Let's Encrypt @letsencrypt Twitter profile

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Let's Encrypt

4 months

Does your organization rely on our certs for everyday business operations? If so, consider joining us as a sponsor this year!

Become a Sponsor

Our Projects Making encryption in transit free, automated, and easy for over 310 million websites Advancing memory safety in the Internet’s most critical codebases Bringing privacy and anonymity to...

www.abetterinternet.org

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Let's Encrypt

@letsencrypt

6 years

Ladies, if he: - is insecure - can be easily manipulated - doesn't have a private key - uses port 80 He's not your man, he's plaintext

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@letsencrypt

7 years

Let's Encrypt will offer wildcard certificates starting in 2018! Learn more and donate to support our work:

Wildcard Certificates Coming January 2018

Update, March 13, 2018 Wildcard certificate support is live. Let’s Encrypt will begin issuing wildcard certificates in January of 2018. Wildcard certificates are a commonly requested feature and we...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let's Encrypt wildcard certificates and ACMEv2 are available today! More information can be found here:

ACME v2 and Wildcard Certificate Support is Live

We’re pleased to announce that ACMEv2 and wildcard certificate support is live! With today’s new features we’re continuing to break down barriers for HTTPS adoption across the Web by making it even...

community.letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let’s Encrypt is now directly trusted by all major root programs:

Let's Encrypt Root Trusted By All Major Root Programs

As of the end of July 2018, the Let’s Encrypt root, ISRG Root X1, is directly trusted by Microsoft products. Our root is now trusted by all major root programs, including Microsoft, Google, Apple,...

letsencrypt.org

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Let's Encrypt

@letsencrypt

7 years

Wildcard certificates from Let's Encrypt are coming in January 2018.

Wildcard Certificates Coming January 2018

Update, March 13, 2018 Wildcard certificate support is live. Let’s Encrypt will begin issuing wildcard certificates in January of 2018. Wildcard certificates are a commonly requested feature and we...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

On this day in 2015, we issued our first SSL/TLS certificate as a certificate authority. Since then, we have issued over 380M certificates! Thanks for your support as we continue to make the Web more secure.

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Let's Encrypt

@letsencrypt

4 years

Naysayers: "Automation at a huge scale isn't probable..." Let's Encrypt, with a 16-person team:

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Let's Encrypt

@letsencrypt

9 years

We are trusted!

Let's Encrypt is Trusted

We’re pleased to announce that we’ve received cross-signatures from IdenTrust, which means that our certificates are now trusted by all major browsers. This is a significant milestone since it means...

letsencrypt.org

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Let's Encrypt

@letsencrypt

7 years

We've now issued more than 100,000,000 certificates!

Milestone: 100 Million Certificates Issued

Let’s Encrypt has reached a milestone: we’ve now issued more than 100,000,000 certificates. This number reflects at least a few things: First, it illustrates the strong demand for our services. We’d...

letsencrypt.org

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Let's Encrypt

@letsencrypt

5 years

The protocol we use for automated certificate management, ACME, is now finalized as an Internet standard!

The ACME Protocol is an IETF Standard

It has long been a dream of ours for there to be a standardized protocol for certificate issuance and management. That dream has become a reality now that the IETF has standardized the ACME protocol...

letsencrypt.org

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Let's Encrypt

@letsencrypt

8 years

We just issued our 5 millionth certificate!

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@letsencrypt

8 years

Yesterday, for the first time, @Mozilla telemetry shows more than 50% of page loads were encrypted with HTTPS.

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@letsencrypt

7 years

66% of page loads are now HTTPS, rising 20% from 46% on January 1st of this year! Together, we can #SecureTheWeb

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@letsencrypt

9 years

Let's Encrypt is in Public Beta!

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@letsencrypt

8 years

We’ve now issued more than 10 million certificates.

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@letsencrypt

9 months

Putting the S in HTTPS since 2015.

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@letsencrypt

9 years

Invites no longer required.

