http://www.nicholasjon.com/ Tue, 28 Nov 2006 20:00:40 GMT nicholasjon.com :: an rss feed http://www.nicholasjon.com/images/n_ficon.gif http://www.nicholasjon.com/ http://www.nicholasjon.com/permalink/2006/11/28/comment_spam <p>Being on the receiving end of comment spam sucks. I use two techniques to try to slow it down, but some still manages to get through.</p> <p>The first of my techniques is wrapping the actual comment posting form in an ajax request. This weeds out bots that can&#8217;t handle javascript or XMLHttpRequests. The second is a double-encoded hidden form field in the actual comment posting form. Both the name and the value of that form change every few minutes, rendering old name-value pairs useless and basically preventing comment spam posting without actually hitting the site immediately beforehand.</p> <p>Like I said, some manages to get through anyway. But I&#8217;m trying to do what I can without resorting to blacklists or capchas &mdash; which I think are tantamount to giving up, though I admit they may be in my near-future.</p> Tue, 28 Nov 2006 20:00:40 GMT http://www.nicholasjon.com/permalink/2006/11/28/comment_spam nicholasjon@nicholasjon.com (Nick)