Stopping the Spiders
Free and Fee Databases
Spiders can crawl information in static pages.
Spiders can crawl the surface layers of web pages with databases, but spiders can NOT crawl the information in the databases.
A database is a collection of stored information. In terms of research, there are two types of databases.
- databases that are free and open to anyone
- databases that are protected by passwords or require a subscription
Let's look at an example on the next page. Next >>