I just found that use of session ID in ecommerce sites can cause a sitewide duplicate content issue. For example, you may have noticed there are different URls in Google index for your the same product URL:

http://www.yourwebsite.com/file1.html?osCsid=2e1349d6866367e48ec9b6f4a7c665f8
http://www.yourwebsite.com/file1.html?osCsid=2dsdfdsd6866367e48ec9b6f578dsdcxs
http://www.yourwebsite.com/file1.html?osCsid=3dsdsf3dsdfds6367e48ec9b6f4a7csdsf

They all belong to the same file , but containing session ID. When Googlebot visits your site, and your website gives Googlebot session ID. What will happen???

Google sees those new URLs, crawls and indexed it , yet it is already indexed before but using the old session ID Googlebot has.

How to correct this issue:

1. Block session ID using robots.txt.
2. Change all navigation links to permanent and static URLS, especially links to your sitemap.html should be using static ones (no session ID).
3. The XML sitemap you have submitted to Google webmaster tools should not be using session IDs.
4. Once the session ID free is being indexed by GOogle, remove all your indexed session ID URLs using Google webmaster tools URL removal tool.

That’s all folks.

Click here to subscribe to this feed!

Yeah I’m serious, latest study for Top ranking sites reveals that their link pages averages around Page rank of ~0.83 or 1. SEO experts are right from the start, page rank does not play a role in assigning relevance. Long way before SEO’s are used to believe that the higher the page rank of the linking page, the higher will it score in the ranking results. No it is not.

I am highly surprised Until now, there are some sites that do not like to have some sort of partnership with you because the page rank of your page is 0. Well , unlucky for them they miss a link from highly relevant site. Amazed?

Yes, links from directly pages counts a lot. If a site is relevant and trusted, any link will help even if the PR is 0. It is not mean that PR 0 is an irrelevant page. Page rank is not measured in terms of link relevance but more of link quantity.

Much worse ,they depend on Google toolbar measurements which is not the actual and real time measurement.

Recommendations:

1. IF someone says they will place a link on page with PR 0, check first if the page is directly relevant to your topic. And that it will help their readers. If yes , consider that link as it is very valuable.

2. Avoid having partnership with PR obsessed webmasters, these are the greedy and dark side persons in the name of link building.

Click here to subscribe to this feed!