UptimeObserver Blog

UptimeObserver is now listed as a verified bot in the Cloudflare Radar Bot Directory, under Monitoring & Operations. We’ve implemented Web Bot Auth to cryptographically sign our HTTP monitoring requests, allowing Cloudflare to verify that they come from UptimeObserver. Why this matters Website security tools can sometimes block or challenge legitimate monitoring requests. When that happens, a check […]

Let’s Encrypt will shorten its default SSL/TLS certificate lifetime from 90 days to 64 days on February 10, 2027. Website owners should review their renewal automation, certificate deployment, and expiration alerts before the change takes effect. In its October 7 announcement, Let’s Encrypt confirmed that certificates issued or renewed from that date will use the shorter lifetime […]

Note: Although the modern protocol is Transport Layer Security (TLS), the industry still commonly refers to TLS certificates as “SSL certificates.” TLS errors can be frustrating because browsers often reduce a complex certificate or handshake failure to a short message such as “Your connection is not private” or “SSL protocol error.” The important thing to understand is that […]

I built UptimeObserver because I was tired of finding out my projects were down via angry DMs on Twitter. The worst part wasn’t fixing the server; it was trying to write a professional, calm status update while privately panicking. Downtime is inevitable. Whether it’s a botched deployment, a server overload, or an expired SSL certificate, […]

Terminology note: Although these are commonly called SSL certificates, modern public certificates are used with TLS. In this guide, we use “SSL certificate” where it matches common search terminology and “TLS certificate” when discussing the underlying technology. I remember the days when securing a website meant manually generating a Certificate Signing Request (CSR) on a server. […]

If you’ve recently issued a new SSL/TLS certificate and noticed the expiration date is much sooner than expected, you aren’t alone. As of March 15, 2026, the industry has officially moved away from the 398-day (one-year) standard. We have entered a phased “step-down” period mandated by the CA/Browser Forum (Ballot SC-081). This represents one of […]

Website downtime doesn’t just inconvenience users. it costs businesses dearly. A widely-cited Gartner study found, in 2014, that downtime costs an average of $5,600 per minute, but more recent research shows costs have risen significantly. According to a 2024 EMA Research study prepared for BigPanda, the average cost has climbed to $14,056 per minute, with […]

Introduction For decades, WHOIS was the only way to look up domain ownership. However, as of January 28, 2025, ICANN officially mandated the transition to RDAP (Registration Data Access Protocol) for all generic Top-Level Domains (gTLDs). If you are still relying on legacy WHOIS tools, you are using a protocol that is officially considered “legacy.” Here is everything […]

Did you know that a one-second delay in page load time can reduce conversions by up to 7%—and that performance varies dramatically by region? Your website serves users from every corner of the globe. Yet many businesses still rely on single-location monitoring, leaving themselves blind to regional performance issues that could be costing them customers […]