Entering Public Beta

We’re happy to announce that Let’s Encrypt has entered Public Beta. Invitations are no longer needed in order to get free certificates from Let’s Encrypt. It’s time for the Web to take a big step...

letsencrypt.org

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Let's Encrypt

@letsencrypt

4 years

Let's Encrypt has issued *1 BILLION* TLS certificates! 🎉 #WeAreOneBillion

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@letsencrypt

6 years

Chrome will begin marking all HTTP pages as "not secure" this month with the release of Chrome 68. Get started with HTTPS free-of-charge from Let's Encrypt:

Getting Started

The Let's Encrypt ACME Directory URL is: https://acme-v02.api.letsencrypt.org/directory To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority...

letsencrypt.org

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Let's Encrypt

@letsencrypt

7 years

The public ACME v2 API endpoint, including support for Wildcards, is available. More information here:

Staging endpoint for ACME v2

We’re happy to announce that our ACME v2 staging endpoint is now available for public testing. You can begin testing ACME v2 support for your client using the following directory URL: https://acme-...

community.letsencrypt.org

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@letsencrypt

6 years

. @GitHub Pages is now using Let's Encrypt certificates for their custom domains. We applaud this move forward to a more secure Web!

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@letsencrypt

6 years

Let's Encrypt has successfully issued over 1 million certificates in 1 day. We are excited to have the infrastructure to continue making the Web more secure in a big way, every day. via @firefox Telemetry

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Let's Encrypt

@letsencrypt

8 years

Let's Encrypt is no longer in beta and we have some great new sponsors!

Leaving Beta, New Sponsors

Let’s Encrypt is leaving beta today. We’re also excited to announce that founding sponsors Cisco and Akamai have renewed their Platinum sponsorships with 3-year commitments, Gemalto is joining as our...

letsencrypt.org

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Let's Encrypt

@letsencrypt

9 years

We've issued our first certificate!

Our First Certificate Is Now Live

Let’s Encrypt passed another major milestone by issuing our first certificate. You can see it in action here. Our cross signature is not yet in place, however this certificate is fully functional for...

letsencrypt.org

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Let's Encrypt

@letsencrypt

8 years

Comodo Attempting to Register Let’s Encrypt Trademarks

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Let's Encrypt

@letsencrypt

8 years

We're now managing over 10M active certificates!

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@letsencrypt

8 years

Let's Encrypt is trusted directly by @Mozilla @Firefox 50, released today! Our root, "ISRG Root X1", is included by default.

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@letsencrypt

8 years

Just passed 5 million active (unexpired) certificates.

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@letsencrypt

4 years

That amazing feeling when you look something up on @Wikipedia and there is your TLS cert, looking back at you. 😍

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@letsencrypt

7 years

2 years ago, we issued our first certificate. Now, we've issued +100M. Donate & tell us how you benefit from HTTPS!

Donate

Encryption for Everybody. For nearly ten years, Let’s Encrypt has provided billions of free TLS certificates. Each one made possible thanks to the generosity of people like you. Donate today to help...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let's Encrypt 認証局は、「ワイルドカード証明書」と「ACME v2 プロトコル」への対応を完了しました。これにより、あらゆる構成のウェブサイトにおいて SSL/TLS 証明書の取得・管理がより簡単になり、Web の世界における HTTPS 導入の障壁が軽減されます。

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Let's Encrypt

@letsencrypt

7 years

Per @Firefox Telemetry, more than 60% HTTPS page loads is now the norm!

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@letsencrypt

6 years

We've issued over 10k wildcard certificates in the first 48 hours of wildcard and ACMEv2 availability. More about wildcards and ACMEv2 can be found here:

ACME v2 and Wildcard Certificate Support is Live

We’re pleased to announce that ACMEv2 and wildcard certificate support is live! With today’s new features we’re continuing to break down barriers for HTTPS adoption across the Web by making it even...

community.letsencrypt.org

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Let's Encrypt

@letsencrypt

8 years

Issued our 500,000th cert today.

