Introduction - If you have any usage issues, please Google them yourself
Spider (Spider) is the Internet on a very useful procedure, the search engine spider will use to collect Web pages to the database, enterprise use of spider s web site to monitor and track competitor changes, personal users to download Web pages spider in order to Offline use and development of procedures to use spiders to scan their own Web check invalid link ... ... for different users, spider have different purposes. Then, in the end is how spider work?