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Question:

Is there a super fast way to detect if a URL is no longer valid?

Jul 16 '17 at 15:27

When fetching feeds (for instance) sometimes a particular feed will have been discontinued and the URL is no longer valid. When I hit one of these the delay is equal to the connect timeout setting (say 5 seconds).

Is there a super fast way to detect if a URL is no longer valid?

Thanks!