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@letsencrypt

11 months

Issuing 3M certs every day means you get the best database servers you can. CPU: 2x AMD EPYC 7542; Total 64 cores / 128 threads - Memory: 2TB 3200MT/s - Storage: 24x 6.4TB Intel P4610; NVMe SSD; 3200/3200 MB/s read/write

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Let's Encrypt

@letsencrypt

8 years

Let's Encrypt is now trusted by Java. JDK 8u101 is live and includes the IdenTrust root we use (DST Root CA X3).

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@letsencrypt

8 years

Comodo has submitted a Request for Express Abandonment for all Let’s Encrypt trademark registration applications.

Defending Our Brand [Updated]

Update, June 24 2016 We have confirmed that Comodo submitted Requests for Express Abandonment for all three trademark registration applications in question. We’re happy to see this positive step...

letsencrypt.org

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Let's Encrypt

@letsencrypt

7 years

Let's Encrypt's plans for 2018, including introducing wildcards:

Looking Forward to 2018

Let’s Encrypt had a great year in 2017. We more than doubled the number of active (unexpired) certificates we service to 46 million, we just about tripled the number of unique domains we service to...

letsencrypt.org

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Let's Encrypt

@letsencrypt

9 years

Just issued our 250,000th certificate!

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Let's Encrypt

@letsencrypt

3 years

Total certs issued by Let's Encrypt as of yesterday? 1 billion 562 million 631 thousand 049 ...forty nine

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Let's Encrypt

@letsencrypt

7 years

Let's Encrypt now serves 60M domains. Thanks for making the Web more secure through Let's Encrypt certificates!

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@letsencrypt

6 years

Happy Chrome 68 day! HTTP sites will now be marked as "not secure" in Chrome. We applaud the @googlechrome team as they make the Web more secure in a big way with this release.

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@letsencrypt

8 years

Let's Encrypt now fully supports IPv6.

Full Support for IPv6

Let’s Encrypt is happy to announce full support for IPv6. As IPv4 address space is exhausted, more and more people are deploying services that are only reachable via IPv6. Adding full support for...

letsencrypt.org

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@letsencrypt

1 year

Today we'll likely issue 3 million certs. That's 125,000 per hour. 2,083 per minute. 35 👏 every 👏 second 👏

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@letsencrypt

6 years

Chrome will start labeling all plain HTTP sites as 'not secure' in July. Here's how to get started using HTTPS on your site with Let's Encrypt:

Getting Started

The Let's Encrypt ACME Directory URL is: https://acme-v02.api.letsencrypt.org/directory To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

On July 24, Chrome will mark all plain HTTP sites as "not secure": Get started with HTTPS free-of-charge with Let's Encrypt:

Getting Started

The Let's Encrypt ACME Directory URL is: https://acme-v02.api.letsencrypt.org/directory To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority...

letsencrypt.org

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Let's Encrypt

@letsencrypt

3 years

Let's Encrypt, now serving 260,000,000 domains! 🎉

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Let's Encrypt

@letsencrypt

7 years

We just passed 40 million secured websites! Help support our growth:

Donate

Encryption for Everybody. For nearly ten years, Let’s Encrypt has provided billions of free TLS certificates. Each one made possible thanks to the generosity of people like you. Donate today to help...

letsencrypt.org

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Let's Encrypt

@letsencrypt

5 years

我们拥有中文版网站了！

Let's Encrypt - 免费的SSL/TLS证书

Let's Encrypt 是免费、开放和自动化的证书颁发机构。由非盈利组织互联网安全研究小组（ISRG）运营。

letsencrypt.org

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Let's Encrypt

@letsencrypt

9 years

Happy to announce that @GoogleChrome is a Platinum sponsor of Let's Encrypt!

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@letsencrypt

6 years

We are now encrypting over 100 million domains! Thank you to our great users, community, and sponsors who have helped us pass this milestone.

