What to do with old website still online & duplicate content

[cheaptubes]

I launched a new wordpress site at www.cheaptubes.com in Sept. I haven't taken the old one down yet, it is still at http://65.61.43.25/  The reason I left it up is I wanted to make sure everything was properly redirected 1st.  Some pages and images are still ranking but most point to the new site. When I search for carbon nanotubes pricelist and look in images I see some of our images on the old site are still ranking there https://www.google.com/imgres?imgurl=http://65.61.43.25/images/single-walled-nanotubes.1.gif&imgrefurl=http://65.61.43.25/ohfunctionalizedcnts.htm&h=359&w=451&tbnid=HKlL84A_9X0jGM:&docid=N2wdCg7rSQBsjM&ei=-A2qVqThL4WxeKCyjdAM&tbm=isch&ved=0ahUKEwikvcWdxczKAhWFGB4KHSBZA8oQMwhJKCIwIg

I guess I can put WP on the old server and do some 301s from there but I'm not sure if that is best or if I should just kill it off entirely? My rankings took a hit on Nov 15th and business has been bad ever since so I'm trying to figure this out quickly.

Moz.com and onpage.org both say my site has duplicate content on several pages. I've looked at the content and it isn't duplicate. How can I figure this out? Google likely see's it the same way. These aren't duplicate pages, they are different products. I even searched my product pages to make sure I didn't have 2 of each in there and I don't.  With Moz its mostly product tags it sees as duplicate but the products are completely different

[cheaptubes]

Thanks Dirk - I only wanted to keep it short term. As long as all link juice is passed to new site then I can just kill it off.  I wanted to redirect specific pages because the new sites page names are different.  That would be the only reason to install WP, to facilitate redirects. The old site is so old it is done in frontpage so there is no htaccess file.  I see you did find a piece of dup content but the errors have been there for months.  I just changed that page name last week and apparently didn't 301 it.   I think the strange url you found might be part of the problem, perhaps they are just bad relative links. I will try screaming frog.  Thank you for your help.

[DirkC]

I do understand that you want to keep a copy of your old site - but don't really understand why you allow this site to be indexed by Google? (robots.txt allows full indexing).

The reason you kept it seems a bit off - redirects are made on domainnames. So keeping the site accessible under the IP address will not help you to check if the redirects are properly working.

Why would you need to install Wordpress on the old server - redirects are made in the htacess file. Absolutely no need to do this via Wordpress. Check here or just google it (if you also changed the url's the redirect links might be more complicated than the example behind the link).

Duplicate content - not too difficult to spot:

Examples:

https://www.cheaptubes.com/product-category/industrial-carbon-nanotubes-products/conductive-nanotubes-composite-additive/
https://www.cheaptubes.com/product-category/industrial-grade-carbon-nanotubes/conductive-nanotubes-composite-additive/

seem quite similar to me.

Some pages are also a bit strange - check this url

https://www.cheaptubes.com/product-category/functionalized-carbon-nanotubes/www.cheaptubes.com/product-category/functionalized-carbon-nanotubes/fluorine-functionalized-carbon-nanotubes/ - link is coming from https://www.cheaptubes.com/product-category/functionalized-carbon-nanotubes/ - I guess caused by a wrong formatted relative link.

Try running Screaming Frog to check these issues - it's an incredible tool to help you with issues like this.

Edit: you use canonicals on the strange url's above so they shouldn't really count as duplicates

Dirk