GrowSurf (https://growsurf.com) turns your email form into referrals by giving each of your contacts a unique referral link to share with their friends.

<!--
GrowSurf (https://growsurf.com) turns your email form into referrals by giving each of your contacts a unique referral link to share with their friends.
  
  1. Include this script in your HTML page's <HEAD>:
      <script type="text/javascript" src="//js.growsurf.com/v1"></script>

  2. In your HTML page, point your form's action to your GrowSurf campaign:
      https://growsurf.com/c/ludoc9
  
For the full Docs, go to https://growsurf.com/docs
-->


<!DOCTYPE html>
<html>

  <head>
    <script src="https://js.growsurf.com/v1"></script>
  </head>

  <body>
    <form action="https://growsurf.com/c/ludoc9" method="post" id="sign-up">
      <input type="email" name="email" value="gavin@hooli.com" placeholder="Email">
      <input type="submit" value="Submit">
    </form>
  </body>
  
</html>