Page keeps dropping

[TimHolmes]

Hello All,

I have a page (http://www.caravanguard.co.uk/touring-caravan-insurance/) we have seen it drop a bit over recent months and now we have been appearing low on page two (Google UK) for the term "Caravan Insurance".

Now I do not expect to rank above some of the big players in our market and the aggregators, but we do feel we have good content and have tried to act as white as we can in terms of SEO, link building and alike, but we are still slipping.

My main issue is this - one minute we have the link appearing in the serps and then the next it drops from the serps altogether. At this point i often resubmit for indexing in webmaster tools and a few minutes later its back.... is this just likley something I am seeing local to me due search becoming more personal (I have toggle hide private results too) or is there a cause to its sudden disappearance and reappearance?

Any insight would be greatly appreciated.

[danwebman]

I had this once, I checked a paragraph from our site and found an American firm using our content. Our intellectual Property Management company Demys got involved and it was quickly resolved.

Other issues I have had is duplicate content on four site, check for duplicate urls which resolve to the same page using Screaming frog.