Hi, I have the idea that a URI with a domain that was recently registered would be a good indicator of spam. Has this been discussed before, and would it be hard to implement?
Various optimizations are possible over just doing a 'whois' each time, e.g. caching, creating a global url blocklist (with auto expiry), etc. For an unrelated project I've been using the following regexp to parse registration date from whois records: /(?:(?:Creation|created|registration|registered) (?:date|on)):\s*(.*)/i -- Karl 2006-12-20 16:51
