Bandwidth restriction from WAN to LAN

Hii All,,

 

I have a situation where we are hosting web service. And i found that there is huge traffic generated from WAN to LAN which is browser based(http/https).

But due to this the Upload bandwidth on my server has gone very high. Is there any way to limit to traffic (http/https) from WAN to LAN as its bringing down my internet bandwidth.

 

Thanks