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
What still needs a closer look: write access and app logic
Lovable apps are typically backed by Supabase or Firebase, and the free Surface Check now detects whichever you use and tests, read-only, whether your data is readable without a login. What it can't see from the outside is who can write or change that data, and the access-control logic inside your app, the kind of flaw where one user can load another's records. Those need a direct look at the project and the code, which a full review gives.
What the free Surface Check covers for your Lovable app
- Database access: we detect your Supabase or Firebase backend from your front-end and test, read-only, whether any of your data is readable without a login.
- 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.
- Exposed secrets: common API keys or tokens (such as a Supabase service_role or Stripe secret key) left in the front-end code your site serves to browsers.
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 never signs in and never uses a secret key. The passive checks read only what your domain shows the public internet: headers, TLS, cookies and DNS. If it detects a Supabase or Firebase backend, it uses the public config your app already ships to test, read-only, whether your data is readable without a login, without ever reading your actual data or writing anything.
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?
The free check now covers read access to your Supabase or Firebase data and exposed keys automatically. What it can't see is who can write or change that data, and the access-control logic inside your app, which is what a full Secvura review covers 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