http://www.co-internet.net/net/articles/searchengineindexflux.txt.html Search Engine Index Flux and Rank Checking ------------------------------------------------------ by Ralph Tegtmeier ------------------------------------------------------ Like so many other search engine optimization agents, we, too, have found all ranking checkers we tested, including the market leaders, to be highly inaccurate at times, though not consistently so, which of course only makes matters worse. And which is why we finally resorted to writing our own server based, customized solution. However, when determining a web site's search engine ranking, there's another fairly important issue to consider as well: search engine index flux. Take Google as an example: depending on whether you check rankings on "google.com", "www.google.com", "www2.google.com" and "www3.google.com" *and* depending on which phase in their ongoing reindexing run you happen to hit, results may differ dramatically. (This applies to linkage checks, too, btw.) There's actually only a fairly short phase in any given calendar month when results on both "google.com" and "www.google.com" will be consistent. The situation is quite similar with AltaVista, Inktomi and other contenders. Traffic load, load balancing measures, indexing runs spread across hundreds if not thousands of web servers (Google is famed to work with 10,000+ Linux boxes!), ongoing ranking jobs, time of day, etc. are all factors which may skew results or make them fairly unreliable, especially in a scenario where you may have to illustrate a given ranking when presenting your services to potential clients. This is something SEO clients should be educated about very early on in the process to avoid possible loss of credibility and confidence. This text may freely be republished or distributed in unmodified form provided the following resource box is included intact either at the beginning or the end of the article and a complimentary copy or notice (link) is sent to the author at the address specified below: Ralph Tegtmeier is the co-founder and principal of fantomaster.com GmbH (Belgium), < http://fantomaster.com/ >, a company specializing in webmasters software development, industrial-strength cloaking and search engine positioning services. He has been a web marketer since 1994 and is editor-in-chief of fantomNews, a free newsletter focusing on search engine optimization, available at: < http://fantomaster.com/fantomnews-sub.html > You can contact him at mailto:fneditor@fantomaster.com (c) copyright 2002 by fantomaster.com All rights reserved. Downloaded at: < http://fantomaster.com/ >

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