Question

What are spiders? How do they help build Googles index of the web?

Answer 1

I was bouta say spiders are 8 legged creepy things but the first answer works too

Answer 2

Spiders, such as Googlebot, visit web pages in search of new data to add to the index. This is critical because Google's business model (attract consumers and sell ad space) is reliant on providing high-quality, relevant, and up-to-date search results. The spiders are pretty smart, too