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James, Thanks. I do often find significant differences in the 'www' data vs. the 'non-www', but I also understand that the Google Juice can flow from one to the other - but I think it has to do with how the 'A' record is set. What's the optimum here? How SHOULD an 'A' Record be set? Is there a difference if I want to maximize results in search? Should it be different if I want to maximize SEM? Inquiring Minds Want to Know... (Rita Skeeter)

Hi Steven! We have always had separate API plans. One change for free access is we no longer offer a higher rate limit for Pro subscriptions. So free access will only be limited to 1 request every 10 seconds.