Security for apps built with Lovable
Lovable turns a prompt into a working full-stack app, usually backed by Supabase. The catch is that security configuration is not part of the prompt. Start with a free, passive snapshot of your external surface, then check the parts the outside view can't see.
Generated fast, shipped faster
Lovable is built for speed: describe what you want and it wires up the front-end, the database and the auth. That is exactly why the defaults deserve a second look. The steps a careful developer would take by hand, tightening database access, keeping keys server-side, adding the standard web hardening, are the easy ones to skip when the app already appears to work.
The outside view can’t see this
The usual culprit: a database anyone can read
Lovable apps are typically backed by Supabase, and the most common serious issue is a table left readable by the public anon key that ships in your front-end, because Row Level Security was never switched on or was left too permissive. No login is needed to read it, and it is invisible from the outside, so a passive external check can't see it. You have to check it against your own project.
What the free Surface Check covers for your Lovable app
- HTTPS and HSTS on your custom domain, so traffic can't be silently downgraded to plain HTTP.
- Security headers (Content-Security-Policy, clickjacking protection, nosniff) on your front-end.
- Your TLS certificate's health and how soon it expires.
- Cookie flags (HttpOnly, Secure, SameSite) on any session or auth cookies you set.
- Email spoofing: SPF, DKIM and DMARC on your domain, so attackers can't send email as you.
See your external surface in about a minute
A free, passive snapshot with an A-to-F Surface Score and every issue scored by severity and fix effort. No sign-up, and nothing is stored.
Run the free Surface Check →Frequently asked
Does the check need access to my Lovable project?
No. It is passive and reads only what your domain shows the public internet: headers, TLS, cookies and DNS. It never signs in and never touches your app or database.
My Lovable app just works, so why check it?
Working and secure are different things. An app can serve every page perfectly while leaving its database readable or a key exposed. Those don't show up as errors, which is exactly why they get missed.
What should I check that the free tool can't?
Your database access rules (Supabase Row Level Security) and whether any powerful key is exposed in the browser. Our guide covers the database check; a full Secvura review covers access control end to end.
Is it free?
Yes, free and with no sign-up, with an A-to-F Surface Score and every issue scored by severity and fix effort.
More free checks