DocumentationDoorFall FormsTroubleshooting & Security

FAQ

Frequently asked questions about DoorFall Forms.

Is DoorFall Forms a hosted SaaS?

No. DoorFall Forms is a self-hosted PHP application.

Can I install it in a subfolder?

Yes. Version 1.0 supports root-domain, subdomain and subfolder installation.

Can one license be active on multiple domains?

No. One DFF license is intended for one active installation/domain at a time.

Can I move my license?

Yes. Deactivate it on the old installation before activating it on the new one.

Can I embed a form on another website?

Yes. Use Inline Embed or Popup / Button.

Can I restrict which sites embed my form?

Yes. Enable Restrict website embedding and enter Allowed domains.

Can I send the visitor a confirmation email?

Yes. Configure SMTP, add an Email field, enable Send confirmation to submitter and choose that field.

Can I redirect after submission?

Yes. In Form behavior choose Redirect to URL.

Can I limit submissions?

Yes. Use Maximum submissions, rate limiting and optionally one submission per IP.

Can I require a password?

Yes. Enable Password protect this form.

Can I require human verification?

Yes. Configure Cloudflare Turnstile keys in Settings and enable Turnstile on the form.

Does Preview affect Analytics?

No. Admin Preview is excluded from Analytics.

Does a temporary DoorFall license-service outage disable an active site?

No. An already activated installation remains available during temporary connectivity problems.

Last updated August 19, 2026