Sectigo Launches Open-Source Tool to Strengthen Certificate Transparency Compliance
Event summary
- Sectigo released ctlint, an open-source linting tool to enhance Certificate Transparency (CT) compliance for SSL/TLS certificates.
- Developed by Sectigo’s Distinguished Engineer Rob Stradling, ctlint verifies compliance with CT policies enforced by major web browsers.
- Sectigo aims to reduce industry risk and improve trust for all internet users by open-sourcing ctlint for any Certificate Authority (CA) to use.
- Sectigo holds more combined leadership positions in the CA/Browser Forum and ETSI than any other organization in history.
The big picture
Sectigo’s launch of ctlint underscores the growing complexity of Certificate Transparency compliance amid shortening certificate lifespans and heightened regulatory scrutiny. By open-sourcing the tool, Sectigo is positioning itself as a leader in fostering industry-wide collaboration and strengthening digital trust. The move aligns with broader trends toward automation and standardization in certificate lifecycle management, reflecting Sectigo’s long-standing role in delivering essential technical infrastructure for the public CA ecosystem.
What we're watching
- Adoption Pace
- How quickly other CAs will integrate ctlint into their compliance workflows.
- Industry Impact
- Whether open-sourcing ctlint will significantly reduce misissuance risks across the WebPKI ecosystem.
- Regulatory Influence
- The extent to which Sectigo’s leadership in standards bodies will shape future CT compliance requirements.
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