Blog · 2026-08-06
Is your Bolt.new app GDPR compliant? What to check before taking EU users
Bolt.new gets you from prompt to deployed app astonishingly fast — typically a React/Next.js frontend, a Supabase or Firebase backend, deployed to Netlify or Vercel in a click. None of those defaults are compliant or non-compliant by themselves. What matters is what the generated code actually does the moment an EU visitor loads it.
Here is the pre-launch pass we recommend for Bolt apps specifically. (Practical guidance, not legal advice.)
1. The backend Bolt wired up for you
Bolt's database integrations work the same way Lovable's do: the browser talks to Supabase (or Firebase) directly, and the only thing standing between the public internet and your tables is the access-rules layer — Row Level Security on Supabase, security rules on Firebase.
- Generated tables often ship with RLS disabled or with an allow-everything policy, because that is what "works" in a demo. From the outside this looks like a database that answers to anyone: database readable without a login.
- Check which keys ended up in your bundle. The Supabase
anonkey belongs there; theservice_rolekey never does — and an AI generation step pasting the wrong one is a known failure mode: admin key exposed in frontend code.
Do the two-minute test: from a logged-out private window, request one of your tables through the API URL you find in DevTools → Network. Data back = problem.
2. What loads before consent
Bolt templates and prompt-generated marketing pages love to include analytics. If Google Analytics, a Meta Pixel, or an embedded YouTube hero video fires on first paint, you have the classic consent problem under § 25 TDDDG — consent is required *before* the tracker runs, not via a banner painted over it:
- Tracking loads before anyone could consent
- Tracking cookie set without consent
- Third-party tracking service embedded
Also check the font situation — fonts.googleapis.com in the <head> is the classic template default and a known warning-letter magnet in Germany: Google Fonts loaded directly from Google. Self-hosting takes minutes.
The good news: if your Bolt app is a pure tool with no trackers, you may not need a cookie banner at all — needing *consent for tracking* and needing *a banner* are not the same thing.
3. The legal pages Bolt won't generate
Bolt writes code, not legal texts. Before you promote the app to EU users:
- Privacy policy — required by Art. 13 GDPR the moment you process personal data, which a signup form already does: no privacy policy found.
- Imprint (Impressum) — if you address the German market commercially, § 5 DDG requires one, and its absence is trivially visible to competitors and IHKs alike: no imprint found.
Link both in the footer on every page, including the deployed preview domain people actually visit.
4. Hosting-layer hygiene: headers
Netlify and Vercel serve your app over HTTPS, but the security headers that a professional review expects are your job, and generated projects rarely set them:
- Content-Security-Policy — the big one; limits what a compromised or injected script can do
- HSTS — pins browsers to HTTPS
- Clickjacking protection and the nosniff header
On both Netlify (_headers file or netlify.toml) and Vercel (vercel.json) this is a ten-line config you write once. While you are there, make sure no resource still loads over plain HTTP: mixed content.
One Bolt-specific extra: production builds sometimes ship source maps, which hand your readable source code to anyone who asks — source map publicly accessible. Disable source maps in the production build config.
5. The one nobody has on their list
Since June 2025, Germany's accessibility law (BFSG) applies to many consumer-facing digital services. Missing alt texts, no keyboard navigation, and poor contrast are now compliance topics, not just polish: basic accessibility gaps. Bolt's generated UIs are usually decent here, but check what your prompts changed.
The sensible order
1. Now: database rules and exposed keys — those are breach material. 2. Before sharing the link widely: remove or gate trackers, self-host fonts. 3. Before charging money or running ads: imprint and privacy policy. 4. First quiet afternoon: headers, source maps, accessibility basics.
Or check all fifteen points in one pass: our scanner reads your Bolt app passively — the same way any browser does, no login, nothing installed, nothing stored — and gives you the findings in about a minute.