9. The computer-implemented method of claim 1 , wherein storing crawl data further comprises determining a number of bytes downloaded from the respective website during one or more crawl sessions.
1. A computer-implemented method of indexing documents in websites, the method comprising: on a server system having one or more processors and memory storing programs to be executed by the one or more processors: for each website of a multiplicity of websites, each website having a corresponding current crawl rate limit: crawling the respective website, in accordance with the current crawl rate limit corresponding to the respective website, to download documents from the respective website for inclusion in a database; storing crawl data associated with the crawling of the respective website; and providing, for display, a crawl rate control mechanism to a respective owner of the respective website, including providing for display to the respective owner at least a portion of the crawl data, and enabling selection of a new crawl rate limit corresponding to the respective website by the respective owner.