subject: Watching Websites [print this page] That's just for the sites to run themselvesThat's just for the sites to run themselves. The retailer might care about competitors' pricing on other sites, and the search engine might want to know it has more results, or better ones, than others. Both might like to know what the world thinks of them in public forums, or whether social networks are driving a significant amount of traffic to their sites, or how fast their pages load.