crawler
noun
[ ˈkrɔːlə ]
• a thing that crawls or moves at a slow pace, especially an insect.
• "the light bulb was a magnet for moths and many-legged crawlers"
• a program that systematically browses the World Wide Web in order to create an index of data.
• a person who behaves obsequiously in the hope of gaining favour.
• "her pleading tone surprised herself, she was no crawler"
