After some day to be suspended cause of Yahoo Server stopped supporting old YMSG version, we tried out best to up load the bot to the newest YMSG version and to day, everything look ok.
The service now run very fast and reliable
You can check if a person is online/offline or invisible without added her/his nick to your buddy list.
You also do not have to install any software in to your computer.
Just open your browser, go to http://ymlook.com (very short url, huh?) type the yahoo id you want to check and press enter!
Is this useful service for you? It free, fast and safe. Please invite this website to your friends if you think it useful for everyone.
Just copy this sentence below and send to all list
ymlook.com: the fastest yahoo invisible status checker. Check it out and send to your friend if you find it usefull. Thanks.