我想問下呢,如果係大陸上網,係上到國際網既,咁如果我上一個網址係香港既網址,由香港睇d字就係繁體字,係如果係大陸睇會唔會

May be 會亂碼, depends on your web browser setting. Make sure the encoding in your browser is set to Big5.
IE browser: View -> Encoding -> Chinese Traditional (Big5)
FF browser: View -> Character Encoding -> Chinese Traditional (Big5)

80%you can 睇香港既網,20%會亂碼, but it was slowly!