html - Effective method to hide email from spam bots

Question

On my homepage, I'm using this method to hide my email from spam bots:

<a href="admin [at] example.com"
   rel="nofollow"
   onclick="this.href='mailto:' + 'admin' + '@' + 'example.com'">Contact me</a>

What do you think about it? Is it effective? What other methods do you know or use?

Answer 1

Working with content and attr in CSS:

.cryptedmail:after {
  content: attr(data-name) "@" attr(data-domain) "." attr(data-tld); 
}

<a href="#" class="cryptedmail"
   data-name="info"
   data-domain="example"
   data-tld="org"
   onclick="window.location.href = 'mailto:' + this.dataset.name + '@' + this.dataset.domain + '.' + this.dataset.tld; return false;"></a>