惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

Stack Overflow Blog
Stack Overflow Blog
N
News | PayPal Newsroom
阮一峰的网络日志
阮一峰的网络日志
月光博客
月光博客
T
Tailwind CSS Blog
博客园 - 叶小钗
博客园 - 【当耐特】
Apple Machine Learning Research
Apple Machine Learning Research
B
Blog RSS Feed
Know Your Adversary
Know Your Adversary
P
Privacy International News Feed
cs.CL updates on arXiv.org
cs.CL updates on arXiv.org
Project Zero
Project Zero
美团技术团队
雷峰网
雷峰网
Martin Fowler
Martin Fowler
P
Privacy & Cybersecurity Law Blog
T
The Blog of Author Tim Ferriss
S
Schneier on Security
V
V2EX
Cisco Talos Blog
Cisco Talos Blog
Blog — PlanetScale
Blog — PlanetScale
G
GRAHAM CLULEY
J
Java Code Geeks
V
Visual Studio Blog
N
Netflix TechBlog - Medium
Threat Intelligence Blog | Flashpoint
Threat Intelligence Blog | Flashpoint
Cyberwarzone
Cyberwarzone
Recent Announcements
Recent Announcements
C
CXSECURITY Database RSS Feed - CXSecurity.com
让小产品的独立变现更简单 - ezindie.com
让小产品的独立变现更简单 - ezindie.com
N
News and Events Feed by Topic
Forbes - Security
Forbes - Security
GbyAI
GbyAI
奇客Solidot–传递最新科技情报
奇客Solidot–传递最新科技情报
The Hacker News
The Hacker News
Application and Cybersecurity Blog
Application and Cybersecurity Blog
The Cloudflare Blog
腾讯CDC
爱范儿
爱范儿
Exploit-DB.com RSS Feed
Exploit-DB.com RSS Feed
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
罗磊的独立博客
T
Threatpost
大猫的无限游戏
大猫的无限游戏
NISL@THU
NISL@THU
Cloudbric
Cloudbric
C
CERT Recently Published Vulnerability Notes
C
Check Point Blog
Microsoft Azure Blog
Microsoft Azure Blog

