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By Samuel Mullen
Owning your server stack shouldn't be a source of anxiety. Unfortunately, it often is, especially if you only pay attention to the problems you can feel in your gut: Is the app running? Is it throwing exceptions? Does it seem fast enough? These are great intuitive measurements, but just as a doctor uses diagnostics to catch high blood pressure before it becomes a crisis, you need deeper visibility to detect memory leaks, CPU spikes, and disk consumption before they bring your project to a halt.
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By Muhammed Ali
When my Sidekiq job starts failing or slowing down, I often feel frustrated, especially if I don’t know how to fix it. If you’re using Sidekiq to run your background jobs, you know what I’m talking about. It’s a vital element of your stack, handling everything from data exports to password reset requests. It runs silently in the background, and most of the time, you’re not even giving it a second thought.
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By Ewa Szyszka
Documentation search is often the last thing devs think about, until someone posts publicly that they couldn't find a basic answer, or your support queue fills up with things that are genuinely in the docs. We decided to get ahead of that. This is the story of how we went from a minimal keyword-only search on our docs to a conversational Ask AI experience.
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By Dejan Lukić
In the wake of 2010s, PaaS felt like magic. You focused on the code, and the platform did the rest. You could ship a production app without knowing anything about networking or, heck, even what a load balancer is. Heroku in particular made deployment a lost thought, especially for early-stage companies. That era is somewhat over, not because platforms got worse overnight, but because the assumptions underneath them quietly stopped being true.
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By Muhammed Ali
Most of us run multiple virtual private servers (VPS) at a time. That’s why it’s important to keep an eye on the CPU usage and memory. However, since this step often slips our minds, there is room for automated monitoring. Open-source tools tend to be a default choice, and for a good reason. The problem is that they don't provide everything you need for monitoring in a single place. As a result, you may find yourself writing custom shell scripts for automation.
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By Connor James
Affordable hosting has always been a puzzle. Heroku made deploying Rails apps simple, but with Salesforce at the helm, active development has stalled. Many developers are left wondering what comes next, locked into a platform that is no longer moving forward. Chris, the founder of GoRails, felt that same frustration. That is why he built Hatchbox. Hatchbox handles your deployments, runs on servers you own, and keeps costs predictable. No dyno management, no add-on sprawl.
N+1 query problems are one of the most common, and quietly damaging, performance issues in production applications. One extra query per record feels harmless in development. At scale, it becomes the reason your response times degrade and your database buckles under load. Today, AppSignal adds N+1 detection to its OpenTelemetry support. When we identify the pattern in a trace, we collapse the repetitive spans directly in the timeline, making the problem immediately visible in the trace itself.
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By Serena Chou
When we launched AppSignal MCP in beta, OAuth was on the roadmap but not yet shipped. We were issuing static bearer tokens — enough to connect Claude Desktop, Cursor, and Windsurf, but not the one-click install path in the MCP Registry, and not GitHub Copilot's recommended setup. That's fixed.
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By Jaume Boguña
Slow endpoints are difficult to detect because they don’t fail. They simply get slower and slower. Average latency may look fine, but that can be misleading. That’s why we need to look at other values, like p90 and p95, which often reflect what’s really going on. For example, p90 represents the slowest 10% of requests, and p95 represents the slowest 5%. When these values increase, users start experiencing delays.
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By Dejan Lukić
Monitoring in Kubernetes can seem like opening an airplane's black box. Everything happens silently, behind the scenes, hidden away. This can be a lot of trouble, as you don’t really want to dig through a bunch of logs at 3 a.m. after a call letting you know that a certain feature is broken. You want something direct, concise, and helpful.
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By AppSignal
In this video, we give a whistle-stop tour of some of AppSignal's key features to help get you started.
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By AppSignal
He covers installation and setup, how to troubleshoot and fix performance issues, specifically showing a common use-case with N+1 queries. He then shows AppSignal's Sidekiq integration along with its magic dashboard, managing and reporting anomalies, custom instrumentation, and how to handle error reporting.. Here's the timeline.
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Made for teams that want to build high quality Ruby and Elixir applications, AppSignal offers amazing insights into errors and performance issues, plus host monitoring and an easy to use custom metrics platform.
AppSignal supports the Elixir language with an Elixir package. The package supports pure Elixir applications and frameworks including Phoenix, Plug & Erlang.
AppSignal supports the Ruby language with a Ruby gem. The gem supports many frameworks and gems including Capistrano, DataMapper, Delayed Job, Grape, MongoDB, Padrino, Rack, Rake, Resque, Ruby on Rails, Sequel, Shoryuken, Sidekiq, Sinatra & Webmachine.
AppSignal now supports Node.js! The package supports pure JavaScript applications and TypeScript applications, and can auto-instrument various frameworks and packages with optional plugins.
AppSignal also has amazing support for catching errors from Front-end JavaScript applications and sending them to AppSignal, including the React, Vue, Angular, Ember, Preact & Stimulus frameworks.
Packed with features:
- Alerts in your tools: AppSignal integrates with Slack, Flowdock, HipChat, OpsGenie and more.
- Control your notifications: AppSignal notifies you exactly when you want to. Get the first exceptions per deploy, all of them of never. Set thresholds for performance notifications.
- Amazing support: We don't do "first line" and "second line" support: you get to speak with a developer, immediately.
- Send to issue trackers: A single click creates an issue with all the necessary details in your issue tracker of choice.
- Manage teams and users: Add users to teams and give them access to specific or all, existing and/or new applications you monitor.
- Focus on design: Developer tools do not need to be complicated and ugly. Our interface is kept clean and easy to use.
Catch errors, track performance, monitor hosts, detect anomalies — all in one tool.