Test GZIP compression of your server easily
If you are running servers (which you hopefully do), then Gzip compression should be a topic, as this simple thing will usually speed up you loading times dramatically, reducing the page size down to 10% for non-binary content /text is quite common, or 50% for the entire page. Anyway, testing if compression works is not so easy, therefore his excellent sweet little online tool helps with instant testing:
The result looks like this:
