Using gzip automatically
You can check any live site on Surge for these Gzip compression headers.
Files under 1KB
If you are using developer tools to check Gzip compression on individual files, you may find particularly tiny files have been omitted. Files under a certain number of bytes are actually too small to justify Gzip-ing. For example, if you publish a nearly-empty
index.html file, like:
…the filesize will be too small to be Gzip’d. Once there is enough content to push the filesize about the 1KB limit, it will be.