Dating linkdomain online services
However, when I reviewed it on January 12, 2011, there have been significant changes: In spite of the changes since publication, this article still makes for a great historical reference & helps readers understand a variety of approaches that have been used in the search space, both from a business model and a relevancy perspective.This work is licensed under a Creative Commons Attribution 3.0 United States License.
Things that help you rank in one engine could preclude you from ranking in another.Site Explorer to see how well they are indexing your site and which sites link at your site. Being the largest content site on the web makes Yahoo!Certain words in a search query are better at defining the goals of the searcher. for something like "how to SEO " many of the top ranked results will have "how to" and "SEO" in the page titles, which might indicate that Yahoo! In addition to those two forms of paid reviews, Yahoo! run into some inefficiency issues due to being a large internal customer. Shopping was a large link buyer for a period of time while Yahoo!This article is a fairly comprehensive review of search engine relevancy algorithms, published by Aaron Wall on June 13, 2006.While some of the general details have changed, the major themes referenced in this article were still relevant when I reviewed it a year after publishing it.While some machines automatically evolve search relevancy via genetic algorithms each major search engine still has some human input in how relevancy is calculated (at the very least humans write some of the algorithms). Diaz wrote a PDF research paper about Google's biases. For many years they outsourced their search service to other providers, but by the end of 2002 they realized the importance and value of search and started aggressively acquiring search companies. has a boatload of their own content which they frequently reference in the search results.
Originally when I started writing this article I wanted it to be more about search relevancy perhaps from more of an academic type standpoint, but my perspective on search is as one who understands it more from a marketing perspective. Since they have so much of their own content and make money from some commercial organic search results it might make sense for them to bias their search results a bit toward commercial websites.
Using descriptive page titles and page content goes a long way in Yahoo!
In my opinion their results seem to be biased more toward commerce than informational sites, when compared with Google. is pretty good at crawling sites deeply so long as they have sufficient link popularity to get all their pages indexed. may not want to deeply index sites with many variables in the URL string, especially since You can use Yahoo!
While people have looked at search engine ranking factors on a global level I do not think anyone has spent much time comparing and contrasting how different search engines compute their relevancy scores or bias their algorithms.
I think one of the hardest parts of explaining SEO is that the web is such a diverse place where things that make sense in one industry would make no sense in another industry.
MSN has got better at crawling, but I still think Yahoo! It is best to avoid session IDs, sending bots cookies, or using many variables in the URL strings. or Google at crawling deeply through large sites like e or at processing queries for meaning instead of taking them quite so literally, but I do not believe they are as good as Google is at it.