If we have the following structure in our application:

• 📁 application_folder_name
  • 📄 index.php
  • 📄 handle_form.php
  • 📄 main.js

And we fill our index.php with the following content just to get a basic website with a form working. You should be able to run this through a php-server of your choice.

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">