> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/de/ports-and-services/http-and-https-80-443/web-certificate-analysis-tools.md).
# Tools zum Scannen von Webzertifikaten
TLS-Zertifikatsprüfung mit openssl, sslyze, sslscan und Nmap-ssl-heartbleed-Checks.
### OpenSSL (Zertifikat prüfen):
```bash
openssl s_client -connect website.com:443
```
Dieser Befehl prüft ein SSL-Zertifikat eines Webservers. Er verbindet sich mit dem Server auf Port 443 und zeigt Details wie die Gültigkeit des Zertifikats, das Ablaufdatum und den Verschlüsselungstyp an.
### Sslyze (SSL-Sicherheitsprüfung):
---
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