`WEBP_QUALITY` (82) is what a rung is worth when somebody opens it and looks at it. Nobody opens a
poster: it fills the frame for about a second and is then covered by the video it belongs to. Paying
photograph quality for that is paying for a second that ends.
Measured on the same pixels with the same encoder, at 768 wide: 22,906 bytes at 82, 17,738 at 74. That
is 23% off the Largest Contentful Paint for a difference nothing is on screen long enough to show.
Not lower than the small rungs use. It IS the LCP, so its first impression is the page's, and 74 is
what every thumbnail on the site already ships at — measured further down, 68 and 62 buy 1.2 and 2.7
KB more and start costing something a still frame will show.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
pastilhasandClaude Opus 5
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