How to add html meta-tags in header?

After reading through the F.A.Q., I didn't find the answers I am looking for.

How do I add html meta-tags and keywords in the form/page header so the page can be crawled by search engine spiders/robots so my page/form gets indexed?

You will need to use the form source code and have it published on a website page.

User guide: How to get the Full Source Code of your Form

Let us know if you require further assistance.