Crawlers are why Google knows what’s on the web. what is the main purpose of a web crawler program? To index pages so you can search for ’em later.
Some sites block ’em ’cause they don’t wanna be indexed (like test sites or private stuff). Others just hate bots.
Pro tip: If you run a site, use robots.txt to control crawler access.
Some sites block ’em ’cause they don’t wanna be indexed (like test sites or private stuff). Others just hate bots.
Pro tip: If you run a site, use robots.txt to control crawler access.