Operations | Monitoring | ITSM | DevOps | Cloud

On February 17, 2026, YouTube went down for users worldwide. Starting around 8:00 PM ET, the platform's homepage, Shorts feed, sign-in system, smart TV apps, YouTube Music, and YouTube Kids all stopped working. Over 21,000 reports were logged on IsDown alone. The error message was the same everywhere: "Something went wrong." For consumer users, it was an inconvenience. For businesses that depend on YouTube — content teams, advertisers, media companies, live streamers — it was a blind spot.

How database indexes work, when to use B-tree vs hash indexes, clustered vs non-clustered indexes, and how to tell if your indexes are actually helping.

AI coding agents are excellent at writing code. Ask Claude Code, Codex, or Cursor to add a feature, and it just works. At Checkly, we were ready for the new agentic world from the start! Monitoring as Code means your entire monitoring setup lives in your repository. API Checks, Browser Checks, alert channels, status pages; everything is defined in code, managed with the Checkly CLI, and version-controlled like any other part of your stack.

SREs and application developers rely on telemetry data to understand and improve their systems. As organizations scale and evolve, those systems generate an ever-growing volume of metrics, logs, and traces. But more data alone does not make it easier to improve performance or reliability: Identifying meaningful optimizations still requires careful investigation and analysis.

Last time, we explored the concept of variable scopes in Icinga 2, which help you manage and organize your DSL configurations effectively. As promised, today we’ll dive into another, how shall I say, advanced topic: Namespaces in Icinga 2.

In the first two posts of this series, we explored how alert noise emerges from design decisions, and why notification lists fail to create accountability when responsibility is unclear. There’s a deeper issue underneath both of those problems. Many alerting systems are designed without being clear about the outcome they’re meant to produce. When teams don’t explicitly decide what they want to happen as a result of a signal, they default to the loudest option available.

Starting from today, Healthchecks.io users on all plans (Hobbyist, Supporter, Business, Business Plus) can invite an unlimited number of users into their projects. Previously, the limits were: 3 team members for Hobbyist and Supporter, 10 team members for Business, and unlimited team members for Business Plus. From now on, it is unlimited for all.