Knowledge Syndication and Google 404s?

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Just wondering if anyone else has come across an issue with embedding the Knowledge Syndication module in 3rd party sites and getting large volumes of 404 reports from Google.

On the Vodafone Community, I've embedded the contextual module so that when someone asks a question, it queries the KB for relevant FAQs. Most of the time no issues as keywords in question title will generally pull back results. However, in the last 3-4 months, I've noticed Google reporting increasing volumes of 404 errors where a customer's question doesn't pull back any FAQs but Google somehow treats the non-page as a 404 error for my Help sub-domain?