golike.usは安全ですか？

Although this site may be annoying while on facebook because it clogs up your homepage with lots of links, it is in no way harmful and will not and can not give you viruses or malware. Sites dedicated just to "liking" things are pointless and dumb, but they are not malicious and for the most part will not do anything to your computer. I'm sure there may be a site that will, but simply liking something can't. If you were to go on one of these sites and click on an unsafe link or download a file, then you are taking a risk of getting a virus as you would with just about any of website that you don't completely trust. So just stick to sites that are trustworthy and legitimate.