text: Its called an online checkers which can be separate or you can find that are part of some booters.\n\nAnother easy way is to log into your yahoo email account that hes added to on your friends list and up the top where it says mail, addresses, calendar etc click on the addresses tab and if hes online it will show his little yellow smiley face lit up beside his name ;) even if hes logged in invisible or has you on stealth settings. \n\nIf you have to go to these lengths obviously not much trust, is it really worth it??\n\nGood Luck