On Friday 12 November 2004 05:10 pm, Randall R Schulz wrote:
But if you really want to shut out the bots, create an image file (GIF, PNG, JPEG, etc.) that displays the email address. If you want to be even more sure, include some graphical obfuscation that a person can easily disregard but which will confuse OCR software. I just signed up for on-line payment of my telephone bill, and one step of the process requires the user to read a series of alphanumeric characters in an image and enter them in text box. The original image from which the human user must transcribe those letters and numbers has the appearance of yellow graph paper. I take it that is something that OCR software has great difficulty dealing with.
An easy way to make your email address unreadable on a web page is to use: http://automaticlabs.com/products/enkoderform/