1. Compression

1.0 JPG compression

1.0.0 Compress JPG images

1.0.1 Employ partial compression

1.1 GIF compression

1.1.0 Compress GIF images

1.1.1 Quantize your GIFs to 8x8

1.1.2 Reduce palette size

1.1.3 Fill negative space and remove dithering and noise

1.1.4 Optimize horizontal uniformity

1.2 ZIP compression

1.2.0 Use GZIP on your server