Marketo allows you to edit your landing page meta tags for SEO purposes as well as customize the
<head> portion of the HTML.
Select a landing page and click Edit Draft.
The Landing page designer will open in a new window.
Under Landing Page Actions, click Edit Page Meta Tags.
Enter the Title, Keywords, and Description for your page. Select the desired Robots option and enter any custom content you want for the HTML
<head> section. Click Save.
What does robots mean?
index: page is searchable on the web. follow: search engines can follow links on indexed pages.
Edit the tags any time and approve the landing page.