files/en-us/glossary/brotli_compression/index.md
Brotli is a general-purpose lossless compression algorithm. It compresses data using a combination of a modern variant of the Lempel-Ziv coding LZ77 algorithm, Huffman coding, and second-order context modeling, providing a compression ratio comparable to the best currently available general-purpose compression methods.
Brotli provides better compression ratios than {{glossary("GZip_compression", "gzip")}}, and speeds that are comparable to deflate. However brotli compression is slower than Gzip compression, so gzip may be a better option when compressing {{glossary("Cache", "non-cacheable")}} content.
Brotli is compatible with most modern browsers, but you may want to consider a fallback.