Google Search Advocate John Mueller says large video files loading in the background are unlikely to have a noticeable SEO impact if page content loads first.
A site owner on Reddit’s r/SEO asked whether a 100MB video would hurt SEO if the page prioritizes loading a hero image and content before the video. The video continues loading in the background while users can already see the page.
Mueller responded:
“I don’t think you’d notice an SEO effect.”
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Broader Context
The question addresses a common concern for sites using large hero videos…

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