detect google bot

I need an experienced PHP-coder/Server admin who can tell me how to detect webcrawlers/-spiders like for example Google (googlebot).

Is there a sure way to detect these bots? Or do they mask itself sometimes? I need a reliable way for detecting and if necessary redirecting to another page.

Let me know what you can do for me.

I think we would also speak about cloaking here... see following links:

<[url removed, login to view]>

<[url removed, login to view]> (german, describes how Google changed their spiders so they can detect cloaking now)

## Deliverables

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):

a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.

b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

web

Amazon Web Services PHP Interface do usuário / AI

ID do Projeto: #3771394

Sobre o projeto