Use "Encryption" to determine whether and how you want to encrypt the source code of your HTML pages.

Encrypt code
Enable this option to have HTML Guard encrypt the source code of your pages (or at least portions thereof). This encryption is executed using JavaScript in the user's browser at the time the page is requested.
Entire document
Select this option to encode all the code of your HTML files.
<body> portion only
Selecting this option causes only the content between the <body> and </body> HTML tags to be encoded. This means that the title and meta tags on your page will be excluded from encryption.
<script> portions only
This setting results in encrypting only the portions of the source code between the <script> and </script> HTML tags. This means that only scripts (JavaScript, VBScript) on your pages are protected.
Email links only
Use this setting to allow encryption only of so-called mailto links, (<a href="mailto:email@domain.com">Send Email</a>) This is especially useful for fighting spambots as they attempt to automatically collect your email addresses.
Add notice for users with JavaScript disabled
The decryption of encoded pages requires a browser that has JavaScript enabled. You have the option of displaying a notice to users who have disabled JavaScript in their browser.