Can you use the Google Safe Browsing API without downloading and caching the entire list?

Question

I'm just getting started with the Google Safe Browsing API to verify destination URLs for my URL shortening service http://lin.cr. Do I have to download the entire list of suspicious sites or is there a way I can run a check only when I need it?

I don't have a crazy amount of traffic on the site, so I think it's easier to do it live.

Answer 1

I am not sure that doing any kind of "live" stuff would be OK, considering the Acceptable Usage in Clients part of the documentation (quoting a few sentences) :

The second update request should happen between 15-30 minutes later. After that, each update should occur once every 25-30 minutes.

And the paragraph after that one is pretty interesting, too :

To help maintain a high quality of service, it may be necessary for the update server to ask the client to make less frequent requests.

Considering these, I would not do any king of "live" request : I'm afraid google wouldn't quite like it...