Video and Animation Performance Review
Control media weight and motion cost.
The Open buttons send the prompt text as currently shown below to that site only when you click. Fill in the placeholders first.
Review the video and animation on my site for performance and user impact. Site and audience: [SITE_AND_AUDIENCE]. Where video and animation appear and how they are implemented: [MEDIA_DESCRIPTION]. Page weight and speed data: [PERFORMANCE_DATA]. Check each item as Pass, Fail, or Cannot tell, with evidence and a fix: [ ] Videos do not autoplay with sound; autoplay is limited and muted when used [ ] Videos load lazily; a poster image shows first [ ] The heaviest video is not blocking the first render [ ] Hosted on a service or CDN that adapts quality to the connection [ ] Right formats and bitrates for display size [ ] Background videos are short, small, and replaced on small screens or low-bandwidth settings [ ] Captions, transcripts, and audio descriptions where needed [ ] Controls are accessible by keyboard and screen reader [ ] Animations use properties that are cheap to render (transform and opacity) and not layout-triggering ones [ ] Reduced motion preference is respected [ ] No flashing content that could trigger seizures [ ] Animation libraries are not loaded for a single effect [ ] Frames per second and long tasks checked on a mid-range phone Give a ranked fix list with estimated weight saved, and a policy for adding new media: size budget, formats, and review.
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