[philsnow]

"5) GZIP rarely necessary."

if the server already has the bytes gzipped, it is often pure win to ship the gzipped bytes: consider that the client may be able to finish uncompressing the gzipped response earlier than it could otherwise have received the last byte of the uncompressed response.

[mjt0229]

That's a neat idea. But in the case that the server doesn't have them zipped, I'm not sure that the blanket statement made in the blog post is really right, either.