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@letsencrypt

10 years

Welcome to the new PKI: Free, open, and automatic. Let's encrypt the Web!

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Let's Encrypt

@letsencrypt

11 months

Eight years ago today.

Let's Encrypt

@letsencrypt

9 years

We've issued our first certificate!

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Let's Encrypt

@letsencrypt

7 years

We provide HTTPS certificates to 48 million websites. Is yours one of them? Donate and support our service!

Donate

Encryption for Everybody. For nearly ten years, Let’s Encrypt has provided billions of free TLS certificates. Each one made possible thanks to the generosity of people like you. Donate today to help...

letsencrypt.org

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@letsencrypt

9 years

Let's Encrypt Public Beta on December 3, 2015:

Public Beta: December 3, 2015

Let’s Encrypt will enter Public Beta on December 3, 2015. Once we’ve entered Public Beta our systems will be open to anyone who would like to request a certificate. There will no longer be a requir...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let's Encrypt now supports ACMEv2 and wildcard certificates. More information here:

ACME v2 and Wildcard Certificate Support is Live

We’re pleased to announce that ACMEv2 and wildcard certificate support is live! With today’s new features we’re continuing to break down barriers for HTTPS adoption across the Web by making it even...

community.letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

日本の Web ユーザのページアクセスのうち 69% が HTTPS です。わずか 2 年前には 50％未満でした。これは 100％暗号化されたウェブへのすばらしい進歩であり、時雨堂の @voluntas による Let's Encrypt! への継続的なスポンサーシップとサポートに感謝します

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@letsencrypt

5 years

Our dreams became reality! The ACME protocol is now an IETF standard:

The ACME Protocol is an IETF Standard

It has long been a dream of ours for there to be a standardized protocol for certificate issuance and management. That dream has become a reality now that the IETF has standardized the ACME protocol...

letsencrypt.org

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Let's Encrypt

@letsencrypt

3 years

Six years ago, encrypting the Web sounded impossible. Today we know that it's completely plausible with the help of our certificates and a strong community of supporters!

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@letsencrypt

5 years

💪🏽Encrypt the Web 💪🏽

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@letsencrypt

6 years

75% of Web pages loaded by @firefox use HTTPS! This is a huge milestone for the Web and we are happy to have contributed to it.

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@letsencrypt

6 years

"All websites should use HTTPS, even if they don't include private content, sign-in pages, or credit card details." via

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@letsencrypt

6 years

Thanks to the #CertBot team @EFF for implementing ACME v2 and making HTTPS adoption across the Web even easier.

Certbot

Tagline

certbot.eff.org

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@letsencrypt

6 years

Chrome will start labeling all plain HTTP sites as 'not secure' in July. Here's how to get started using HTTPS on your site with Let's Encrypt:

Getting Started

The Let's Encrypt ACME Directory URL is: https://acme-v02.api.letsencrypt.org/directory To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let's Encrypt now provides HTTPS to over 150M domains! Find this and other news in our annual blog post about service growth, new features, infrastructure, and finances:

Looking Forward to 2019

Let’s Encrypt had a great year in 2018. We’re now serving more than 150 million websites while maintaining a stellar security and compliance track record. Most importantly though, the Web went from...

letsencrypt.org

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@letsencrypt

8 years

Let's Encrypt can now sign ECDSA keys!

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@letsencrypt

8 years

Let's Encrypt Root to be Trusted by @mozilla (Firefox v50)

Let's Encrypt Root to be Trusted by Mozilla

The Let’s Encrypt root key (ISRG Root X1) will be trusted by default in Firefox 50, which is scheduled to ship in Q4 2016. Acceptance into the Mozilla root program is a major milestone as we aim to...

letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

NASA moved to HTTPS and used Let's Encrypt to make their services more secure. Read more at:

18F: Digital service delivery | From launch to landing: How NASA took control of its HTTPS mission

In 2015, the White House Office of Management and Budget released M-15-13, a "Policy to Require Secure Connections across Federal Websites and Web Services" the memo emphasizes the importance of...

