If you have to do things over and over again, it’s a good idea to use a tool to make things easier. Windows is a bit limited (or very - when compared to Linux) when it comes to batch file scripts and “wget” is limited to what it can do right out the box, so I sat down and wrote a few command line tools to help me with some of the website checks that I like to do.
Websites have become popular targets for hackers, who either try to add elements that automatically download “malware” (viruses, etc) or try to add hidden links (SEO hacking) to other websites. Quite often, these kinds of changes are not recognized by the webmaster or website owner. You could wait until a visitor complains to you or you receive a mail from Google for spreading malware (or having hidden links to “bad places”), but that is slow, unreliable and usually too late.