{"id":561,"date":"2019-02-27T20:34:04","date_gmt":"2019-02-27T20:34:04","guid":{"rendered":"https:\/\/uptimerobot.com\/blog\/?p=561"},"modified":"2025-11-13T15:06:19","modified_gmt":"2025-11-13T15:06:19","slug":"a-new-ip-block","status":"publish","type":"post","link":"https:\/\/uptimerobot.com\/blog\/a-new-ip-block\/","title":{"rendered":"A New IP Block"},"content":{"rendered":"<p>All the requests sent from <strong>Uptime Robot<\/strong> are using pre-defined IPs to make sure\u00a0that\u00a0we all\u00a0know the source of the requests.<\/p>\n<p>A new IP block is being added to the system:<\/p>\n<ul>\n<li><strong>216.245.221.80\/28<\/strong><\/li>\n<\/ul>\n<p>And, if exists, please make sure it is whitelisted in your firewalls.<\/p>\n<p>Also, the <a href=\"https:\/\/uptimerobot.com\/locations\"><strong>full list of the IPs used\u00a0can be found here<\/strong><\/a>.<\/p>\n<p><strong>P.S.&gt;<\/strong> If you had never needed to whitelist or take action regarding to\u00a0 Uptime Robot&#8217;s IPs in the past, then you probably don&#8217;t need to take any action and can ignore this info.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>All the requests sent from Uptime Robot are using pre-defined IPs to make sure\u00a0that\u00a0we all\u00a0know the source of the requests. A new IP block is being added to the system: 216.245.221.80\/28 And, if exists, please make sure it is whitelisted in your firewalls. Also, the full list of the IPs used\u00a0can be found here. P.S.&gt; [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_is_featured_guide":false,"_post_views":13,"_reading_completions":23,"footnotes":""},"categories":[2],"tags":[17],"class_list":["post-561","post","type-post","status-publish","format-standard","hentry","category-announcements","tag-ip"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A New IP Block | UptimeRobot Blog<\/title>\n<meta name=\"description\" content=\"UptimeRobot adds a new IP block (216.245.221.80\/28) to its list of monitoring addresses \u2014 ensure you whitelist it to avoid blocked alerts.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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