You can tune firewall rules at least.
https://jsfiddle.net/hd3z6z1q/
Works on my Firefox
What about -moz-transform?
http://caniuse.com/#search=zoom ?
https://ru.wikipedia.org/wiki/%D0%9F%D1%80%D0%B5%D1%81%D1%82%D1%83%D0%BF%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F_%D0%B2_%D1%81%D1%84%D0%B5%D1%80%D0%B5_%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D1%85_%D1%82%D0%B5%D1%85%D0%BD%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D0%B9
https://ru.wikipedia.org/wiki/%D0%90%D0%BA%D0%BA%D1%80%D0%B5%D0%B4%D0%B8%D1%82%D0%B8%D0%B2
Have you tried to run siege on different machine?
It's browser-specific.
Ubuntu / Firefox: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0
Ubuntu / Chrome: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.100 Safari/537.36
You can't.........
MAC address of the nearby router? Or it's a joke?