With autocompletion it will send every part while you type to the search-engine: p, po, por, porn, porns, pornsi, pornsit, pornsite, pornsite., pornsite.c ohhh,

With autocompletion it will send every part while you type to the search-engine: p, po, por, porn, porns, pornsi, pornsit, pornsite, pornsite., pornsite.c ohhh, the user meant a URL, I'll stop sending it to the searchengine provider.