O'Reilly logo

Webbots, Spiders, and Screen Scrapers by Michael Schrenk

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 7. PRICE-MONITORING WEBBOTS

In this chapter, we'll look at a strategic application of webbots—monitoring online prices. There are many reasons one would do this. For example, a webbot might monitor prices for these purposes:

  • Notifying someone (via email or text message[24]) when a price drops below a preset threshold

  • Predicting price trends by performing statistical analysis on price histories

  • Establishing your company's prices by studying what the competition charges for similar items

Regardless of your reasons to monitor prices, the one thing that all of these strategies have in common is that they all download web pages containing prices and then identify and parse the data.

In this chapter, I will describe methods for monitoring online ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required