{"id":284929,"date":"2026-10-08T19:57:17","date_gmt":"2026-10-08T19:57:17","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/"},"modified":"2026-10-08T19:57:17","modified_gmt":"2026-10-08T19:57:17","slug":"lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/","title":{"rendered":"Let&#8217;s Encrypt cuts certificate lifetimes to 64 days starting February 2027"},"content":{"rendered":"<div>\n<p>Let&#8217;s Encrypt is continuing a push toward tighter security by reducing free SSL\/TLS certificate lifetimes from 90 days to 64 days, starting February 10, 2027. For administrators already implementing modern <a href=\"https:\/\/en.wikipedia.org\/wiki\/Automatic_Certificate_Management_Environment\">ACME<\/a> clients that support <a href=\"https:\/\/letsencrypt.org\/2024\/04\/25\/guide-to-integrating-ari-into-existing-acme-clients\">ARI<\/a> (ACME Renewal Information), the change should be seamless. For those still relying on hardcoded renewal schedules or manual processes, February will be the deadline to update before certificates start expiring unexpectedly.<\/p>\n<p>Starting on October 14, Let&#8217;s Encrypt will begin testing the 64-day certificates, and interested users can opt in to test their setups before production goes live.<\/p>\n<p><a href=\"https:\/\/arstechnica.com\/information-technology\/2015\/10\/with-goal-of-universal-https-lets-encrypt-reaches-important-milestone\/\">Prior to Let&#8217;s Encrypt&#8217;s launch in early 2016<\/a>, certificates were often issued for as long as one to three years. The service started with 90-day certificates to force renewal automation that didn&#8217;t previously exist. Shorter certificate validity periods limited vulnerabilities from private key thefts and encouraged accelerated <a href=\"https:\/\/en.wikipedia.org\/wiki\/HTTPS\">HTTPS<\/a> adoption across the web.<\/p>\n<p><a href=\"https:\/\/arstechnica.com\/gadgets\/2026\/10\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/\">Read full article<\/a><\/p>\n<p><a href=\"https:\/\/arstechnica.com\/gadgets\/2026\/10\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/#comments\">Comments<\/a><\/p>\n<\/div>\n<p class=\"wpematico_credit\"><small>Powered by <a href=\"http:\/\/www.wpematico.com\" target=\"_blank\">WPeMatico<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Let&#8217;s Encrypt is continuing a push toward tighter security by reducing free SSL\/TLS certificate lifetimes from 90 days to 64 days, starting February 10, 2027. For administrators already implementing modern ACME clients that support ARI (ACME Renewal Information), the change should be seamless. For those still relying on hardcoded renewal schedules or manual processes, February will be the deadline to update before certificates start expiring unexpectedly. Starting on October 14,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[241],"tags":[],"class_list":["post-284929","post","type-post","status-publish","format-standard","hentry","category-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Let&#039;s Encrypt cuts certificate lifetimes to 64 days starting February 2027 - UshopWell.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ushopwell.com\/ublog\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Let&#039;s Encrypt cuts certificate lifetimes to 64 days starting February 2027 - UshopWell.com\" \/>\n<meta property=\"og:description\" content=\"Let&#8217;s Encrypt is continuing a push toward tighter security by reducing free SSL\/TLS certificate lifetimes from 90 days to 64 days, starting February 10, 2027. For administrators already implementing modern ACME clients that support ARI (ACME Renewal Information), the change should be seamless. For those still relying on hardcoded renewal schedules or manual processes, February will be the deadline to update before certificates start expiring unexpectedly. Starting on October 14,...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ushopwell.com\/ublog\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\/\" \/>\n<meta property=\"og:site_name\" content=\"UshopWell.com\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-08T19:57:17+00:00\" \/>\n<meta name=\"author\" content=\"UShopWell\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"UShopWell\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\\\/\"},\"author\":{\"name\":\"UShopWell\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/person\\\/6fd1f9e0ff932e534c86c70d5acff0fc\"},\"headline\":\"Let&#8217;s Encrypt cuts certificate lifetimes to 64 days starting February 2027\",\"datePublished\":\"2026-10-08T19:57:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\\\/\"},\"wordCount\":155,\"publisher\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#organization\"},\"articleSection\":[\"Technology\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\\\/\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/lets-encrypt-cuts-certificate-lifetimes-to-64-days-starting-february-2027\\\/\",\"name\":\"Let's Encrypt cuts certificate lifetimes to 64 days starting February 2027 - 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