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stevepentler/image_compression_spike.txt

Created August 8, 2018 16:37
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Image Compresssion
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image_compression_spike.txt
A. GIF doubled in size for standard image, 6.7KB => 13.2
- fully supported
- no gains for standard images without significant blocks of color
B. WebP was reliably 2/3 original size. 26.3KB => 17.8
- only works in Chrome/Opera, Firefox is considering support but I wouldn't count on it
- would require backfilling webp data (but for large/trafficked orgs this could be worthwile)
- JS side - detect chrome/opera, change AWS extension to .webp
- Save on AWS feeds, speed up lazy loading and UX considerably
- Couldn't find a functional polyfill for unsupported browsers (webp-hero package)
- Don't want conditional responses (one persion receives one extension, another a different extension) from the API, so would prefer to keep on front end
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