Google’s Ranking methodology – 9 Important Factors (Official)
Posted by gaja | Posted in Web Design | Posted on 24-03-2010-05-2008
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1. If you want more pages of site to be indexed, then you should have more relevant links
The number of pages that Google indexes from your website is roughly proportional to the PageRank (Google PR) of your website. That means, more pages of your website will be indexed if your website has many inbound links.
Google does not have an indexation cap, i.e. they will index all pages of your website if you have enough inbound links. Remember that the PageRank displayed in Google’s toolbar is different from that Google uses in its ranking algorithm. So, it may not work. Learn the real art.
Hint: Start Indexing
2. Hosting servers can count too..! Slow servers can cause problems
Google’s crawler has only limited time to evaluate each and every site. If Google can only crawl two pages at any given time due to the speed of the server, then Google can set some sort of upper bound on how many pages they will fetch from that host server. This can be a major problem for websites that are hosted on slow or shared servers.
Hint: Host your site with a more Reliable Hosting company
3. Don’t over load your site with same contents everywhere. Duplicate content can cause problems
Imagin we browse through a website and find that most of the pages are duplicates but with different link name, we will drop out the duplicate pages and try to ignore them. That means we give a low priority. Google decides the same way.
As mentioned above, Google will index your web pages based on the PageRank of your pages. If you have duplicate content, some pages of your website will be discarded and you’ll waste ranking opportunities.
If you link from one page to a duplicate page, you can mess up your PageRank. Google also tries to pass the PageRank and other link signals from the duplicate pages to the original page.
If you use the rel=canonical tag on your web pages then the pages needn’t be exact duplicates but they should be conceptual duplicates of the same product, or things that are closely related.
Hint: Always create more and more original content which is relevant
4. A big NO-NO to Affiliate pages
Affiliate pages do not page rankings. If a website is an affiliate website that is very similar to other pages (only with a different logo, etc.) then this page won’t get high rankings.
PageRank power is not passed on when Google detects that it is an affiliate link
5. Though 301 redirects work, do not expect the PageRank to pass on
When you change your domain name, you need to redirect your old pages with a 301 redirect to your new page then the link power will be passed to your new domain name. It works, but the overall power of the links may be decreased. Yes, 301 redirects may not pass the full PageRank.
6. Never have any Low quality pages, which can cause serious problems
Google stamps certain pages in any website as of low value. If there are a large number of low value pages, then it might not crawl quite as many pages from that site.
When Google finds, that a lot of page are having very limited content, it might stop crawling immediately. If you really want to have almost all the pages of your site, then have the relevant contents with lots of text on them.
7. Take necessary care before you distribute your PageRank to other pages
Google does not want you to sculpt your website for PageRank reasons. The best way to pass link power from one page to other pages is to have good website navigation.
Site’s Information architecture, how you make links and its structure appear on a page in a way to get the traffic to the page that you want to popularize. It is really a better way to approach it than trying to do individual sculpting of PageRank on links.
You can distribute that PageRank very carefully between related pages, and use related links straight to your product pages rather than into your navigation. There are brilliant ways to do that without necessarily going towards trying to sculpt PageRank
8. JavaScript navigation looks nice, but Google doesn’t like it
Google use to scan within JavaScript, and would probably look for links. Google has gotten smarter about JavaScript and can execute some JavaScript. But it doesnot mean that Google executes all JavaScript, so there are some conditions in which Google doesn’t JavaScript at all.
More confusing??
Google does have the ability to execute a large fraction of JavaScript but it does it only when it needs or want to.
9. Do not purchase links, Google does not like it.
Google wants to give the most accurate results for the search terms and definitely don’t want advertisements to affect the results.
If you want high rankings on Google, there are various ethical, white-hat SEO methods; that lead to lasting results.
It would be an EXPENSIVE mistake if someone tries to cheat Google.

That was really very informative.
Gud blog