One Keyword, Different Search Results

Occasionally, you may enter the same search string into Google,
one after the other, and receive two different lists of search
results, and a differing number of results found. The odds are good
that this won’t happen too often, though, and the results will only
differ a small percentage. The reason it happens is because Google
is a busy company, and information is constantly changing.

As the Google bots crawl the web, indexing websites here, and
cataloging keywords there, the information they gather is organized
and analyzed, and then updates are “echoed” to the various
datacenters that distribute Google searches. This causes a sort of
ripple effect of search variations between current databases and
updates in progress. As each datacenter receives an update, it’s
numbers and results change to meet the new information, and
differences between two identical search strings arise.

Think of it in terms of a set of encyclopedias. As soon as the new
version comes out, the old one has become a bit outdated, and what is
known about different entries is subject to change drastically from
one version to the next. Each time Google processes the data from a
spider, subtle changes are made throughout the statistics kept by
their databases, and results delivered appear in a different order,
or greater number.

Google is thought have a dozen or so IP addresses that handle the
routing of search queries. It’s both possible and plausible that you
could get as many as three variations on a search using the same
keywords, as updates arrive at some nodes faster than at others. A
variation of this sort could occur with most search engines, should
in fact. Such discrepancies are the user’s guarantee of up-to-date
information processing. Tracking the most relevant and informative
websites is not a task to happens once a day, after all. Many sites
are crawled multiple times a day, according the the value and inbound
links that the site has, the site could be crawled almost hourly.

Article written by SEOnotepad.com