Get Duplicate Page content for same page with different extension ?

[CommercePundit]

I have added a campaign like "Bannerbuzz" in SEOMOZ Pro account and before 2 or 3 days i got errors related to duplicate page content  . they are showing me same page with different extension. As i mentioned below

http://www.bannerbuzz.com/outdoor-vinyl-banners.html
&
http://www.bannerbuzz.com/outdoor_vinyl_banner.php

We checked our whole source files but we didn't define php related urls in our source code. we want to catch only our .html related urls.

so, Can you please guide us to solve this issue ?

Thanks

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| http://www.bannerbuzz.com/outdoor-vinyl-banners.html |

[Matthew_Edgar]

Hi,

There are a few different ways to answer your question...

First, those pages are technically duplicated. If you go to either URL they return the same content with a status 200. That should be easy enough for your programmers to correct. They need to detect if the URL contains "php"  and, if so, 301 redirect to the ".html" version. Remember though that it isn't just the extension that is different. In the HTML version you have dashes and underscores in the PHP version. However...

Second, the real question for duplicate content isn't "do I have it?" but "where are the multiple URLs?" You want to know how SEOmoz found that ".php" version if you haven't linked to it internally. The way to do that is to download the CSV file in the upper right hand corner of the duplicate content page. Column L (the duplicate page content column) tells you "TRUE" if that page is duplicated and column AM contains the referral. You want to check that referral source to see how they found the link.

Finally, check to see if Google and Bing have indexed these PHP pages. Also, check to see if you've gotten traffic to the PHP pages. If they haven't been indexed and you don't have any traffic, you probably are okay. But, I'd still investigate to find the source and then redirect the PHP version to the HTML version. (Edit: check external links to...is anybody else linking to these ".php" pages?)

I hope that helps. Thanks,
Matthew