Attack Surface
FREESee what an attacker can see about you from the outside.
- Every internet-facing asset of yours
- Indicators only, nothing is attacked
We test your web app and APIs the way a real attacker would, prove what is really exploitable, and hand you the report auditors ask for. In 24 hours, with or without your source code.
Or book a demo with our team →Trusted by security-first teams across Europe

Built in Europe · Research collaboration with the Karlsruhe Institute of Technology (KIT)
Most teams start with one of these three situations.
Your first enterprise customer or a partner wants proof that your app has been tested. Get a report auditors accept in 24 hours, at a fixed price instead of 4–6 weeks and €10k–30k.
See the pentestKeep your evidence current with a full pentest every month, instead of one report that is stale the day it arrives.
Test new features as they ship. Every finding comes with a step-by-step fix, and the retest is included.
For engineering teamsNo security background needed: four steps, one picture.
We look at your digital property from the street, like any stranger could, and list every house that belongs to you, including the forgotten ones. We only look. We never touch anything.
See your attack surfaceWith your permission, our AI tests every door and window of that web app or API like a real attacker would: with the key, a lockpick, a crowbar. It keeps a photo of everything that really opens. With your blueprints (your source code) it checks inside the walls too.
How the pentest worksFor every open door you get a ready-made repair, so your team only has to review and approve it. Then we try the door again.
About the betaEvery new feature is a new door. Each month we test the house again, so your proof never goes out of date.
See ProfessionalYour part is small: a URL and a yes. No security expertise needed.
Traditional scanners flood your backlog. An independent verifier re-tests findings against the live app, and SQUR marks any it could not confirm.
SQUR actually exploits vulnerabilities and proves them: a working exploit for every confirmed finding, not a list of maybes.
A separate agent re-tests every finding against the live app, so you get labelled, deduplicated results instead of scanner noise.
Step-by-step remediation for every finding, and a free retest to confirm the fix works.
| Vulnerability scanner | Traditional pentest | SQUR | |
|---|---|---|---|
| Proof for every finding | No, it flags possible issues | Yes | Yes, a working exploit |
| Results in | Minutes | 4–6 weeks | 24 hours |
| Price | Subscription | €10k–30k | €1,995, or €995 a month |
Benchmarked against the best human pentester in the field, SQUR matched their quality and returned the result in 24 hours instead of weeks. Automated triage at human-equivalent precision.
100% success on IDOR, SQLi, SSRF, XXE, GraphQL, and Business Logic challenges.
SQUR discovered a mass assignment vulnerability that traditional scanners overlooked. 2 agents confirmed the finding, mapping 4 exploitable fields.
Read case study arrow_forwardSQUR automatically disproved a JSON Parameter Pollution false positive through 8 test variations, preventing wasted engineering time.
Read case study arrow_forwardWhat our customers say
"SQUR made security testing refreshingly simple. It uncovered issues we didn't even realize were there - fast, clear, and without the usual stress of pentesting. We were genuinely impressed with the results. Highly recommended."
"SQUR is super easy to set up and the pentest report is ready next day. The free retest is a sweet thing. Pentesting must not be once a year anymore."
"At bitExpert, we manage multiple projects simultaneously. Tools that optimize our workflows are invaluable. By reducing pentest costs and increasing speed, we can ensure security without delaying development - a significant advantage for our team."
Recognized across Europe
A traditional pentest costs €10k–30k and takes 4–6 weeks. SQUR has fixed prices and results in 24 hours.
See what an attacker can see about you from the outside.
One full pentest of one web app or API.
A full pentest every month, so your evidence stays current.
Pentest and fix in 24 hours.
All prices exclude VAT. Any VAT due depends on your location and VAT status. Free trial and bulk credits available.
First results in 24 hours. No security expertise needed. A fixed price, with the retest included.
Not ready? See what attackers can see about you first.
Autonomous Remediation: every confirmed finding arrives as a pull request on your GitHub repository, with the fix and a regression test. Your team reviews and merges.
Whitebox Autonomous Pentesting with Autonomous Remediation. Works with GitHub.