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Sirv automatically serves GIFs as animated WebP images - if the users browser supports WebP - which drastically reduces image file size.

If you specifically require GIF format, you can compress your GIFs with the gif.lossy parameter.

The optimal format is Sirv's default format. It will serve the most optimal file format to each user, depending on which formats their browser supports - usually that's WebP.

You can scale GIFs to any size with the w (width) and h (height) parameters.

The other dynamic imaging options (text, watermark, canvas etc) cannot be applied to GIFs.

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