What is the main purpose of a web crawler program? Can someone explain? or What is the main purpose o

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Wow, thanks for all the replies, everyone! This really clears things up. I had no idea crawlers were so involved in SEO and indexing—kinda wild how much work they do behind the scenes.

I checked out Scrapy like one of you suggested, and it’s way more intuitive than I expected. Still figuring it out, but it’s fun to tinker with.

One follow-up though: How do crawlers handle dynamic content (like JS-heavy sites)? Do they miss stuff if a page loads content after the initial visit?

Thanks again! You all rock.

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