<meta name="savelink" content="recaptcha"/>
This page contains a recaptchaform. The user has to fill a recaptcha and press submit.
<meta name="savelink" content="Link:Continue"/>
This page contains a normal href link with linktitle “Continue”. The user has to click this link.
...no metatag ...
Savelink looks for redirects or further decryptable links.
<meta name="savelink" content="aes:key:base64cipher"/>
Savelinks decodes base64cipher using base64decode afterwards it decryps the cipher using aes.