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Sumbrel
Find your app's security holes before hackers do
AI tools let you ship a SaaS in a weekend. They don't check whether your Stripe key ended up in the frontend or yourgit folder is still public. Paste your URL. Sumbrel runs 30+ checks from the outside (headers, TLS, DNS, shipped JavaScript, exposed files) and matches your libraries against 300,000+ known vulnerabilities. You get a score /100, and every issue comes with the exact prompt to paste into Cursor, Claude or Lovable to fix it. Passive by default. Free scan.
Hey Product Hunt 👋
I'm Alex, the maker of Sumbrel.
What inspired it: for months I kept seeing the same story on X. Someone ships an app with Lovable, Cursor or Claude in a weekend, and a few days later a stranger finds the Stripe key in the frontend, or the database open to anyone. These founders weren't careless. The AI just doesn't think about security, and a real audit costs more than most of these apps earn.
The problem: most of these holes are visible from the outside, and bots already look for them every day. So Sumbrel runs the same checks for you. Paste your URL, get a score /100, and for each issue the evidence plus a prompt you paste straight into your AI editor to fix it. Then it keeps watching and alerts you when something new shows up.
How it evolved:
• At first, anyone could scan any domain and read every finding. I realized that's a free recon tool for attackers. Now the details only show to someone who proves they own the domain.
• Passive by default. The deeper checks (.env, .git, backups) only run on verified domains.
• I started with several plans and ended up with one. Free gives you your score and the fix for 3 issues. Pro unlocks everything, no tiers.
It doesn't replace a pentest or a code audit. It catches the everyday mistakes before someone else does.
I'd love your feedback: scan your own app and tell me what's confusing or missing. I read every comment.
About Sumbrel on Product Hunt
“Find your app's security holes before hackers do”
Sumbrel was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #141 on the daily leaderboard. AI tools let you ship a SaaS in a weekend. They don't check whether your Stripe key ended up in the frontend or yourgit folder is still public. Paste your URL. Sumbrel runs 30+ checks from the outside (headers, TLS, DNS, shipped JavaScript, exposed files) and matches your libraries against 300,000+ known vulnerabilities. You get a score /100, and every issue comes with the exact prompt to paste into Cursor, Claude or Lovable to fix it. Passive by default. Free scan.
On the analytics side, Sumbrel competes within SaaS, Security and Vibe coding — topics that collectively have 48.6k followers on Product Hunt. The dashboard above tracks how Sumbrel performed against the three products that launched closest to it on the same day.
Who hunted Sumbrel?
Sumbrel was hunted by Alex ⚡ building Sumbrel. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Sumbrel including community comment highlights and product details, visit the product overview.
Alex ⚡ building Sumbrel