Hikari Email & URL Obfuscator plugin obfuscates emails and normal links, to hide them from spam harvesters and Search Endigne crawlers. It uses ROT13 or cc8b to encode each link while PHP is building the page, then uses JavaScript to decode it and show it to the user. If JavaScript is not available, it uses CSS to hide them.
Works instantly, no need to edit your posts to have your links obfuscated: Hikari Email & URL Obfuscator plugin automatically detects them and starts obfuscating as soon as it is activated.
Info and Downlod: http://wordpress.org/extend/plugins/hikari-email-url-obfuscator/
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Updated on 2010-10-14 to version 0.08.10
Requires WordPress Version: 2.8.0 or higher Compatible up to: 3.0.1