Duplicate content, which seems not to be duplicate :S

[Raymo]

After crawling I am used to getting a lot of duplicate content messages in Moz, which are High Priority. I do not know what to do with them, since I believe we tackled all the issues. Main point being the advise to put in a link rel=canonical. An example of a page that accordeing to the report has a duplicate. I do not see how. Can you help with that?

http://www.beat-it.nl/4y6hctr24x7wdmr-ml350-p-ic-procaresvc.html

duplicate sample

http://www.beat-it.nl/modu-hp-a5800-acm-for-64-256-aps.html

[LesleyPaone]

It is seen as duplicate content because of the ratio of text between the two pages is very high. You only have 10 -20 words for your product descriptions, but you have a couple hundred words of on page text that is the same on each page.

[Raymo]

This helps. Thanks a lot. But doesn't any e-commerce website has to deal with this? What is the min. text ratio to not be seen as duplicate content? Finally; is there a tool to easily measure a pass/fail on this?

[LesleyPaone]

I would shoot for under 80% of the same content. Yes, it is something that a lot of ecommerce sites deal with, but there are ways around it. Are you using a feed by chance?

[Raymo]

OK. Yes we do.

[LesleyPaone]

You are going  to have a hard time getting your pages indexed with a feed, there is no telling how many other companies use the feed with the same descriptions. The best solution is to write your own custom content. Or at least try to add some to it.

[Raymo]

Okay. Thanks for the help. Will do that. Not for all pages (that's why we have a feed; around 100K products), but at least for the items that matter to us...