18f.gsa.gov

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Let's Encrypt

@letsencrypt

8 years

Let's Encrypt root "ISRG Root X1" is included by default in Apple macOS 10.12.1 (available now).

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@letsencrypt

6 years

Let's Encrypt root is now trusted by all major root programs! More info at:

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@letsencrypt

7 years

Thank you to all of the Web hosting companies that implement Let's Encrypt. 100% HTTPS and a user privacy-respecting Web is in our future!

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@letsencrypt

5 years

. @RedHat is now a sponsor of Let's Encrypt!

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@letsencrypt

4 years

When you're issuing 1-2M certificates per day, you get the best database servers you can. CPU: 2x @AMD EPYC 7542; Total 64 cores / 128 threads - Memory: 2TB 3200MT/s - Storage: 24x 6.4TB Intel P4610; NVMe SSD; 3200/3200 MB/s read/write

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@letsencrypt

6 years

NASA moved to HTTPS and used Let's Encrypt to make their services more secure. Read more at:

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@letsencrypt

8 years

We've issued over 1 million certs for more than 2.4 million domains!

Our Millionth Certificate

Let’s Encrypt has issued its millionth certificate. Our first million certificates are helping to secure approximately 2.4 million domains. This milestone means a lot to a team that started building...

letsencrypt.org

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@letsencrypt

3 years

. @voluntas と時雨堂がスポンサーを継続してくれていることに心から感謝します。日本で HTTPS の採用が増え続けている中で皆さんのサポートをずっと得られているのは素晴らしいことです。

Let's Encrypt Stats

Please note that the Let's Encrypt Growth and Let's Encrypt Certificates Issued Per Day charts are undergoing updates and may not reflect the most recent data. Let's Encrypt Growth Percentage of Web...

letsencrypt.org

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@letsencrypt

9 years

We're set for general availability the week of September 14th! More details here:

Let's Encrypt Launch Schedule

Let’s Encrypt has reached a point where we’re ready to announce our launch schedule. First certificate: Week of July 27, 2015 General availability: Week of September 14, 2015 We will issue the first...

letsencrypt.org

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@letsencrypt

4 years

Memory safety vulnerabilities are one of the biggest threats to Internet security. Our parent org is taking a big step in tackling this problem: we're working with @bagder , author of curl software, and @wolfssl to make critical parts of curl memory safe.

Memory Safe ‘curl’ for a More Secure Internet

Memory safety vulnerabilities represent one of the biggest threats to Internet security. As such, we at ISRG are interested in finding ways to make the most heavily relied-upon software on the...

www.abetterinternet.org

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Let's Encrypt

@letsencrypt

3 years

1995: HTTPS introduced by Netscape. 2015: HTTPS used for 39% of web page loads globally. 2021: HTTPS used for 85% of web page loads. We've made progress, but we've got work to do. Support us with a donation to continue growing HTTPS on the Web!

Donate

Encryption for Everybody. For nearly ten years, Let’s Encrypt has provided billions of free TLS certificates. Each one made possible thanks to the generosity of people like you. Donate today to help...

letsencrypt.org

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Let's Encrypt

@letsencrypt

5 years

We did it… together! 100 *MILLION* active Let’s Encrypt certificates on the Web. Can you help us celebrate this milestone by donating $1 for every million active certs?

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@letsencrypt

8 years

Proud to play a role in encrypting 1.3M+ websites today:

HTTPS Everywhere: Encryption for All WordPress.com Sites

We’re proud to support a more secure web — now for all custom domains on WordPress.com.

wordpress.com

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@letsencrypt

4 years

We are coming up on 1 *BILLION* certificates issued by the Let's Encrypt certificate authority. Each certificate, free to get, and carrying out the mission of a more privacy-respecting Web. We are 1 billion, and we have just begun. Join us!

