Most Instant Messengers offer a function to hide your real status from your contacts and buddies by showing a fake offline status.This is often called going invisible.
What it means is that you change your status to offline for all contacts and other users of the software program or client, but are not really offline.
You can still receive messages and message people. This is often done to avoid being interrupted while you are working on something, but can also be useful if you do not want to respond to messages that you receive at that point in time.
There is however a way to find out if your Yahoo contact or buddy is really offline, or only faking the offline status by going invisible. It basically lets you detect if they use the invisible mode in Yahoo Messenger.
For that, you do not even need to have Yahoo Messenger installed on your system, as you can check this information online.
Detect Invisible is one of the services that you can use for that purpose. Just load the website of the service, and enter the Yahoo ID of the user that you want to look up.
It takes a moment and after that, you receive the current status of that user, which can either be offline or online. If the user is listed as online, but shown as offline in Yahoo Messenger, then you now that the user is making use of the program's invisible mode feature to stay undetected.
The service keeps a record of the buddies that you have checked in the past using a cookie. For as long as it is set, you can simply click on a past ID that you checked to check it again without having to enter it again on the site.
What may also be interesting to some of you is that the service provides you with options to check the account name on Facebook or HI5 as well.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.