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Security

RLS, API keys, authentication, server-side secrets and common security mistakes.

The handful of mistakes that make AI-built projects unsafe, and how to check for them.

Guides in Security

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Answered questions in Security

34 short, plain-English answers filed under this topic.

Are Lovable websites secure?

Lovable includes built-in security scanning and API-key protection, but real security also depends on you setting up row-level security and role checks correctly — it isn't automatic just because you used Lovable.

How do I run a security audit on Lovable?

Open your project's Security view in Lovable to see automated scan results, then ask Lovable in chat to review RLS policies, role storage, and any exposed secrets in detail.

How do I secure a Lovable app before launch?

Before launch, verify RLS on every table, move roles into a dedicated user_roles table, confirm no secrets sit in front-end code, and run Lovable's Security view scan.

How do I check Supabase RLS?

Ask Lovable to list every table and its row-level security status and policies in plain language — Lovable Cloud users don't have Supabase dashboard access, so this has to go through chat.

Can users access my database?

Only through the access rules you (or your row-level security policies) allow — Lovable Cloud's database isn't publicly browsable, but a table without RLS enabled is effectively open to anyone with your app's public key.

Can users access other users' information?

Only if your row-level security policies are missing or too permissive — with correct RLS, a query for 'my orders' can only ever return rows owned by the logged-in user, regardless of what the front end sends.

How do I protect admin pages?

Check the user's role server-side (in the database query or Edge Function) using a dedicated user_roles table — hiding an admin link in the navigation menu doesn't stop someone visiting the URL directly.

How do I protect API keys?

Never put API keys in front-end code — store them as secrets used only inside server functions (Edge Functions), where the browser never sees them.

Where should secrets be stored?

In your project's server-side secrets store, used only inside Edge Functions — never in front-end code, client-side environment variables, or committed to your Git repository.

How do I secure Edge Functions?

Verify the caller's identity and role inside the function itself, validate all input, use secrets rather than hard-coded keys, and don't assume the front end already checked permissions.

How do I prevent database abuse?

Combine row-level security with rate limiting on writes, input validation, and CAPTCHA or similar checks on public forms — RLS stops unauthorised reads/writes, but it doesn't stop a legitimate-looking user from hammering an endpoint.

How do I rate-limit an API?

Add per-user or per-IP request limits inside your Edge Function (or via a Postgres table tracking recent requests), since Lovable doesn't apply rate limiting to your custom endpoints automatically.

How do I stop bots?

Add a CAPTCHA (e.g. Cloudflare Turnstile) to public forms, validate inputs server-side, and rate-limit submissions — client-side-only checks like a hidden field are easy for real bots to bypass.

How do I prevent spam registrations?

Verify email addresses on sign-up, add a CAPTCHA to the registration form, rate-limit sign-up attempts per IP, and check the token server-side before creating an account.

How do I check for exposed environment variables?

Ask Lovable to search your codebase for hard-coded API keys and secrets in front-end files, then move anything sensitive into a server function or edge function.

Is my Supabase anon key safe to expose?

Yes. The Supabase anon key is meant to be public — it identifies your project, it does not grant access on its own. Access is controlled by row-level security (RLS) policies, not by hiding the key.

How do I check a Lovable project for security vulnerabilities?

Open the project's Security view (or the workspace Security center) to run Lovable's built-in scan for exposed secrets, missing RLS, and vulnerable dependencies, then ask Lovable to fix what it flags.

What security checks should I do before launching?

Run Lovable's Security scan, verify RLS on every table, confirm secrets are server-side, check auth flows and admin permissions, and re-test payments before you Publish.

How do I make Lovable perform a security review without changing anything?

Explicitly tell Lovable to run in read-only review mode — ask it to report findings only and not touch any code, then decide what to fix yourself.

What should I check before launching a Lovable website?

Run through security, forms, auth, payments, mobile display, browser compatibility, speed, SEO basics and broken links before you hit Publish.

How do I test my Lovable app?

Work through core user flows manually in Preview and on a published link, on desktop and mobile, as a logged-out user and as a normal account — not just as the builder.

How do I test mobile devices?

Open the published site on a real phone (or use your browser's device toolbar as a fallback) and check layout, tap targets, forms and navigation at common breakpoints.

How do I test forms?

Submit every form with valid, invalid and empty data, confirm error messages appear, and check that submitted data actually lands where it should (database, inbox or integration).

How do I test user registration?

Sign up with a real and a duplicate email, confirm verification emails arrive, check password rules, and confirm a new account only gets the access it should.

How do I test password reset?

Request a reset with a real account, confirm the email arrives with a working link, complete the reset, and confirm the old password stops working and the reset link can't be reused.

How do I test payments?

Run a real Stripe test-mode transaction end to end — checkout, webhook, database update and confirmation email — before switching to live keys.

How do I test admin permissions?

Log in as a non-admin account and try to reach every admin action directly (URLs, buttons, API calls) to confirm the server — not just the UI — blocks it.

How do I test RLS?

Try reading and writing data as a different logged-in user and as a logged-out visitor to confirm row-level security actually blocks what it should, rather than assuming the policy is correct.

How do I test SEO?

Check that every page has a unique title and meta description, images have alt text, the site generates a sitemap, and preview the page as a search engine or social share would see it.

How do I test website speed?

Run the published (not local) URL through a tool like Google PageSpeed Insights or WebPageTest, and check real load times on mobile data, not just your fast office wifi.

How do I test different browsers?

Open the published site in at least Chrome, Safari and Firefox on both desktop and mobile, and check layout, forms and any browser-specific features work in each.

How do I check for broken links?

Click through every nav item, footer link and CTA yourself, or ask Lovable to list every link on the site so you can verify each one resolves before launch.

How do I check for console errors?

Open your browser's developer console on every key page of the published site and look for red error messages — then ask Lovable to fix each one by name.

How do I back up my project before launch?

Bookmark the current state in Version history, and push to a connected GitHub/GitLab repo via Git sync so you have a full backup outside Lovable too.

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