webmasters have observed significant ranking changes in Google's
search engine result pages. It seems that Google has tweaked its algorithm
again or that it is still fine-tuning the way it ranks web pages for its
next algorithm update. What does this mean to webmasters? With an
algorithm data change, will my results listings change?
What has happened?
Google uses more than 100,000 servers to store its data. These
servers build-the Google data centers. Depending on the time and the
place from which you access Google, Google will redirect you to
different data centers.
For example, you might be redirected to the
184.108.40.206 or to
220.127.116.11 when you enter www.Google.com in your web browser.
Both IP addresses reflect different data centers in which Google will
search for your query (the IP addresses in this example were operational
on 29 March 2005, they can change at any time).
There are very many different Google data centers and each data
center has its own index. Normally, the contents of the different data
centers is about the same.
Webmasters who observe several data centers have found out that there
are currently three types of data centers. Depending on which data
center group you use for your search query, you'll get different
What does that mean?
It seems that Google uses different algorithms in these data centers
and that Google uses some data centers to test algorithm changes. Using
only a few data centers allows Google to test algorithm changes without
affecting all search results.
The three different data center groups that have been observed by
some webmasters probably reflect the test of different algorithms that
affect the same ranking factor.
Data center group one (the biggest) uses the current algorithm, group
two (a small group) tests algorithm change A, group three (another small
group) tests algorithm change B. That way, Google can test the best way
to improve its algorithm without affecting all search results.
What does this mean for your web site?
At the moment, this means nothing for your web site. The changes are
only tested in some data centers. If you use Google's normal web site
and if you don't access Google's data centers directly, chances are that
you haven't been affected by these testing changes.
To optimize your web pages for high Google rankings, take a look at
the web pages that currently have top rankings on Google and try to
find out what these pages have done to get these rankings. As these
pages have top 10 rankings, they must have done something right!
IBP's Top 10 Optimizer can help you to
do this quickly and easily. IBP's advice is always based on the
latest search engine algorithms.
Don't go mad about Google. Although Google is a very important search
engine, you'll also get targeted visitors from Yahoo, MSN Search, Ask
Jeeves and other search engines. Optimizing your site for more than one
search engine makes you less dependent on a single player.
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