FREE SCAN — 150 founder credits, no card

Scan Your App for Weak TLS

Scan your TLS config for deprecated protocols and weak ciphers.

What Is Weak TLS?

TLS encrypts traffic between your users and your server, but a misconfigured TLS setup undermines that protection. Allowing deprecated protocols like TLS 1.0/1.1 exposes you to downgrade attacks (POODLE, BEAST) that can expose encrypted traffic — including payment and session data. Weak cipher suites, expired or mismatched certificates, and missing HSTS round out the common findings. We scan your live TLS configuration.

How Weak TLS Shows Up

Deprecated protocols enabled

TLS 1.0 and 1.1 are vulnerable to downgrade and protocol attacks. Only TLS 1.2 and 1.3 should be allowed.

Weak cipher suites

Ciphers without forward secrecy, or known-weak ones (RC4, 3DES), let captured traffic be decrypted.

Certificate problems

Expired, self-signed, mismatched, or incomplete-chain certificates break trust and enable interception.

Missing HSTS

Without HSTS, a single plaintext request can be downgraded and intercepted before HTTPS is enforced.

How the Sable Scan Detects It

Protocol & cipher analysis

We test which TLS versions and cipher suites your server accepts and flag the weak ones.

Certificate validation

We check certificate validity, chain, and expiry.

HSTS grading

We verify HSTS presence, max-age, and includeSubDomains as part of your headers grade.

Check Your App for Weak TLS

Create a free account and let the agents test your app. Every finding is validated with a proof-of-concept and remediation. 150 founder credits, no credit card.

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Frequently Asked Questions

Why disable TLS 1.0 and 1.1?
They are deprecated and vulnerable to downgrade and protocol attacks (POODLE, BEAST) that can expose encrypted traffic. Modern browsers have dropped them. Allow only TLS 1.2 and 1.3. Sable reports exactly which protocols your server accepts.
What is HSTS and why does it matter?
HTTP Strict Transport Security tells browsers to only ever connect over HTTPS, preventing downgrade and SSL-stripping attacks. Without it, the first request can be intercepted in plaintext. Sable grades your HSTS configuration alongside the rest of your security headers.
Is the security scan really free?
Yes. The Headers Scan runs instantly with no signup. For the full agent scan you create a free account and get 150 founder credits with no credit card required — enough to run real scans against your app on demand. Paid credit packs and monthly tiers exist for continuous testing, but you can start for free.
How does Sable scan my app?
Sable runs autonomous pentesting agents (pen-scout, pen-recon, pen-triage, pen-fixer, pen-compliance) that map your attack surface, test against the OWASP Top 10, validate every finding with a proof-of-concept, and re-test after you ship a fix. You chat with the agents on demand instead of waiting weeks for a manual engagement.
Will the scan break or slow down my production app?
No. Scans are designed to be safe and non-destructive. We demonstrate impact with proof-of-concept evidence rather than causing damage, and we never exfiltrate or alter your data.

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