To move like a spider.
To cover a surface like a cobweb.
(of a computer program) To follow links on the World Wide Web in order to gather information.
The online dictionary is regularly spidered by search engines.
Infested by spiders; covered in cobwebs
Three faces have resolved into place above summer-weight sportcoats and half-Windsors across a polished pine conference table shiny with the spidered light of an Arizona noon. David Foster Wallace, Infinite Jest, pp. 3, 1st Paperback Ed.