That sounds like a web page accelerator at work.
The Exede technology is called AcceleNet...a web page request is sent to the AcceleNet servers where all the content is gathered and compressed, then sent to the Gateway server for transmitting via Satellite back to the customer's modem, which has the AcceleNet decompression firmware built into the modem.
This accelerator technology not only speeds up web page loading but reduces the number of bytes counted against the customer's Data Allowance Policy, which is a sum of both download and upload bytes.
Early testing indicates AcceleNet reduces the web page byte count by about 50% (average) from what would have been counted without AcceleNet...
Of course AcceleNet does not compress file or video downloads that are already compressed.
I've had Exede12 since Feb. 23rd....all spot beams are now open..
It's an amazing difference from the old Wildblue Legacy plans..I'm a happy camper with the service..