About Tripline

Tripline exists because the tools that show you what attackers can see were built for enterprise budgets — and the small teams who need them most had nothing between guesswork and a five-figure contract.

The problem we kept seeing

Small SaaS and app teams ship fast and rarely have a security person. Every deploy can quietly open a new door — a leaked .env, a forgotten staging subdomain, a spoofable domain, an exposed API. Attackers find these automatically. Founders usually find out the hard way.

What we built

Tripline is an external attack-surface scanner you can run in about 90 seconds with nothing but a URL. It checks your front end and back end across your main site and its subdomains, scores your exposure, and — unlike a raw vulnerability dump — tells you in plain language exactly how to fix each finding. No agent, no credentials, no setup.

How we think about it

• Honest findings. We report only what we actually detect, ranked fairly. No invented urgency.
• Safe by design. Every scan is passive and external, and the scanner refuses to touch anything it shouldn't.
• Useful in five minutes. A security tool only helps if it gets opened. We optimise for clarity over jargon.

Who it's for

Founders, indie hackers, and small product teams (roughly 1–25 people) running a live web product without a dedicated security budget — especially around a launch, a new release, or a customer security review.

Questions or feedback? hello@tripline.io.