PHP Classes

Google Dancer: Check whether Google is updating their index

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googledancer 1.0GNU General Publi...Searching, Web services, SEO


This class is meant to query different Google servers and analyse the results to determine if their search index is being updated. This index update is also known as Google Dance.

This class checks whether Google is dancing making three types of tests: counting the number of links pointing to a set of domains, counting the number of indexed pages of a set of domains, counting the number of results of a given search query words.

The class repeats the tests on several alternative servers and compares the results to return an index that is related with evidence that Google is updating their index.

Innovation Award
PHP Programming Innovation award nominee
August 2004
Number 5

Prize: One book of choice by O'Reilly
Google is undoubtedly one of the most important sites on the Internet. It is responsible for indexing most of the Internet sites so they can be found in their search engine result pages.

Google is responsible for many visits that the indexed sites get by users that found them by searching for something in Google search results.

The chances that a site page has of being found on Google search results depend on factor that Google calls page rank ( PR ). This factor depends on factors combined with an algorithm patented by Google that weight the incoming and outgoing links of a page.

The Google index and their page ranks are updated regularly. When this happens it is said that Google is dancing.

Google has many data centers and the page rank update is not done all at the same time. This class exploits this fact and polls Google servers in different data centers to determine if Google is dancing currently.

This class can provide important information to people that dedicate to optimizing their page ranks to improve their visibility in Google search results, and so maximize the number of free visitors that Google sends to their sites.

Manuel Lemos
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This thing works perfectly.
13 years ago (Texx Smith)