Every video card on our category grids was hotlinking a 1280x720 JPEG from a third-party CDN and then letting CSS scale it down to about 320 device-independent pixels. That is roughly 90 KB of wasted transfer per card, 24 cards per page, across eight regional page variants that each carry their ...
Source: [Dev.to](https://dev.to/ahmet_gedik778845/building-a-video-thumbnail-generator-service-with-go-and-ffmpeg-workers-h52)