Email obfuscation has a lot more techniques than what would be encountered in a text response, so I find the title too broad.
I'd be interested to see attempts to extract emails from pages that utilize javascript/css. For example, I have at least two implementations of email obfuscation on my personal website:
1. for non-js users, I have a collection of elements in a noscript tag where a subset are hidden or shown based on some css which uses a combination of pseduo classes and selectors to only show the (full) email after some page interaction
2. for js users, I run some pretty trivial javascript (string manipulation to build b64 encoded string, then decode) to modify the dom after certain events fire
I'd be interested to see attempts to extract emails from pages that utilize javascript/css. For example, I have at least two implementations of email obfuscation on my personal website:
1. for non-js users, I have a collection of elements in a noscript tag where a subset are hidden or shown based on some css which uses a combination of pseduo classes and selectors to only show the (full) email after some page interaction
2. for js users, I run some pretty trivial javascript (string manipulation to build b64 encoded string, then decode) to modify the dom after certain events fire