-loading cuts initial page data 50-80% on image-heavy pages. Wrong lazy (on LCP) destroys LCP. The fix is 5 characters per image but huge perf gain.
How our audit detects it
Identify images by DOM position. Check for loading attribute. Flag mismatches.
Typical findings
- error_outlineHero image has loading="lazy".
- error_outlineGrid of 40 thumbnails below the fold, all eager.
How to fix
Lazy everything below the fold, eager (or nothing) on LCP. Add fetchpriority="high" on LCP for an extra boost.
Frequently asked questions
How do I identify LCP?expand_more
Want this checked on your site?
Pantra runs the full audit (SEO, Security, GEO, Performance, Schema, Technical, Images) in 10 seconds and generates stack-specific fix prompts.
Scan my siteRelated checks
All Images Have Alt
Checks that every <img> has an alt attribute (empty or descriptive).
ImagesDescriptive Alt Text
Checks that alt text is meaningful — not "image", "photo", or the filename.
ImagesOG Image Present
Checks that every page has a valid og:image for social sharing previews.
ImagesOG Image Dimensions
Checks that og:image is ≥ 1200×630 — optimal for all social platforms.