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	<title>Let&#039;s Encrypt &#8211; Noise</title>
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	<link>https://noise.getoto.net</link>
	<description>The collective thoughts of the interwebz</description>
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	<item>
		<title>On the Importance of &#8220;Hello&#8221; and &#8220;Thanks&#8221;</title>
		<link>https://noise.getoto.net/2026/02/05/on-the-importance-of-hello-and-thanks/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 05 Feb 2026 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2026/02/05/fosdem2026.html</guid>

					<description><![CDATA[


In a recent conversation with a Let&#8217;s Encrypt subscriber, we asked them to guess how many people work at ISRG, the nonprofit behind Let&#8217;s Encrypt (and Prossimo and Divvi Up). Their guess was about 100; they&#8217;d overestimated by 72.5 ...]]></description>
		
		
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			</item>
		<item>
		<title>6-day and IP Address Certificates are Generally Available</title>
		<link>https://noise.getoto.net/2026/01/15/6-day-and-ip-address-certificates-are-generally-available/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 15 Jan 2026 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2026/01/15/6day-and-ip-general-availability.html</guid>

					<description><![CDATA[Short-lived and IP address certificates are now generally available from Let&#8217;s Encrypt. These certificates are valid for 160 hours, just over six days. In order to get a short-lived certificate subscribers simply need to select the &#8216;shortli...]]></description>
		
		
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			</item>
		<item>
		<title>A Note from our Executive Director</title>
		<link>https://noise.getoto.net/2025/12/29/a-note-from-our-executive-director-2/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Mon, 29 Dec 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/12/29/eoy-letter-2025.html</guid>

					<description><![CDATA[
    

This letter was originally published in our 2025 Annual Report.
This year was the 10th anniversary of Let&#8217;s Encrypt. We&#8217;ve come a long way! Today we&#8217;re serving more than 700 million websites, issuing ten million certificates on...]]></description>
		
		
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			</item>
		<item>
		<title>10 Years of Let&#8217;s Encrypt Certificates</title>
		<link>https://noise.getoto.net/2025/12/09/10-years-of-lets-encrypt-certificates/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 09 Dec 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/12/09/10-years.html</guid>

					<description><![CDATA[On September 14, 2015, our first publicly-trusted certificate went live. We were proud that we had issued a certificate that a significant majority of clients could accept, and had done it using automated software. Of course, in retrospect this was jus...]]></description>
		
		
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			</item>
		<item>
		<title>Decreasing Certificate Lifetimes to 45 Days</title>
		<link>https://noise.getoto.net/2025/12/02/decreasing-certificate-lifetimes-to-45-days/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 02 Dec 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/12/02/from-90-to-45.html</guid>

					<description><![CDATA[Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028.
This change is being made along with the rest of the industry, as required...]]></description>
		
		
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			</item>
		<item>
		<title>New &#8220;Generation Y&#8221; Hierarchy of Root and Intermediate Certificates</title>
		<link>https://noise.getoto.net/2025/11/24/new-generation-y-hierarchy-of-root-and-intermediate-certificates/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Mon, 24 Nov 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/11/24/gen-y-hierarchy.html</guid>

					<description><![CDATA[In a ceremony held in September, Let’s Encrypt generated two new Root Certification Authorities (CAs) and six new Intermediate CAs, which we’re collectively calling the “Generation Y” hierarchy. Now we’re moving to begin issuing certificates from this ...]]></description>
		
		
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			</item>
		<item>
		<title>Ten Years of Community Support</title>
		<link>https://noise.getoto.net/2025/10/07/ten-years-of-community-support/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 07 Oct 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/10/07/ten-yrs-community-forum.html</guid>

					<description><![CDATA[
  
    
    
      Seth Schoen was an early contributor to Let's Encrypt through his work at the Electronic Frontier Foundation. He's also one of the longest standing participants in the Let's Encrypt community support forum, so we asked him to offer ...]]></description>
		
		
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			</item>
		<item>
		<title>ACME Renewal Information (ARI) Published as RFC 9773</title>
		<link>https://noise.getoto.net/2025/09/16/acme-renewal-information-ari-published-as-rfc-9773/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 16 Sep 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/09/16/ari-rfc.html</guid>

					<description><![CDATA[Let&#8217;s Encrypt has been proud to work with the IETF to maintain ACME as an open standard since we first developed the technology a decade ago. We&#8217;re happy to announce that IETF has published our latest addition to the ACME protocol, ACME Ren...]]></description>
		
		
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			</item>
		<item>
		<title>Native ACME Support Comes to NGINX</title>
		<link>https://noise.getoto.net/2025/09/11/native-acme-support-comes-to-nginx/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 11 Sep 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/09/11/native-acme-for-nginx.html</guid>

					<description><![CDATA[
  
    
    
      NGINX and Let's Encrypt share a common vision of an open and secure web. Now, with built-in support for ACME, the world's most popular web server, reverse proxy and ingress controller for Kubernetes can simplify certificate manageme...]]></description>
		
		
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			</item>
		<item>
		<title>End of Life Plan for RFC 6962 Certificate Transparency Logs</title>
		<link>https://noise.getoto.net/2025/08/14/end-of-life-plan-for-rfc-6962-certificate-transparency-logs/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 14 Aug 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/08/14/rfc-6962-logs-eol.html</guid>

