Web app security audits, by a team that gives a damn.
Our security team reviews your app end-to-end. In days, not weeks, you get a 0-100 score, a fix list, and an FPSEC certificate you can share.
Top findings
120+ checks · 10 areas- ✓TLS 1.2+ enforcedPass
- ✓HSTS header presentPass
- !Content-Security-PolicyWarning
- ✓Session cookie HttpOnlyPass
- ✕MFA enforcementFail
- ✕Exposed .env backupsFail
Three things, in order of depth.
The more access you give us, the more useful the report. A URL is the minimum. A read-only repo unlocks the deepest review.
URL
We need your production or staging URL — anything reachable over HTTPS.
App access
A read-only test account (or API key) so we can exercise the authenticated flows: login, password reset, member areas, admin panels.
Source code
Optional but recommended. A read-only clone of the repo lets the security team review the parts a scanner can't see — auth logic, business rules, input validation.
Ten coverage areas. One score.
Every AppCheck runs the same coverage matrix — so a 78 in one app means the same thing as a 78 in another.
TLS & certificates
Protocol version, chain trust, expiry, HSTS, OCSP stapling, and downgrade resistance.
Security headers
CSP, X-Frame-Options, HSTS, Referrer-Policy, Permissions-Policy, COOP/COEP.
Authentication & MFA
MFA availability, password policy, lockout, credential stuffing exposure (HIBP).
Exposed endpoints
Admin panels, debug pages, .git, .env backups, swagger, phpinfo, and more.
OWASP Top 10
Probes for SQLi, XSS, SSRF, command injection, IDOR/BOLA, and broken access control.
Dependency risk
Known CVEs, outdated packages, suspicious post-install scripts, license flags.
DNS & email
SPF, DKIM, DMARC, CAA, DNSSEC, MX hygiene to protect your domains from spoofing.
API security
JWT handling, rate limiting, CORS posture, schema validation, BOLA heuristics.
Source-code review
When you share the repo, the security team reviews auth, input validation, crypto, and secrets handling.
Audit-grade results without the audit-grade price.
AppCheck is the fastest way to validate your external security posture between pen tests — and the easiest way to prove it to the people who ask.
Score, not surprises
A clear 0-100 score with grade bands (Strong / Fair / At risk) that maps to remediation effort, not raw CVE counts.
A team that knows your stack
Our security team reviews your app end-to-end — supported by AI-native automation, but with a human verifying every finding and writing the report in plain language.
Certificate your posture
Share a tamper-evident FPSEC certificate valid for 360 days — with 2 free rescans and re-issued certificates within 3 months.
Source-aware when you allow it
Share a read-only repo clone and the team reviews auth, input validation, secrets, and crypto in the actual code, not just the running surface.
Actionable fixes
Every failing check comes with the exact header, flag, config change, or code path you need to fix, with links to the relevant standard.
Made for SaaS
Designed for hosted multi-tenant apps: auth flows, public APIs, marketing sites, and admin consoles.
From access granted to certificate in days, not weeks.
Send us the URL, a test account, and (optionally) a repo. We do the rest.
- 01
Grant access
Send the URL, a read-only test account, and a Git URL for the source (optional). We confirm scope the same business day.
- 02
We audit
The security team runs the audit with AI-native automation in support — 120+ checks across TLS, headers, cookies, auth, exposed endpoints, OWASP, dependencies, DNS, API, and your source.
- 03
We verify
Every finding is reviewed by a human, business context is added, and the report is written in plain language.
- 04
Score & certificate
You receive the 0-100 score, the prioritised fix list, the team's narrative, and the FPSEC certificate — usually within 1-2 business days.
What your score actually means.
AppCheck grades use calibrated bands that align to common procurement and compliance thresholds.
| Band | Score | Meaning | Suggested action |
|---|---|---|---|
| Strong | 80-100 | Posture meets modern SaaS expectations. | Embed the certificate in your trust centre; renew after 360 days. |
| Fair | 60-79 | Generally OK with gaps; expect follow-up questions in procurement. | Fix all 'fail' findings, then use one of your 2 free rescans for a fresh certificate. |
| At risk | 0-59 | Material weaknesses visible to anyone scanning your domain. | Block releases; use your free rescans as you ship each fix. |
Ready for your AppCheck?
Send us the URL, app access, and (if you can) your source. We confirm the same day, deliver the score and certificate in days, not weeks. €500 per audit.