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I want to create a crawler with C#. The problem is that some websites have disabled black listed crawlers in their robots.txt file, using:
User-agent: *
Disallow: /
Is there a way I could fake my request to show that I’m for instance Googlebot?
HttpWebRequesthas.UserAgent, however – I would simply say: don’t.Of course, your point re robots.txt is rather moot; that is for you to follow. If you write a badly behaved tool that ignores
robots.txtregardless of what you claim as your user-agent, then you should expect to be blacklisted fairly quickly.In particular, trying to impersonate any of the major players is very dubious. Frankly I’d expect most major sites to also check the incoming IP range.