					<description><![CDATA[Let’s Encrypt operates two types of Certificate Transparency (“CT”) logs—some implement the original RFC 6962 API, and some that implement the newer Static CT API. Today we are announcing that on November 3, 2025, we will make our RFC 6962 logs read-on...]]></description>
		
		
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			</item>
		<item>
		<title>OCSP Service Has Reached End of Life</title>
		<link>https://noise.getoto.net/2025/08/06/ocsp-service-has-reached-end-of-life/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 06 Aug 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/08/06/ocsp-service-has-reached-end-of-life.html</guid>

					<description><![CDATA[Today we turned off our Online Certificate Status Protocol (OCSP) service, as announced in December of last year. We stopped including OCSP URLs in our certificates more than 90 days ago, so all Let&#8217;s Encrypt certificates that contained OCSP URLs...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>We&#8217;ve Issued Our First IP Address Certificate</title>
		<link>https://noise.getoto.net/2025/07/01/weve-issued-our-first-ip-address-certificate-2/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 01 Jul 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/07/01/issuing-our-first-ip-address-certificate.html</guid>

					<description><![CDATA[Since Let&#8217;s Encrypt started issuing certificates in 2015, people have repeatedly requested the ability to get certificates for IP addresses, an option that only a few certificate authorities have offered. Until now, they&#8217;ve had to look else...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>We&#8217;ve Issued Our First IP Address Certificate</title>
		<link>https://noise.getoto.net/2025/07/01/weve-issued-our-first-ip-address-certificate/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Tue, 01 Jul 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/07/01/issuing-our-first-ip-address-certificate/</guid>

					<description><![CDATA[Since Let&#8217;s Encrypt started issuing certificates in 2015, people have repeatedly requested the ability to get certificates for IP addresses, an option that only a few certificate authorities have offered. Until now, they&#8217;ve had to look else...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>Expiration Notification Service Has Ended</title>
		<link>https://noise.getoto.net/2025/06/26/expiration-notification-service-has-ended-2/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 26 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/26/expiration-notification-service-has-ended.html</guid>

					<description><![CDATA[Since its inception, Let’s Encrypt has been sending expiration notification emails to subscribers that have provided an email address to us via the ACME API. This service ended on June 4, 2025. The decision to end the service is the result of the follo...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>Expiration Notification Service Has Ended</title>
		<link>https://noise.getoto.net/2025/06/26/expiration-notification-service-has-ended/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Thu, 26 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/26/expiration-notification-service-has-ended/</guid>

					<description><![CDATA[Since its inception, Let’s Encrypt has been sending expiration notification emails to subscribers that have provided an email address to us via the ACME API. This service ended on June 4, 2025. The decision to end the service is the result of the follo...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>Reflections on a Year of Sunlight</title>
		<link>https://noise.getoto.net/2025/06/11/reflections-on-a-year-of-sunlight/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 11 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/11/reflections-on-a-year-of-sunlight/</guid>

					<description><![CDATA[The Certificate Transparency ecosystem has been improving transparency for the web PKI since 2013. It helps make clear exactly what certificates each certificate authority has issued and makes sure errors or compromises of certificate authorities are d...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>Reflections on a Year of Sunlight</title>
		<link>https://noise.getoto.net/2025/06/11/reflections-on-a-year-of-sunlight-2/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 11 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/11/reflections-on-a-year-of-sunlight.html</guid>

					<description><![CDATA[The Certificate Transparency ecosystem has been improving transparency for the web PKI since 2013. It helps make clear exactly what certificates each certificate authority has issued and makes sure errors or compromises of certificate authorities are d...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>How We Reduced the Impact of Zombie Clients</title>
		<link>https://noise.getoto.net/2025/06/04/how-we-reduced-the-impact-of-zombie-clients/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 04 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/04/how-we-reduced-the-impact-of-zombie-clients/</guid>

					<description><![CDATA[Every night, right around midnight (mainly UTC), a horde of zombies wakes up and clamors for &#8230; digital certificates!
The zombies in question are abandoned or misconfigured Internet servers and ACME clients that have been set to request certifica...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>How We Reduced the Impact of Zombie Clients</title>
		<link>https://noise.getoto.net/2025/06/04/how-we-reduced-the-impact-of-zombie-clients-2/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 04 Jun 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/06/04/how-we-reduced-the-impact-of-zombie-clients.html</guid>

					<description><![CDATA[Every night, right around midnight (mainly UTC), a horde of zombies wakes up and clamors for &#8230; digital certificates!
The zombies in question are abandoned or misconfigured Internet servers and ACME clients that have been set to request certifica...]]></description>
		
		
		<enclosure url="" length="0" type="" />

			</item>
		<item>
		<title>Sustaining a More Secure Internet: The Power of Recurring Donations</title>
		<link>https://noise.getoto.net/2025/05/21/sustaining-a-more-secure-internet-the-power-of-recurring-donations/</link>
		
		<dc:creator><![CDATA[Let&#039;s Encrypt]]></dc:creator>
		<pubDate>Wed, 21 May 2025 00:00:00 +0000</pubDate>
				<guid isPermaLink="false">https://letsencrypt.org/2025/05/21/power-of-recurring-donations/</guid>

					<description><![CDATA[At Let&#8217;s Encrypt we know that building a secure Internet isn&#8217;t just a technical challenge&#8212;it&#8217;s a long-term commitment. Over the past decade we&#8217;ve made enormous strides: from issuing billions of TLS certificates to continua...]]></description>
		
		
		<enclosure url="" length="0" type="" />

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