6. Making a custom error page and redirect
<META http-equiv="refresh" content="0;url=http://www.my-new-site.com/">
This site has moved. If you do not get redirected to our new site,
click <a href="http://www.my-new-site.com">here</a>.
This redirects the browser to the error page you created above, which in turns redirects the browser to your new site. You have to include /~USERNAME (which is your Oxford username) because the .htaccess file needs absolute paths, and the Oxford username is part of this.
Internet Explorer by default displays "Friendly HTTP Error Messages" if the content of your custom error message is less than 512 bytes. So, in the example above you must make sure the page size is greater than 512 bytes. One way would be to add a suitably sized graphic.