how about my domani already appear in keyword but disappear in just few days or even hours?yeah looks like google is doing some kind of serp recalculation or minor volatility pass. when results disappear and reappear on refresh, it is usually datacenter syncing or live testing behavior.
it seems so, there are lot and i mean really lot of mass reporting from competitors, especially lumendatabase from dmca issuesThere's a lot a churn at the moment in the areas I track. Anecdotally it also seems to corroborate with the mass spam reporting that seems to have become very popular recently. Everyone just seems to be reporting all their competitors.