Google Dance is dead?

topics: google update, google dance, google search engines optimization

What is Google Dance? For many of you readers this is not a secret: it's so called "Google Dance" the period when google rebuilds/updates its database.

It used to take place nearly 10 times in a year (or every 36 days), and lasted 3-5 days. During it, results appeared unstable, as Google were aligning its Data Centers (listed below).

During its so called dance, Google updates its cache, re-calculates each site's pagerank value, inserts in its index new sites, deleting websites that no longer exist.

Since August 2003 google rebuilds its index constantly, with major updates on the end of the week (between sunday and monday). "Dancing continuosly" involves minor algorythm adjustments and less dramatic index rebuildings.
There's still a period with more valuable changes in serp's, when Google the Googlebot will revisit each site, count inbound/outbound links, and the weight those links have (for pagerank calculation purposes).

So Google Dance is not dead? Yes, maybe it's not how we used to know, but it cannot die. Google has 10 data centers*, sharing 10,000 servers and the updates to the archive that happen during the month have to get transferred to main archive somehow: because of the continuos updating this is just less clear than before...

plus

www-gv.google.com (08/2003)
www-gv2.google.com (09/2003).
www-kr.google.com (10/2003)

notice that querying directly IP address will cause you to be redirected to main url www.google.com