On this page
Google writes "Double-check that your pages are available and clean"
It suggests using Wget or Curl. How do you use Wget?
I got as far as here
which says to download Wget go here
http://ftp.gnu.org/gnu/wget/ whicj is a long list .
How do I download it? Once it's downloaded, how do I run it?
Do I take it from your confusion that you're a Windows user? If so, then you want this download page:
However, it appears to be a command-line tool, and I'm not familiar with Windows command line, so if you need further help, hopefully somebody else can offer that.