It uses the DEFLATE algorithm, which combines LZ77 (replacing repeated strings with references) and Huffman coding (using shorter bit sequences for common characters).
Gzip (GNU zip) is a popular open-source tool and file format used for . 12353sckgzip
It offers much higher compression ratios because the algorithm can find patterns across different files rather than just within one. It uses the DEFLATE algorithm, which combines LZ77
If you need to compress a directory into a solid Gzip archive on or macOS : It uses the DEFLATE algorithm
Standard Gzip compresses files individually. However, "solid compression" is a method where multiple files are treated as a before compression.
If you are looking for "solid content" regarding Gzip and compression, What is Gzip Compression?