Why do real-world servers prefer gzip over deflate encoding?

Question

We already know deflate encoding is a winner over gzip with respect to speed of encoding, decoding and compression size.

So why do no large sites (that I can find) s

Answer 1

As far as I know (disclaimer: and I'm not an expert here, just what I've heard), gzip uses the same algorithm as deflate but it has more header stuff that make it have a larger size (relative to deflate). However, I think deflate is supported by less clients and proxies.