Forum Moderators: open
"Access Denied
We're sorry. The software you are using to access our website is not allowed. Some examples of this are e-mail harvesting programs, web crawlers, spiders, and programs that will copy websites to your hard drive. If you feel you have received this message in error, please send an e-mail addressed to the webmaster. Your IP Address has been logged. Prepare to be Slashdotted..."
I like that approach, and use a similar one. All you'll get on my sites is:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Language" content="en-US">
<title>Access Denied</title>
</head>
<body>
<h1>Access denied</h1>
<!--#exec cmd="sleep 5" -->
<p>Please click <a href=/403i.html">here</a> for more information.
<body>
</html>
If the visitors follow the link, they get an explanation like yours, just in case a curious-but-not-malicious visitor gets trapped. Very few 'bots ever follow that link.
Jim