A TLS certificate inspector for iPhone, iPad, and Mac. Inspect a website, review its trust chain and security signals, and export certificates for debugging.
Download on the App Store · Website
- Inspect any HTTPS endpoint. Enter a host or URL, follow redirects, and review the certificate chain served at each hop.
- Understand trust and revocation. Check system trust, hostname coverage, validity, OCSP/CRL status, weak cryptography, and signs of interception.
- Browse certificate details. Explore X.509 fields, SANs, key usage, public keys, fingerprints, Certificate Transparency logs, and extensions.
- Use Safari and Share. Inspect the current page from Safari or send a URL to Inspect from another app.
- Watch observed hosts. Live Monitor uses a local packet tunnel to collect TLS observations and track certificate changes while you browse.
- Export and compare. Share DER certificates or copy individual certificates and full chains as PEM.
| Live Monitor | Host details | Certificate chain |
|---|---|---|
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See CONTRIBUTING.md for setup, architecture, local commands, screenshots, and release workflows.
BSL 1.1 — free to use, modify, and redistribute; paid app store distribution requires permission. Converts to Apache-2.0 on 2030-03-23. See LICENSE.