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Google's Matt Cutts has released a number of
videos in which he talks about the way
Google works. One of the videos addresses
previous and future
updates of the Google index. Google
updates parts of its index daily
A large fraction of Google's index is
updated every day as Google crawls the web.
That means that there is always an update
going on.
In addition, Google has algorithms and
data pushes that are going out on a less
frequent basis. The latest were on 27 June,
28 July and 17 August. Unfortunately, Matt
Cutts doesn't reveal any information about
the details of these updates.
Comprehensive info about how Google
crawls and indexes websites.
Click here to visit website
Google's BigDaddy update
BigDaddy was a software infrastructure
upgrade that finished in February. The
BigDaddy update introduced a new way how
they crawl the web.
Supplemental results
This summer, Google also updated their
supplemental results index structure. It was
a complete rewrite and the indexing
infrastructure for the supplemental results
is different from then main indexing
structure.
Another update is on the way
Matt Cutts mentions in the video that
another software infrastructure update is on
the way. The new update should increase the
quality of the search results:
"If we find out that we can improve
quality by changing our algorithms or data
or infrastructure, or anything else, we’re
going to make that change.
The best SEO's in my experience are
the ones that can adapt, and that say 'OK,
this is the way the algorithms look right
now to me, if I want to make a good site
that will do well in search engines, this is
the direction I want to head in next.'"
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