This is page for check all open ports
of some IP or domain name. It's high speed real time scan open ports
online free tool that have NO LIMITS for scanning range.
But it have some specific, scaning range 1-49000 is not forbidden but not recommended, because it can bring browser to some freezing or incorrect internet working. Pls read recommendations near scanning form.
After tool wroking success - possible situation when browser showing that continue going some download process, it's normal and linked with connetions that continue working more time that timeout set,
it's only one way to stop it - reload page with using "Reload page, stop scanning" link (all results of scanning will be lost). This tool using scanning through "image", there is no other known technology
to do it from user's browser. This tool tested on browsers - FireFox 3, FireFox 3.5, Opera 9, and InternetExplorer 7 it is some chance that it can be not camptable with some other browsers.