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@letsencrypt

3 years

Here's our servers providing 240 million websites with certs - check out how we upgraded them to be able to issue 200M certificates in 24 hours!

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@letsencrypt

9 years

Our root and intermediate certificates have been generated:

Let's Encrypt Root and Intermediate Certificates

The keys and certificates that will underlie Let’s Encrypt have been generated. This was done during a key ceremony at a secure facility today. The following objects were created: Key pair and...

letsencrypt.org

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@letsencrypt

7 years

This month, Google Chrome started warning users who add text to forms on HTTP sites. This will be a default warning soon.

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@letsencrypt

6 years

75% of Web pages loaded by @firefox use HTTPS!

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@letsencrypt

6 years

The percentage of Web pages loaded by Firefox using HTTPS has reached over 80% among U.S. users! We are thrilled to help secure the Web. (Stats via @firefox telemetry)

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@letsencrypt

5 years

RT if you were on a website today that uses a Let's Encrypt certificate.

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@letsencrypt

7 years

"You should always protect all of your websites with HTTPS, even if they don’t handle sensitive communications." via @google

Why HTTPS matters | Articles | web.dev

HTTPS protects the integrity of your website, protects the privacy and security of your users, and is a prerequisite for new and powerful web platform APIs.

web.dev

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@letsencrypt

5 months

"Scaling certificate issuance is impossible." Let's Encrypt: 😎

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@letsencrypt

4 years

Today and every day we issue ~1,041.66 certs every minute. 💪

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@letsencrypt

7 years

How @NASA moved its sites to HTTPS with Let's Encrypt!

18F: Digital service delivery | From launch to landing: How NASA took control of its HTTPS mission

In 2015, the White House Office of Management and Budget released M-15-13, a "Policy to Require Secure Connections across Federal Websites and Web Services" the memo emphasizes the importance of...

18f.gsa.gov

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@letsencrypt

7 years

Per @Firefox Telemetry, more than 50% HTTPS page loads is now the norm!

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@letsencrypt

7 years

CAA checking is now mandatory for all CAs. We applaud this update, learn more here:

Certificate Authority Authorization (CAA)

CAA is a type of DNS record that allows site owners to specify which Certificate Authorities (CAs) are allowed to issue certificates containing their domain names. It was first standardized in 2013,...

letsencrypt.org

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@letsencrypt

7 years

Support for ACME protocol, used by Let's Encrypt, now in Apache httpd (dev version), the most-used Web server.

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@letsencrypt

6 years

Getting ready to use wildcard certificates from Let's Encrypt? Here's more information about the staging endpoint for ACME v2:

Staging endpoint for ACME v2

We’re happy to announce that our ACME v2 staging endpoint is now available for public testing. You can begin testing ACME v2 support for your client using the following directory URL: https://acme-...

community.letsencrypt.org

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Let's Encrypt

@letsencrypt

6 years

Let's Encrypt and @EFF 's #Certbot makes deploying Let's Encrypt certificates on your website easier than ever. Get started today and secure your site with HTTPS:

Certbot

Tagline

certbot.eff.org

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Let's Encrypt

@letsencrypt

6 years

"Chrome will mark all HTTP sites as ‘not secure’ starting in July" via @verge :

Chrome will mark all HTTP sites as ‘not secure’ starting in July

Google sends a nudge toward the unencrypted web

www.theverge.com

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Let's Encrypt

@letsencrypt

2 years

Today we are mourning the loss of a Let’s Encrypt co-founder, Peter Eckersley. He was a kind and bright person who will deeply missed.

Peter Eckersley, may his memory be a blessing

I'm devastated to report that Peter Eckersley (@pde), one of the original founders of Let's Encrypt, died earlier this evening at CPMC Davies Hospital in San Francisco. Peter was the leader of EFF's...

community.letsencrypt.org

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Let's Encrypt

@letsencrypt

8 years

Our active certificates now cover more than 10M fully qualified domain names!

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