Crawlers are fascinating! They don’t just roam randomly—they follow rules set by search engines. For example, Google’s crawler (Googlebot) uses things like PageRank to decide which pages to hit first.
If you wanna play with one, check out Apache Nutch. It’s open-source and lets you build your own crawler.
Also, they avoid loops by checking for duplicate content and using sitemaps. Pretty slick, huh?
If you wanna play with one, check out Apache Nutch. It’s open-source and lets you build your own crawler.
Also, they avoid loops by checking for duplicate content and using sitemaps. Pretty slick, huh?