Performance Monitoring

Distributed Tracing: A Powerful Mechanism for Application Debugging and Monitoring

Performance Monitoring
Distributed Tracing is the process of tracking the flow and timing of requests as they pass through a system, which helps us understand the performance of that ...
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Downtime happens, fix it faster - Uptime monitoring now in open beta

Performance Monitoring
That moment when everything’s running smoothly—users engaged, conversions flowing—until your site takes a break, and you find out from a tweet. We’ve all been t...
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Everyone needs to know how to trace

Performance Monitoring
It’s a bold claim for me to say that every developer can benefit from something 40% of them haven’t heard of, but hear me out. I was among the 40% who didn’t kn...
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Monitoring Twilio’s Flex Agent Desktop with Sentry

Performance Monitoring
Twilio Flex is a React-based web app that lets you run your contact center as a service, and years ago, while working at a previous company, I was tasked with s...
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Custom Performance Metrics: Tips from Etsy’s Performance Team

Performance Monitoring
Geoff Graham is a frontend engineer, designer, and teacher. He is also a writer and editor for Smashing Magazine and often consults with companies on web strate...
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Debugging slow pages caused by slow backends

Performance Monitoring
As a developer, what should your reaction be when someone says your website is slow to load? As long as you don’t say, “I just let my users deal with it”, you’r...
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Get Insights into backend infrastructure with Caches, Queues, Requests, & Queries

Performance Monitoring
To create exceptional products, developers need to understand the behavior of backed systems; however, we generally have the most control over the applications ...
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Debug Third-Party APIs with Requests

Performance Monitoring
The internet is basically just a bunch of websites calling each other. You make a call to some service, that service calls you back, and then that service goes ...
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AI Application Insights with Sentry LLM Monitoring

Performance Monitoring
The data you need to monitor AI-powered applications differs from other parts of your tech stack. Whether you need to debug an error, improve performance, or be...
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Introducing Insights: Tailored debugging workflows for your application

Performance Monitoring
You’re seeing an unusually high number of 429 status codes, but your monitoring solution can’t tell you much beyond that. Typically, that’s when you start searc...
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Don’t observe. Debug.

Performance Monitoring
The term “observability” is a strange one. We understand its value as a way to describe a sophisticated approach to monitoring complex distributed systems and m...
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Improving INP and FID with production profiling

Performance Monitoring
On March 12 Google began promoting INP (Interaction to Next Paint) into a Core Web Vital metric in an effort to push performance beyond page loads. This means y...
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INP, tracing, and mobile app starts: move faster and solve real user pain with Sentry Performance

Performance Monitoring
Today, we're making it even easier to find and solve user-impacting issues with three new Sentry Performance features: INP (Interaction to Next Paint) as a new ...
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Browser Profiling Learnings from Sentry.io

Performance Monitoring
Since enabling browser profiling on our Sentry.io dashboard a month ago, we have collected over 2M profiles and learned a lot about how our users experience our...
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Sentry Bundle Size: How We Reduced Replay SDK by 35%

Performance Monitoring
Bundle Size matters - this is something we SDK engineers at Sentry are acutely aware of. In an ideal world, you'd get all the functionality you want with no add...
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Find slow database queries with Query Insights

Performance Monitoring
There’s only so much you can control when it comes to your app’s performance. But you control what is arguably most important - the code. Sentry Performance get...
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Responsive Images: A cheap trick to improve page performance

Performance Monitoring
Being a frontend developer, I’m always looking for ways to improve page load and render time performance issues. One of my biggest annoyances is when I’m waitin...
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Choosing the Right Metric: A Guide to Percentiles and Averages

Performance Monitoring
Not sure which performance metric to use to measure your application performance? Don't worry – you're not alone. With a wide variety of options, the task of ch...
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