How do you know if someone is invisible to everyone on yahoo messenger?

there's this website.. www.invisible.ir I found it while surfing in the net. Hope this solves your problem!

I haven't tried this one yet. See if this helps: Yahoo messenger allows stealth mode using which you can set your online status as “offline” even when you are logged in to yahoo messenger. People use it to avoid chat when they are busy or to block out spam messages. 1. But there is a hack which allows you to see whether someone is really offline or not. The easiest way is to directly acess the online status image using the URL - http://opi.yahoo.com/online?u=userid&m=g&t=2 (replace userid with the actual user id). 2. The second way is to start a voice chat with the userid you want to check. If you don’t get an error it indicates that the user is indeed online, but in invisible mode. This works only in previous versions of Yahoo messenger. 3. The only method which seems to work on latest versions of Yahoo messenger is the IMEnviornment hack. First send a message to the user id and then immediately change the IMEnviorment. Now if the guy is really offline, you will get a message “waiting for your friend to load the theme” message. If he is online, you will just get a blank page! I also found this site, wherein you can download a tool/program to see if your friends are online or not. I haven't tried this too, so be cautious when downloading. Check out the source for the links. :)

if they are invisible, they are invisible to everyone (or selected ppl) on their messenger list, but visible to everyone else. you would have to use a login that is not on their messenger list, then look to see if they were online

Here is a program you can use to see if any of your friends are really online when they are showing invisible it's called Buddy Spy, you can get it here > http://www.buddy-spy.com/ hope this helps

you don't.... thats kinda the point. the only way to find out is to IM them and then see if they respond... if you knew... what would be the point of the invisible button?

You cant see the person once their invisible.

j