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Google
Add URL:
You can submit your site to Google here,
http://www.google.com/addurl/ and probably your site
will be indexed in around 1-2 months.
Please keep in mind that Google may ignore your
submission request for a long time. Even in case it
happens to crawl your site, it may not actually index it
if there are no links pointing to it. However, if Google
finds your site by following the links from other pages
that have already been indexed and are regularly
re-spidered, all chances are that you will be included
without any submission. These chances are much higher if
Google finds your site by reading a directory listing,
such as DMOZ (www.dmoz.org).
So, you can submit your site and it may help but
links are the best way to get indexed.
In the past, Google basically performed monthly
updates called among the experts "Google
Dance". At the beginning of the month, a deep
crawl of the web took place, then a couple of weeks the
Page Rank for the retrieved pages was calculated, and at
the end of the month the index database was finally
updated. These days, Google maintains a database which
is updated continuously. The "Dances" still
take place from time to time but only when they need to
make major changes to their algorithm. For example,
their Dance in November 2003 (known as Google Florida
Update) was actually their first for about six months.
In January 2004, Google started another dance (Austin
Update) where pages that had disappeared during the "Florida"
showed up again. Instead, many pages that hadn't
disappeared first time were now gone.
In February 2004 Google updated once more and things
settled down. Most people's lost pages came back and
although the results were rather different to those
shown before Florida , at least pages didn't seem to be
gone for no reason.
At the moment, Google claims to have a little more
than 8,000,000,000 pages in its index. Constantly this
engine adds new pages to the index database - usually it
takes around two days to list a new page after the
Googlebot (Google's spider) has crawled it. Results on
Google tend to shift on a weekly basis, probably because
they are running mini updates. That may be one of the
reasons of differences between the results when you're
checking your ranking with the help of an automated tool
and then look at the results in your browser.
Google has lots of the so-called "regional"
branches, such as "Google
Australia", "Google Canada"
etc. These are modifications of their index database
stored on servers located in the corresponding regions.
They are meant to further adjust search results to
searcher's needs: when you're searching, Google would
detect your IP address (and thus approximate location)
and feed the results from the most appropriate index
database.
During the "Google Dances" the results on
different local googles may strikingly differ.
Submission to the "Main Google" will list
your site in all its regional branches - after Google
indexes you, of course.
Now, Google has a number of crawlers to do the
spidering. They all have the name "GoogleBot"
but they come from a number of different IP addresses.
You can see if Google has visited your site by looking
through your server logs: just find the IP address
matching 64.68.xx.xx (alternatively, a domain address
crawl2.googlebot.com or
crawl3.googlebot.com) and
most probably you will see the user-agent defined as
GoogleBot.
Google is by far the most important search engine.
Apart from their own site receiving 350 million searches
per day, they also provide the search results for AOL
Search, ICQ Search, and Netscape Search (amongst
others). For this reason, most optimizers first focus on
Google. Generally, this makes sense.
How to optimize for Google
-
Google Add URL
Most important for Google are three factors: Page
Rank, link anchor text and semantics.
Page
Rank is an absolute value which is
regularly calculated by Google for each page it has in
its index. Later, we will give you a detailed
description, now it's just important to know that the
number of links you've got from other sites outside your
domain matters greatly, as well as the link quality. The
latter means that in order to give you some weight, the
sites linking to yours must themselves have high Page
Rank, be content-rich and regularly updated.
MiniRank / Local Rank
is a modification of the Page Rank based on the link
structure of your single site only. Since search engines
rank pages, not sites, certain pages of your site will
rank higher for the given keywords that the others.
Besides, Local Rank has a significant influence on the
general Page Rank.
Anchor text is the text
of the links that point to your pages. For instance, if
someone links to you with the words "see
this great web site", this is kind of a useless
link. However, let's say you sell car tires and the link
from another site to yours goes like "car
tires from leading brands", such link will boost
your rank when someone searches car tires on Google.
Semantics is the new
factor that appears to have made the biggest difference
to the results. This term refers to the meaning of words
and their relationships. Google bought a company called
Applied Semantics back in 2003 and has been using the
technology for their AdSense contextual advertising
program. According to the principles of applied
semantics, the crawler attempts to define which words
mean the same thing and which ones are always used
together.
For example, if there are a certain
number of pages in Google's index saying that an
executive desk is a piece of office furniture, Google
associates the two phrases . After this, a page about
executive desks can not mention "Office furniture" but
still show up in a search for those keywords. On the
other side, a page that mentions "executive desk" will
rank better if it does mention "Office furniture".
Now, there are two other terms related to Google's
way to rank pages: Hilltop and Sandbox.
Hilltop is an algorithm
that was created in 1999. Basically, it looks at the
relationship between the "Expert" and "Authority"
pages. An "Expert" is a page
that links to lots of other relevant documents. An "Authority"
is a page that has links pointing to it from the
"Expert" pages.
In theory, Google would find "Expert" pages
and then the pages that they link to would rank well.
Pages on sites like Yahoo, DMOZ, College sites and
library sites can be considered experts.
Sandbox
refers to an algorithm which detects how old your page
is and how long ago it has been updated. Usually pages
with stale content tend to gradually slip down the
result list, while the new pages just crawled initially
have higher positions than they would if based on Page
Rank only. In other words, Google considers new pages
have more relevant and up-to-date content and gives them
a certain advantage over the stale pages. That is,
constantly updating your pages can help keep them up the
list.
 Google Add URL
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