check printing

Check that a server is sending the correct mime type for any given URL.

check your PC system to find any spyware

check your PC system to find any toolbar

Check suspicious e-mails and protect your data from phishing attacks.

Check and repair your MP3 audio files.

Check GSM operator for given MSISDN in Poland

Check the downloaded Shorten (.shn) files against an .md5 file.

Check the average speed of your pages

Check multiple Google data centers to obtain PageRank values in real time

Check runing programes if safe to run or not.