UptimeObserver Blog

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 […]

We’re thrilled to announce the launch of Webhook Alerts—a powerful new way to automate your monitoring workflows and respond to incidents faster with UptimeObserver. What Are Webhook Alerts? Webhook alerts let you automatically send real-time HTTP requests to any endpoint when specific monitoring events occur—like uptime changes, latency spikes, or service outages. With webhooks, you […]

Let’s Encrypt announced in January that starting June 4, 2025, they will no longer send certificate expiration notification emails. This marks a shift in how site owners and admins must ensure their HTTPS certificates are up to date — no more last-minute email alerts to save you from an expired cert and a flood of […]

Email spoofing is one of the simplest ways for an attacker to make a fraudulent message appear to come from a legitimate business. An attacker does not necessarily need access to your mailbox. They can forge the sender information in an email and make a message appear to come from billing@yourcompany.com, your CEO, or another […]