Articles on Web Compression

• Caching and Compression for Performance
• Compressing Web Output Using mod_gzip for Apache 1.3.x and 2.0.x
• Compressing Web Output Using mod_deflate and Apache 2.0.x
• OLD ARTICLE: Important Apache updates since this version of the server was released — Hacking mod_deflate for Apache 2.0.44 and lower
• Compressing PHP4 Output
• Survey of Fortune 1000 Web Sites Using Compression by Port80 Software
• Web Site Compression by Wayne Berry of XCache

Web Compression Sites

• mod_gzip site
• mod_deflate (RU) (Apache 1.3.x) site
• mod_deflate (Apache 2.0.x) documentation

Web Compression Tools

• Check your compressibility with Port80's Tools

• Check the compressibility of your HTML — Hosted by Pipeboost
• Is your favourite site compressed? Check it here
• VIGOS Website Analyzer tool — Downloadable freeware application that analyzes web page/site content for compressibility
• Cannot detect externally linked CSS files
• Claims compression with JS files — browser compatability issues

Web Compression Standards

• RFC1945 — Hypertext Transfer Protocol — HTTP/1.0
• RFC2068 — Hypertext Transfer Protocol — HTTP/1.1
• RFC2616 — Hypertext Transfer Protocol — HTTP/1.1
• RFC1950 — ZLIB Compressed Data Format Specification version 3.3
• RFC1951 — DEFLATE Compressed Data Format Specification version 1.3
• RFC1952 — GZIP file format specification version 4.3