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We have two eCommerce sites. Both the sites can broadly be divided into 3 pages 1. Home Page. 2. Detail Page. 3 Category Pages (Altogether our site has approx 3 Million pages each) These are the site URLs http://bit.ly/9tRZIi - This is targeted for USA  Audience http://bit.ly/P8MxPR - This is targeted for UK audience The .com domain which was launched earlier in 2011 is doing okay with decent organic traffic Precautions Taken: To avoid content being duplicate on both the sites we are using: a. Geo-targeting through Google webmaster tools b. rel=alternate tag on printsasia.co.uk Problem 1. The .co.uk domain which was launched in May 2012 started gaining organic traffic slowly but then suddenly dropped to almost 0 after September 18. 2. When we use operator site:printsasia.co.uk and apply a filter on past week/month we don't see any result. While when same operator used for "any time" we see some results. 3. According to webmaster tool, Google has indexed 95% of our URLs in the sitemap Our concern: Is our UK site penalized for some reasons? If yes, what could be the possible reason(s) for this penalty and possible steps to get out of it? Would request if experts here can review our site and help us.

We have e-commerce site selling books. Besides basic information on books, we have content for “About the book” , “Editorial Reviews”, “About the author” etc. But the content in all these section are duplicate and are available on all sites selling similar  books. Our question is: 1.Should we worry about the content being duplicate?2.If yes, then will it by a good idea to hide this duplicate content using javascript or iframe?

We have 2 English language bookselling websites targeted for USA and UK audience with some content variations but 60%-70% of the content on site remains the same. The site is hosted in USA. One is hosted on brandname.co.uk (for United Kingdom) and one is on brandname.com(For United States) The precautions that we have already taken to save it from being marked duplicates are: used rel=alternate element for all product detail pages currency in both the sites are different that is GBP and USD Geotarget settings done for USA and UK respectively through webmaster tools Launched backlink campaign to gain from local sites and directory respectively have tried to differentiate the product by using different product specific terms like Publishing Year: vis a vis published in: Author Vis a vis Written by Format vis a vis binding type Add to cart vis a vis add to basket and so on What remains the same: 1. Product detail pageTitle 2. Product detail page Meta Description 3. Product Name- That is Title of the book which cannot be changed anyways 4. About the product text –The memo or “About the Book” that comes along with the book and is same across each booksellers site. This is impossible to be differentiated as the database have more than 3 Million books brandname.com which is older (2 Yrs) of the two  has traffic around 2500-3000 daily visits while the brandname.co.uk which is 5 months old has 150-200 daily visitors. Both sites have around 4 Million pages. Need suggestions what are we doing wrong and what extra can be done to boost organic traffic?

One of my clients has english language websites targeted for USA and UK audience with some content variations but60%-70% of the content on site remains the same. The site is hosted in USA. One is hosted on brandname.co.uk and one is on brandname.com. The precuations that we have already taken to save it from being marked duplicates are: 1. used rel=alternate element for all product detail pages2. currency in both the sites are different that is GBP and USD3. have tried to differenttate the product by using different product specific terms like Publishing Year: vis a vis published in:Author Vis a vis Written byFormat vis a vis binding type Add to cart vis a vis add to basket and so on What remains the same: 1. Title structure 2. Description 3. Product Name 4. About the product text

For some reason we wanted to change the default page of my site from example.com to example.com/default.aspx. We will be using 301 redirection to get the back link benefits. Do we need to make any changes in webmaster tool and sitemap too??

We noticed that our website is accessible on: http://www.example.com and https://www.example.com Both the versions have page rank of 4. Though on https version we have added canonical tag indicating http:// version as preferred. Is this fine or we need to use 301 redirect and let the site be accessible only on http:// version??

We have multilingual eCommerce websites with some content variations but majority of the content remains the same We have used rel=alternate hreflang on corresponding ccTLDs respective countries. for example on example.com -which is the oldest of these sites- we have used Now should we also use link rel="canonical" href="example.com" on all ccTLDs? What are the advantages and disadvantages of using it?

We have multilingual websites with some content variations but 60% of the content on site remains the same. Is it still advisable to use:rel=alternate hreflang option on ccTLDs  when ccTLDs are in itself strong signal for Google to display result in respective countries 1. example.com 2. example.co.uk 3. example.co.jp 4. example.de