In 2015, two engineers at Google designed a new compression algorithm called Brotli that can have a better compression without spending more time. Brotli is already supported by the most browsers such as Google Chrome, Mozilla Firefox, Opera, and Microsoft Edge.
Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.
https://blogs.msdn.microsoft.com/dotnet/2017/07/27/introducing-support-for-brotli-compression/