Let's Encrypt

The difficulty of making sure your website is broken Simplifying Certificate Renewals for Millions of Domains with ACME Renewal Information (ARI) Six-Day and IP Address Certificates Available in Certbot Shorter Certificate Lifetimes and Rate Limits DNS-PERSIST-01: A New Model for DNS-based Challenge Validation On the Importance of "Hello" and "Thanks" 6-day and IP Address Certificates are Generally Available 10 Years of Let's Encrypt Certificates Decreasing Certificate Lifetimes to 45 Days New "Generation Y" Hierarchy of Root and Intermediate Certificates Ten Years of Community Support ACME Renewal Information (ARI) Published as RFC 9773 Native ACME Support Comes to NGINX End of Life Plan for RFC 6962 Certificate Transparency Logs OCSP Service Has Reached End of Life We've Issued Our First IP Address Certificate Expiration Notification Service Has Ended Reflections on a Year of Sunlight How We Reduced the Impact of Zombie Clients Sustaining a More Secure Internet: The Power of Recurring Donations Ending TLS Client Authentication Certificate Support in 2026 How Pebble Supports ACME Client Developers Ten Years of Let's Encrypt: Announcing support from Jeff Atwood We Issued Our First Six Day Cert Encryption for Everybody Scaling Our Rate Limits to Prepare for a Billion Active Certificates Ending Support for Expiration Notification Emails Announcing Six Day and IP Address Certificate Options in 2025 Announcing Certificate Profile Selection Ending OCSP Support in 2025 Intent to End OCSP Service More Memory Safety for Let’s Encrypt: Deploying ntpd-rs Let’s Encrypt Continues Partnership with Princeton to Bolster Internet Security Takeaways from Tailscale’s Adoption of ARI An Engineer’s Guide to Integrating ARI into Existing ACME Clients Deploying Let's Encrypt's New Issuance Chains New Intermediate Certificates Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost A Year-End Letter from our Vice President Our role in supporting the nonprofit ecosystem Increase your security governance with CAA Shortening the Let's Encrypt Chain of Trust ISRG’s 10th Anniversary Improving Resiliency and Reliability for Let’s Encrypt with ARI Thank you to our 2023 renewing sponsors A Look into the Engineering Culture at ISRG Let’s Encrypt improves how we manage OCSP responses A New Life for Certificate Revocation Lists Nurturing Continued Growth of Our Oak CT Log TLS Beyond the Web: How MongoDB Uses Let’s Encrypt for Database-to-Application Security Let’s Encrypt Receives the Levchin Prize for Real-World Cryptography New Major Funding from the Ford Foundation TLS Simply and Automatically for Europe’s Largest Cloud Customers Making the Web safer and more secure for everyone Speed at scale: Let’s Encrypt serving Shopify’s 4.5 million domains Preparing to Issue 200 Million Certificates in 24 Hours The Next Gen Database Servers Powering Let's Encrypt A Year-End Letter from the Executive Director of Let's Encrypt and ISRG Extending Android Device Compatibility for Let's Encrypt Certificates Standing on Our Own Two Feet [Updated] Let's Encrypt's New Root and Intermediate Certificates Let's Encrypt Has Issued a Billion Certificates Multi-Perspective Validation Improves Domain Validation Security How Let's Encrypt Runs CT Logs Onboarding Your Customers with Let's Encrypt and ACME Introducing Oak, a Free and Open Certificate Transparency Log Transitioning to ISRG's Root The ACME Protocol is an IETF Standard Facebook Expands Support for Let’s Encrypt Looking Forward to 2019 Let's Encrypt Root Trusted By All Major Root Programs Engineering deep dive: Encoding of SCTs in certificates Looking Forward to 2018 ACME Support in Apache HTTP Server Project Wildcard Certificates Coming January 2018 Milestone: 100 Million Certificates Issued ACME v2 API Endpoint Coming January 2018 OVH Renews Platinum Sponsorship of Let's Encrypt Let’s Encrypt 2016 In Review Launching Our Crowdfunding Campaign Our First Grant: The Ford Foundation Squarespace OCSP Stapling Implementation Introducing Internationalized Domain Name (IDN) Support ISRG Legal Transparency Report, January 2016 - June 2016 What It Costs to Run Let's Encrypt Let's Encrypt Root to be Trusted by Mozilla Full Support for IPv6 Defending Our Brand [Updated] Progress Towards 100% HTTPS, June 2016 Leaving Beta, New Sponsors ISRG Legal Transparency Report, July 2015 - December 2015 New Name, New Home for the Let's Encrypt Client Software Our Millionth Certificate OVH Sponsors Let's Encrypt Entering Public Beta Facebook Sponsors Let's Encrypt Public Beta: December 3, 2015 Why ninety-day lifetimes for certificates? The CA's Role in Fighting Phishing and Malware Let's Encrypt is Trusted
Resources for Certificate Chaining Help
2021-10-01 · via Let's Encrypt

By Jacob Hoffman-Andrews ·

As planned, the DST Root CA X3 has expired and we’re now using our own ISRG Root X1 for trust. We used a cross-sign with DST Root CA X3 to gain broad trust for our certificates when we were just starting out. Now our own root is widely trusted.

For most websites, it was just another day on the Internet, but inevitably with such a big change some sites and configurations have issues. Our overview of the planned expiration is here. You can read about what we’ve done to make the process smoother. Most problems can be solved by updating the software on the machine that is having trouble.

You may also find these links helpful:

Our certificate compatibility page.

Workarounds for OpenSSL 1.0.2.

Whenever there is a significant change to our API, we post in the API Announcements category in our community forum. Sign in and click the bell for notifications to be sent to your email! If you want to hear even more from Let’s Encrypt and the nonprofit team behind it, subscribe to our newsletter. You’ll only receive a handful of emails each year.

We (and our community) are here for you! If you have any questions about this change, search on our community forum or post on the thread we have to help you with this very topic.

Supporting Let’s Encrypt

As a nonprofit project, 100% of our funding comes from contributions from our community of users and supporters. We depend on their support in order to provide our services for the public benefit. If your company or organization would like to sponsor Let’s Encrypt please email us at sponsor@letsencrypt.org. If you can support us with a donation, we ask that you make an individual contribution.