http://techblog.tilllate.com/2008/07/20/ten-methods-to-obfuscate-e-mail-addresses-compared/

CSS

/* Email Address Obfuscation
https://www.jayway.com/2012/11/30/smart-email-obfuscation-using-css/ */

.changedirection {
    unicode-bidi: bidi-override; /* enable bidirectioinal text */
    direction: rtl;
    text-align:left;
    }

<p class=”changedirection”>TLD.DOMAIN@USERNAME</p>

JavaScript & ROT13 Encryption

http://rot13.de/

<script type=”text/javascript”>
document.write(“<n uers=\”znvygb:fvyinasbbone10@gvyyyngr.pbz\” ery=\”absbyybj\”>”.replace(/[a-zA-Z]/g, function(c){return String.fromCharCode((c<=”Z”?90:122)>=(c=c.charCodeAt(0)+13)?c:c-26);}));
</script></a>

IMSIDC5C32E1D829AEE029C8198D3282E23EE1B218589