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CRT sh

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Free
Updated 11 March 2025
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Crt.sh is a website that allows users to search for SSL/TLS certificates of a targeted domain, providing transparency into certificate logs. The site is open-source and provides a GUI format for easy information gathering. Users can enter a target domain and retrieve certificate IDs, which can be clicked on to reveal further information on the certificate identity. This tool is useful for identifying potential security risks, investigating certificate-related incidents, and ensuring the integrity of an organization's digital certificates. The site also provides information on certificate algorithms in ciphertext format. Crt.sh is a valuable resource for cybersecurity professionals to monitor and manage digital certificates.

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