See a recorded Q&A with senior officers of CA/B Forum about the changes. LEARN MORE >>
A blog explains what the changes are and why they were made.
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Humans can’t keep up, so let your computers handle it.
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There are 3 ways for you to proceed:
The annual certificate renewal cycle you are used to is coming to an end. Starting in March 2026, the maximum lifetime will begin to drop. In 2029, you’ll have to renew certificates every month.
If you haven’t automated your certificate management, you are probably already experiencing outages as a result of missed renewals. This problem will get worse.
But there’s good news, too. DigiCert can help you to automate your certificate management. This will prevent even the outages you are getting with annual certificates.
Public certificates aren’t always required. For internal systems, a private PKI gives you more flexibility and control.
Just as some public certificates should be on private PKI, others should be on a different public PKI. New ones are emerging.
The X9 PKI is designed for the financial industry, but may be extended to other applications. It was created by the financial industry through the recently launched X9 PKI Industry Forum so that non-browser financial applications would not be subject to rules designed for public browser certificates.
This four-part series dives deep into practical, real-world automation scenarios. It’s designed to help teams streamline certificate management and prepare for what’s next: achieving crypto-agility and a modern PKI built for scale, automation, and compliance.
Part 1 - we walk through installing automation clients on both Windows and Linux, laying the groundwork for certificate automation.
Part 2 - explores how to automate the DNS-01 challenge, comparing DIY methods using Certbot and API tokens with a fully integrated solution from DigiCert and UltraDNS.
Part 3 - we focus on the tasks and environments where ACME alone doesn’t cut it
Part 4 - we explore real-world scenarios where organizations relied on public certificates but achieved greater efficiency, control, and scalability by transitioning to internal PKI.
The major one is that the maximum lifetime The major one is that the maximum lifetime for publicly trusted web server TLS/SSL certificates will drop from the current 398 days to 200 days in March 2026, to 100 days in March 2027, and then to 47 days in March 2029. Certificates issued before those dates will be good for the lifetime at the time they were issued.
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