HTML

The loading=”lazy” Attribute Is Not Just About Images

- - ErcanOPAK

Everyone uses it for images.
Almost nobody uses it for iframes.

Example

<iframe 
  src="https://www.youtube.com/embed/VIDEO_ID"
  loading="lazy">
</iframe>

Why this matters

  • Prevents layout blocking

  • Improves First Contentful Paint (FCP)

  • Massive win for content-heavy blogs

Cause → Effect
Less initial network pressure → faster perceived load.

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