Virtual Private Network,agar aapka ISP(Internet Service Provider) jaise ki BSNL,Airtel agar koi website block karde jise aap sidhe website ka address daalkar ni khol paa rhe hain browser m to aap VPN use kar sakte hain use kholne k liye,Jaise agar aap chrome store m jaakar hola likhoge to vo hola extension de dega use download karo,uspar click karke aap kisi bhi country ki IP s koi bhi blocked site khol sakte ho,pheew :s :s :s too much hindi,hope u understood :k :k