One way to block web scraping while allowing well-behaved bots is to implement a rate limit. This allows only a certain number of requests per unit of time from a particular IP address. You can also use a CAPTCHA to differentiate between human and automated access. Additionally, you can include a
robots.txt file on your website to specify which pages can be crawled by bots, and you can also set the
X-Robots-Tag header to control access for specific pages.
Another approach is to use the
User-Agent header to allow or block specific bots based on their identity. For example, you can allow requests from commonly-used search engine bots such as Googlebot, but block requests from unknown or suspicious User-Agents.
Keep in mind, though, that these methods are not foolproof and can still be bypassed by sophisticated scraping tools.
Blocking web scraping while allowing well-behaved bots can be a challenging task, but here are some steps you can follow:
It's worth noting that these methods are not foolproof and determined scrapers may still be able to scrape your website. It's always a good idea to regularly monitor your server logs and make changes as needed to keep your website protected.