Google dance - The index update of google
Skill Level: Novice
Article by: eFactory

The name "Google Dance" is often used to describe the index update of the Google search engine. Google's index update occurs on average once per month. It can be identified by significant movement in search results and especially by Google's cache of all indexed pages reflecting the status of Google's last spidering.

But the update does not proceed as a switch from one index to another at one point in time. In fact, it takes several days to complete the index update. During this period, the old and the new index alternate on www.google.com. At an early stage, the results from the new index occur sporadically. But later on, they appear more frequently. Google dances.

The start dates of previous Google Dances have been compiled by WebmasterWorld's administrator Brett Tabke. The previous Google Dance took place from 03/07/2003 to 03/12/2003. The next Google Dance is expected to take place by the end of March / early April and we will report about it. But mainly, the reasons for the Google Dance shall be presented here.

Contents

• The Technical Background of the Google Dance
• Google Dance and DNS
• IP Addresses and Domains of Google's Data Centers
• The Google Dance Test Domains www2 and www3
• The New PageRank Values during the Google Dance

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