The one example I can think of with a pre-seeded dictionary (for web, no less) is Brotli. https://datatracker.ietf.org/doc/html/rfc7932#appendix-A https://data

The one example I can think of with a pre-seeded dictionary (for web, no less) is Brotli. https://datatracker.ietf.org/doc/html/rfc7932#appendix-A https://datatracker.ietf.org/doc/html/rfc7932#appendix-A You can more or less see what it looks like (per an older commit): https://github.com/google/brotli/blob/5692e422da6af1e991f9182345d58df87866bc5e/java/org/brotli/dec/DictionaryData.java https://github.com/google/brotli/blob/5692e422da6af1e991f918... Certainly it performs better than gzip by itself. Some historical discussion: https://news.ycombinator.com/item?id=19678985 https://news.ycombinator.com/item?id=19678985