Free site mirror?
Some years back, someone was offering a neat service. If you had a high-traffic file on your website, you could create a link through this service — say, http://www.foo.com/mirror?url=http://www.mcgees.org/some.file. The first five (or whatever) times that someone tried to download it, foo.com passed the request on to mcgees.org. But on the sixth or subsequent times, foo.com would make a copy of the file and they would serve it for you. Anyone remember who offered this service, and anyone know whether it’s still offered? Maybe it had something to do with archive.org?
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