@@ -43,6 +43,12 @@ This means it will be very fast, but it will not pick up _all_ changes.
4343- It is generally recommended to do a `./hakyll rebuild` before you deploy your
4444 site.
4545
46+After rebuilding your site, all files will look as "modified" to the filesystem.
47+This means that when you upload your site, it will usually transfer all files --
48+this can generate more traffic than necessary, since it is possible that some
49+files were not actually modified. If you use `rsync`, you can counter this using
50+the `--checksum` option.
51+
4652## Pretty URL's
4753
4854There is an option in Hakyll to produce pretty URL's, which is disabled by