Big increase in Searchfeed traffic

and it's converting well?

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We have advertised with searchfeed for quite a while and do quite well with them.

Over the last week the traffic we get has increased by about 350%. Normally when this kind of increase happens with a second tier search engine the traffic is all click fraud and we stop advertising with them.

But oddly the traffic seems quite good and is converting well for us. Has anybody else experienced this? Most of the traffic is coming from getfound.com which I think has something to do with Miva (who we don't advertise with because of previous problems).

Although I'm happy about the increase in traffic and that it's converting I'm still a bit concerned about it.

Any thoughts?

Thanks