snippet.cgi — as many as 10 at a time in rapid succession…
This is a problem at the web server end, most likely. This meta-Google search link will show you that the problem has existed for a while in many different places. Delve deeper &amp; report back your findings.

Note: The cliftonchilliclub site is mentioned at the Apple Support Communities as a site which triggers the same behavior you are experiencing.

All this being said, I believe the files are harmless.