Thursday, October 21, 2010

Patent analysis: how search engines treat inbound links

Back to our newsletter archive

Axandra news archive: 22 July 2008

Welcome to the latest issue of the Search Engine Facts newsletter.

This week, we're taking a look at the new ranking patent that has been granted to Yahoo. This patent can help you to better understand how to get higher rankings on Yahoo and Google.

In the news: Google has over 75% of the US ad market, the Google toolbar does not help you to get indexed, information about web spam and more.

Table of contents:

We hope that you enjoy this newsletter and that it helps you to get more out of your website. Please pass this newsletter on to your friends.

Best regards,
Andre Voget, Johannes Selbach, Axandra CEO

1. Patent analysis: how search engines deal with inbound links

This month, Yahoo was granted a patent that describes how link texts may be used to increase the relevancy ranking of a web page. Although the patent was filed in 2002, it provides interesting details about how search engines can use link texts.

Why are link texts important?

All major search engines pay close attention to the text that is used in links pointing to web pages. A web page might be considered more relevant to a search term if the search term not only appears on the web page but is also used in the text of the link that points to the page.

Web pages can even get high rankings for a search term if they don't contain that search term. It's enough that many websites link to the page with the search term in the link text. This has been demonstrated with several Google bombs.

How do search engines treat link texts?

While it is clear that link texts are very important for search engines, it's not clear how much weight search engines assign to a link text when they index a page. Are some link texts more important than others?

The patent indicates that link texts are broken into parts, called tokens:

Once an anchortext phrase is identified, it is converted into a set of tokens. For example, page 306 contains the phrase "best Louis Armstrong site" pointing to page 200. The tokenization produces the following tokens:

Trumpet"Best Louis Armstrong site""Louis Armstrong""Louis""Armstrong""Best""Best Louis""Best Armstrong""Best site"

The search engine algorithm calculates a weight for each of these tokens. If the weight exceeds a threshold, the linked web page may be indexed under that token.

How do search engines calculate the weight?

Search engines consider how often each word or word sequence can be found in link texts pointing to a particular page and how often the token appears in the index.

Search engines might assign the greatest importance to words that appear the least frequently in the search index. The reason for that is that those words are often more specifically related to the searched topic.

In addition, a token that appears very often in link texts that point to a special web page could be given higher weight. Tokens that appear very frequently in the search index ("site" or "best") might be discounted because they are not relevant to the special topic.

What does this mean to your website?

All major search engines use this method to rank web pages. If you want to get high rankings on search engines, you must make sure that your web site has good inbound links with the right link texts.

Optimized web pages are important to tell search engines that your website is relevant to your keywords. Good inbound links with the right link texts will enforce the relevancy of your pages for your keywords.

What you have to do to get high rankings on Yahoo and Google

Optimize your web pages for your keywords. While it is possible to get high rankings for a keyword if you have enough inbound links that contain that keyword, it is much easier to get high rankings for a special keyword if your web page has been optimized for that keyword. Try to get as many inbound links as possible. The links to your website should use your targeted keywords in the link text. Do not use the exactly same text over and over. Vary your link texts and use related but different expressions for the links to your site.

IBP's link builder can help you to get targeted links from related websites, Internet directories and blogs.

The Yahoo patent confirms the methods that modern search engines use to rank web pages. If you follow the tips and tricks above, your website will get the best possible rankings on Yahoo, Google and other major search engines.

Back to table of contents - Visit Axandra.com

2. Search engine news and articles of the week

Google has over 75% of US search ad market

Google Market Share "Google maintained its 77.4% share of US search marketing dollars, while Yahoo captured 17.8% of spending and Microsoft Live Search maintained its 4.8% share.

Microsoft Live Search and Yahoo Search still have good ROI in comparison to Google, which makes them essential marketplaces for advertisers that need to meet their increasingly scrutinized revenue targets."

Google's Matt Cutts: the Google toolbar does not help indexing

"Sometimes people think that the Google Toolbar led to Google indexing a page. [...] if Ken Simpson is implying that the Google Toolbar led to these urls being crawled, then he’s mistaken.

Both Philipp Lenssen and Google OS did controlled experiments by visiting unlinked deep pages with the toolbar, and both concluded that the toolbar did not lead to those urls being indexed."

Video: Google's Matt Cutts talks about web spam

"Matt Cutts, head of the webspam team at Google, speaks about Webmaster Central, his first encounter with spam, and challenges for search engines in the future."

Why Google slows down acquired companies

Slow down"Google had acquired Jotspot some 16 months earlier, during which time Jot was only available to existing customers and closed to new signups. [...] Looking through the list of companies that Google has acquired, Jotspot would be considered lucky as many others have died, stalled or lost out to competitors because of the acquisition process."

Google faces another click fraud suit

"Google has been hit with a second lawsuit for fraud stemming from its parked domains program, which serves ads on otherwise empty Web pages. [...] The company said in its lawsuit that it had been charged for clicks from parked domains 'that had little relation to its business.'"

Search engine newslets

Google study: search marketing increases brand value.Google deliberately sells fewer ads — and may have gone too far. Google to acquire Russian context ads service Begun.Yahoo announces settlement with Carl Icahn.Google 'UK's top consumer brand'.New Google search interface looks more useful - see screenshots.Search featured: Guy Kawasaki.Google anti-gravity ray is fading.AdWords Editor service release for Windows and Mac.Back to table of contents - Visit Axandra.com

The Search Engine Facts newsletter is free. Please recommend it to someone you know.

You may publish one of the articles above on your Web site. However, you must not change the contents in any way. Also, you must keep all links and you must add the following two lines with a link to www.Axandra.com: "Copyright by Axandra.com. Web site promotion software."

All product names, copyrights and trademarks mentioned in this newsletter are owned by their respective trademark and copyright holders.

Back issues:
http://www.free-seo-news.com

Copyright © 2008 Axandra GmbH

Back to our newsletter archive RSS feed for weekly search engine ranking facts


View the original article here

No comments:

Post a Comment