Introduction

Web crawlers (spiders), deployed by spammers, constantly scrape the web for new email addresses to victimize. You can hide your email address in plain sight by encoding it in a way that web-crawlers are less likely to understand.

Instead of writing your email address in familiar ASCII characters, you can write it as *decimal equivalents of* ASCII characters.

My email address is:

Email: cwmiller@buffalo.edu

If you view this document's HTML page source, you'll see that my email address string is written as its equivalent series of ASCII decimal values:

99 119 109 105 108 108 101 114 64 98 117 102 102 97 108 111 46 101 100 117 

Next, I formatted these ASCII decimal values to turn them into my email address:

Email: <a href="mailto:&#99;&#119;&#109;&#105;&#108;&#108;&#101;&#114;&#64;&#98;&#117;&#102;&#102;&#97;&#108;&#111;&#46;&#101;&#100;&#117; ">&#99;&#119;&#109;&#105;&#108;&#108;&#101;&#114;&#64;&#98;&#117;&#102;&#102;&#97;&#108;&#111;&#46;&#101;&#100;&#117;</a>

Use this conversion tool to convert your email address to its equivalent ASCII decimal value.

References

1. http://en.wikipedia.org/wiki/Ascii
2. http://www.easycalculation.com/ascii-hex.php