2年間のDV、OV、およびEVパブリックSSL/TLSサーバ証明書の終了
業界での2年間のパブリックSSL/TLSサーバ証明書の提供終了
On February 24, 2026, DigiCert stopped issuing 397-day public DV, OV, and EV TLS/SSL and Qualified Website Authentication Certificates (QWAC and QWAC PSD2). The new maximum TLS certificate validity is 199 days. Read our knowledge base article to learn more about the move to 199-day TLS certificates.
DigiCert implemented 199-day maximum validity to align with the CA/Browser Forum Baseline Requirements and to ensure all systems are fully aligned ahead of the March 15, 2026 industry deadline. For more information, see the DigiCert FAQ on TLS/SSL certificate validity.
注記
デジサートは、2020年8月27日午後6時（米国山岳部夏時間）（8月28日午前零時（協定世界時））をもって、2年間のパブリックSSL/TLSサーバ証明書の発行を停止しました。
Items covered in this article:
お客様側で必要となる対応
新しい397日の証明書最大有効期限を受けて、デジサートはDigiCert®複数年プランを利用して新しいパブリックSSL/TLSサーバ証明書を購入することでSSL/TLSプラン期間を最大限にすることをお勧めします。
注記
As of February 24, 2026, DigiCert TLS certificate orders are 1-year by default. Contact your account manager or DigiCert Support if you’re interested in using the 2 and 3-year plans.
Coverage limitations
CertCentral Subscription accounts and Enterprise accounts with subscription contracts don’t use DigiCert annual plans. See Annual plan limits.
DigiCert Services API統合
DigiCert Services APIを使用している場合は、申請で新しい397日の最長証明書有効期限を考慮するためにAPIワークフローを更新する必要があります。「Services API」を参照してください。
8月27日の期限までに2年間のパブリックSSL/TLSサーバ証明書が発行されなかった場合はどうなりますか？
有効期限が397日を超える保留中のパブリックSSL/TLS証明書のオーダーは、自動的に複数年プランに変更されます。
これは以下を意味します。
複数年プランは、購入からの有効期限を維持します。
例えば、2年間の証明書をオーダーした場合、複数年プランは24ヵ月間有効になります。
オーダーの最初の証明書が397日の有効期限で発行されます。
オーダーの残りのプラン期間を使用するには、オーダーの最後の397日間内に証明書を再発行する必要があります。
How does this affect my existing 1-year public TLS certificates?
This change doesn’t affect active certificates with a validity greater than 199 days issued before the February 24, 2026, deadline. These certificates remain trusted until they expire.
For example, on February 1, 2026, you bought a 1-year OV TLS certificate. We issued the certificate on February 3, 2026. When the certificate nears its expiration date, instead of renewing another 1-year TLS certificate, you renew it with a 199-day certificate on an annual plan.
How does this affect my 1-year certificate reissues and duplicate issues?
The shortened maximum certificate lifecycle period of 199 days does affect public 1-year TLS certificates reissues and duplicates. Now, when you reissue or duplicate a 1-year TLS certificate, the new certificate's validity can’t exceed 199 days. This means some reissued certificates may expire before the order expires.
To use the remaining validity included with the order, reissue your certificate during the final 199 days of the order. You may request reissues with a validity of up to 199 days, or until the order expires, whichever is sooner.
On February 23, 2026, we issued your 1-year Basic OV TLS certificate, your original certificate. This certificate has a validity of 365 days and expires on February 23, 2027, at the same time, the order expires.
Order validity term: February 23, 2026 – February23, 2027 (365 days)
Certificate validity term: February 23, 2026 – February23, 2027 (365 days)
On February 25, 2026, the day after DigiCert implemented the new 199-day maximum validity change, you reissue the certificate. This reissued certificate has a maximum validity of 199 days and expires on September 12, 2026.
First reissued certificate validity term: February 25, 2026 – September 12, 2026 (199 days)
On September 9, 2026, you reissue the certificate. This reissued certificate has a validity of 167 days because certificate validity can’t exceed the order validity.
Second reissued certificate validity term: September 9, 2026 – February 23, 2027 (167 days)
If you need to reissue a 1-year public TLS certificate and have questions about what to expect during the reissue, contact your account manager or DigiCert Support before reissuing it.
How does this affect my public TLS/SSL certificate renewals?
The renewal process remains the same. You can reissue a TLS certificate at any time and renew a TLS order up to 90 days before it expires.
Maximum validity period timeline for public TLS/SSL in the CA/Browser Forum
On February 24, 2026, DigiCert began issuing 199-day public TLS certificates in accordance with the new industry requirements. However, the maximum validity for TLS certificates doesn't stay at 199 days for long. In early 2027, the maximum validity is reduced again to 99 days. Then, in early 2029, the maximum validity is reduced one more time to 46 days. To learn more about reducing public TLS certificate validity to 46 days, read our blog, TLS Certificate Lifetimes Will Officially Reduce to 47 days.
CA/Browser Forum | DigiCert | ||
|---|---|---|---|
Maximum certificate validity | Due date | Maximum certificate validity 1 | Timeline |
200 days | Between March 15, 2026, and March 15, 2027 | 199 days | Between February 24, 2026, and early 20272 |
100 days | Between March 15, 2027, and March 15, 2029 | 99 days | Between early 2027 and early 20292 |
47 days | After of March 15, 2029 | 46 days | After early 20292 |
1DigiCert's maximum certificate validity is one day shorter than that allowed by the CA/Browser Forum. We do this to avoid exceeding the maximum permitted validity. 2Future release dates are subject to change based on the latest CA/Browser Forum requirements. | |||