Chapter 30. Killing Spiders

Thus far, we have talked about how to create effective, stealthy, and smart webbots. However, there is also a market for developers who create countermeasures that defend websites from webbots and spiders. These opportunities exist because sometimes website owners want to shield their sites from webbots and spiders for these purposes:

  • Protect intellectual property

  • Shield email addresses from spammers

  • Regulate how often the website is used

  • Prevent the archival of online media

  • Create a level playing field for all users

The first four items in this list are fairly obvious, but the fifth is more complicated. Believe it or not, creating a level playing field is one of the main reasons web developers cite for attempting to ban ...

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