{"id":2645,"date":"2025-08-13T08:21:16","date_gmt":"2025-08-13T08:21:16","guid":{"rendered":"https:\/\/uptimerobot.com\/blog\/?p=2645"},"modified":"2026-01-19T15:05:51","modified_gmt":"2026-01-19T15:05:51","slug":"upcoming-security-update-tls","status":"publish","type":"post","link":"https:\/\/uptimerobot.com\/blog\/upcoming-security-update-tls\/","title":{"rendered":"Upcoming Security Update: TLS 1.2+ Required for API &#038; Cron Monitor Connections"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">At UptimeRobot, keeping your monitoring reliable and your data secure is a top priority. As part of our ongoing efforts to support modern security standards, we will be updating our minimum supported TLS version for certain connections.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Starting September 1st, 2025, UptimeRobot will no longer support TLS 1.0 and TLS 1.1 for API and cron monitor connections. All such connections will need to use TLS 1.2 or higher.<\/span><\/p>\n<h2><b>Why we\u2019re making this change:<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">TLS (Transport Layer Security) is the encryption protocol that protects the data exchanged between your systems and UptimeRobot. Older TLS versions (1.0 and 1.1) are now considered insecure by industry standards and have been deprecated by major browsers, APIs, and cloud providers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">By requiring TLS 1.2 or higher, we:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Align with modern security best practices<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reduce the risk of vulnerabilities and potential exploits<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ensure compatibility with the majority of up-to-date systems and libraries<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This is part of a broader set of improvements to keep UptimeRobot safe, stable, and reliable for all users.<\/span><\/p>\n<h2><b>Who this affects:<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">This change only impacts:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Users connecting to the UptimeRobot API using TLS 1.0 or 1.1<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Users running cron monitors that connect over TLS 1.0 or 1.1<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">If you are already using TLS 1.2 or higher, no action is needed.<\/span><\/p>\n<h2><b>How to prepare?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Before September 1st, check your client libraries, server configurations, or scripts to ensure they use TLS 1.2 or higher when connecting to UptimeRobot.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here are some quick checks and tips:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Update your HTTP\/HTTPS client libraries to the latest version<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Confirm your programming language runtime supports TLS 1.2+ (most modern versions do)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If you use a custom server or proxy, ensure its TLS settings allow TLS 1.2+ and disable older versions<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<h2><b>Need help?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">If you\u2019re not sure whether this affects you, our<\/span> <a href=\"https:\/\/uptimerobot.com\/contact\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">support team<\/span><\/a><span style=\"font-weight: 400;\"> can help you verify your current TLS version and guide you through any necessary updates.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We appreciate your understanding as we continue improving the security and reliability of UptimeRobot.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>At UptimeRobot, keeping your monitoring reliable and your data secure is a top priority. As part of our ongoing efforts to support modern security standards, we will be updating our minimum supported TLS version for certain connections. Starting September 1st, 2025, UptimeRobot will no longer support TLS 1.0 and TLS 1.1 for API and cron [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_is_featured_guide":false,"_post_views":25,"_reading_completions":62,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-2645","post","type-post","status-publish","format-standard","hentry","category-announcements"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Upcoming Security Update: TLS 1.2+ Required for API &amp; Cron Monitor Connections | UptimeRobot Blog<\/title>\n<meta name=\"description\" content=\"UptimeRobot will require TLS 1.2+ for API and cron monitor connections starting Sept 1, 2025 to improve security and reliability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uptimerobot.com\/blog\/upcoming-security-update-tls\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Upcoming Security Update: TLS 1.2+ Required for API &amp; 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