すべてのユーティリティ
TLS
TLS 証明書インスペクター
ポート 443 のホストの証明書 subject、発行者、有効期限を表示します。
システムの信頼ストアに対して証明書チェーンを検証します（DE のサーバーから）。信頼チェック失敗は、プロキシ、ウイルス対策、ISP による TLS 傍受の兆候であることが多いです。
このツールについて
Run a TLS inspector online to analyze certificate chains, protocol versions, and cipher support for any endpoint. This free SSL TLS checker helps engineering teams identify handshake weaknesses before customers are affected.
Use the report to verify secure defaults after proxy changes, CDN updates, or certificate renewals. Better TLS posture improves compliance readiness and reduces browser trust warnings.
よくある質問
- What does the TLS inspector test?
- It inspects certificate validity, protocol negotiation, and cipher compatibility to highlight security and interoperability issues.
- Is this useful after certificate renewal?
- Yes, it confirms that the new chain is valid and correctly served across the expected hostname and port.
- Can TLS inspection help with compliance audits?
- It provides practical evidence about encryption posture that is often required during security and compliance reviews.