Utilities | Javascript Email Address Protection (SunStar Media

Use javascript to protect your email addresses from being harvested off your website by spammers. Most automated email leeching programs scan your webpage source code searching for MAILTO tags and properly formatted email addresses. By displaying your email address with javascript, these programs aren't able to easily identifiy and collect your email address.

Add the following javascript to your page:

Then protect your email address by calling it by using this syntax:

Leave the "display text" field empty and the script will display the email address. Here are a couple of examples:

Email address only: ()

Email address with display text ()

Email address with display image ()

Email address with display text and pre-populated subject (Alternate display text is required) ()

Additional Note: I also have this available as a ColdFusion UDF (User-Defined Function) that allows email addresses to be protected by simply coding EmailProtect("username@domain.com",""). Write me at and let me know if you are interested in the source.

Another good technique can be found at:
http://www.dynamicdrive.com/emailriddler/

Unicode Email Protection

Note: The below unicode method doesn't work. Please use the javascript method above instead. (I'm leaving it here because it is an interested method of encoding content.)

Protect your email address from being leeched from your website by converting it to unicode. Most automated email leeching programs look for MAILTO tags and properly formatted email addresses. By converting your email address to unicode, these programs aren't able to detect your email address.

Back to Utilities/Demo Menu

Featured Site

Javascript Email Address Protection

Unicode Email Protection