47-Day Hero

47-Day TLS/SSL Certificates:
Are you ready?

As of March 2026, you will have to renew certificates every 200 days. In 2029, you'll have to renew every 47 days.

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Renewals Every Month? Only Automation Can Keep Up.

By 2029, certificates will live for just 47 days. The annual renewal cycle that once felt manageable is about to disappear.

Without automation, the risk of missed renewals, downtime, and outages skyrockets. But with DigiCert automation, certificate management runs seamlessly in the background-renewing, deploying, and staying compliant without the chaos.

Stay secure. Stay ahead. Automate now.

 

47-Days Blade Automatinn is the Solution

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Consider a Private PKI

Public certificates aren’t always required. For internal systems, a private PKI gives you more flexibility and control.

  • Set your own certificate policies, including longer lifespans than the 47-day public TLS limit
  • Issue and manage certificates entirely within your own infrastructure
  • Simplify operations by consolidating fragmented internal CAs
47-Day Blade

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Get Off the Web PKI

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.

47-Days Blade
Automation Series

FROM CHAOS TO CONTROL:

Automating PKI for Modern Workflows

Our Automation Series is back with Season 2, a four-part deep dive into real-world integration scenarios that help teams streamline certificate management from end to end.

This season focuses on how automation unlocks seamless integrations across your ecosystem—simplifying workflows, reducing manual effort, and ensuring consistency at scale. Each session provides practical guidance and proven strategies your team can put to work immediately.

Watch Season 1 on-demand here >

Answers to All Your Questions

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.

If you manage your certificates manually, it will start getting harder to keep up with the work next year. In 2029, it will be completely impractical to do so. You have 3 options based on your specific use case: Automate your certificate renewals, move the certificates to a private PKI, or, for certain applications, adopt the new X9 PKI.

A private PKI runs entirely within your own networks. It and the certificates it manages are not accessible or trustworthy outside your networks. If your certificates can work this way, then a private PKI is the most secure and appropriate solution for you.

Automation using open-source tools and standards usually works but does not scale. If you have more than a few certificates, you need a system that can track all the certificates and make changes to policy and their management in a coordinated way. If not, and you need to make a change, you must work on every affected server individually. Also, only a professional CLM solution will provide discovery and inventory of certificates, policy management, and other critical features.

The X9 PKI is a public PKI, but independent of the Web PKI which is run by web browsers and the CA/B Forum. X9 is managed by an ANSI committee. It was designed to meet the needs of the financial services industry but is available to other industries and may meet their needs as well. In the short term, the main use case will be for mutual TLS (mTLS) communications among financial services and with their customers.

  • Q: What changes in certificate lifetime will happen?
  • Q: What do I have to do in response to these changes and how urgent is it?
  • Q: What is a private PKI and why would I use one?
  • Q: Why would I adopt a full Certificate Lifecycle Management (CLM) system rather than manage the certificate automation myself?
  • Q: What is the X9 PKI?
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The Total Economic Impact of DigiCert ONE 

Forrester estimates a composite organization achieved 312% ROI and a Net Present Value of $10.1M with DigiCert ONE.

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