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Sentry for SvelteKit

We’re happy to announce that the Sentry SvelteKit SDK is now generally available and ready to help you monitor your SvelteKit application…

Web Fonts and the Dreaded Cumulative Layout Shift

How frustrating is it when you’ve just landed on a web page, you click on a certain element and an ad or something else pops up and you end up clicking that thing instead? That’s a layout shift, which is bad for the user’s experience and the later they happen, the worse it is.

Tame the performance of code you didn't write: A journey into stable diffusion

In our daily lives as developers, we have to deal with a lot of code that we did not write ourselves (or wrote ourselves but already forgot…

Sentry Profiling: Identify & Eliminate Performance Issues with Code-Level Insights

Use Sentry’s code profiling to identify the causes of performance errors. Sentry Profiling supports Python, PHP, Node, Android & iOS platforms.

Sleep More; Triage Faster with Sentry

As a developer, triage duty week was often the worst week of my month. Anytime a bug was reported, I’d search for the right environment…

Building better mobile experiences: tips from Riot Games and Nextdoor

Building high quality, performant mobile apps is hard. Developers need to keep up with rapidly changing technologies, high user expectations…

Introducing Search by User Click for Session Replay: Zero in on Interesting Replays, Faster

With the new search by user click feature for Session Replay, we’re giving you greater ability to surface relevant and interesting replays.

Freeze Bad Deployments in their Tracks with the GitHub Deployment Gate Integration

If you have a large codebase with multiple developers shipping quickly – errors need to be caught quickly as well. To help ensure your code…

Confidently Manage Multiple Projects with Sentry's New Spend Allocation and Spike Protection

Today we’re announcing our new Spend Allocation feature and updates to Spike Protection, giving you more control over how your projects…

Syntax × Sentry MMXXIII

Today is a special day at Sentry, as today we welcome Syntax to the family. We’ve long been fans of Scott and Wes, of what they’ve built…

Code coverage insights - now in your stack trace

I’m Jerrod, the Head of Codecov @ Sentry. I’d like to share updates from the first major release of our Codecov and Sentry integration and…

Code Mappings and Why They Matter

Code Mappings connect errors to the source code in a repository. And since errors can have paths that are different from the tree structure of the repository, Code Mappings determines the accurate path through a combination of a repository URL and a path transformation. Sentry uses Code Mappings to serve issue context on the issue details page.

The New APM: Actionable, Affordable, and Actually Built For Developers

You shouldn’t need a Ph.D. in your APM tool to understand the performance of your application. Sentry’s new approach to application monitoring is focused on being actionable, affordable, and *is actually* built for developers. Learn how we're redefining the future of APM.

Making Performance Monitoring More Actionable with Sentry

How your code performs isn’t a subjective debate. Well, at least not anymore — in the past few months, Sentry has started telling you…

Treat Performance Like A Feature

Implementing the right processes and tooling is key to bring your application’s performance from ‘adequate’ to ‘delightful’. Find out how to treat performance as a feature.

Get More Context about your Cloud Services with Sentry

A Sentaur who uses Sentry to build Sentry wanted to know where a specific service associated with an issue was being hosted in our cloud…

Sentry’s Frontend Tests: Migrating from Enzyme to React Testing Library

At Sentry, we practice continuous delivery,  which means that code can be released as soon as it’s merged into the main branch. This allows…

Introducing OpenTelemetry Support: Take Action on Your Observability Data

As an open source company that grew out of a side project in 2008 to an application and performance monitoring platform (APM) used by over…

Support for Next.js Middleware and Edge Routes

Third-party JavaScript libraries provide developers with the tools they need to build modern web experiences, and a bit of cheatcode at…

Introducing Session Replay from Sentry: Bridge the Gap between Code and UX

We’re making Session Replay generally available to all Sentry users. Remove the guesswork from troubleshooting by seeing video-like reproductions of what users experience leading up to and after an error or performance issue. Session Replay supports all web-based platforms.

Getting Started with Jetpack Compose

Recently, we wrote about the demonstrative move to declarative UI. With Jetpack Compose, Android is joining the declarative trends. Jetpack…

Profiling Beta for Python and Node.js

A couple months ago, we launched Profiling in alpha for users on Python and Node.js SDKs — today, we’re moving Profiling for Python and Node…

Profiling 101: Why profiling? (2/2)

This is part 2 of a 2-part series on profiling. If you’re not yet familiar with the what profiling is, check out the first part in our…

Profiling 101: What is profiling? (1/2)

The performance of your app matters. From ensuring a good user experience to retaining users, performance makes a difference in your app’s…

Local Variables for NodeJS in Sentry

Stack traces show us exactly where an exception occurred, but you can still be left wondering: What arguments or state caused the exception to occur? If you can reproduce the issue locally with a debugger attached you’ll have access to these local variables, but with Sentry you can identify the exception location *without* needing to reproduce the issue locally. By including local variables with stack traces, Sentry events become much closer to the full debugging experience.

Install Sentry with a Single Command

We’re creating a new way to install and set up Sentry. Starting with Next.js, you’ll be able to set up new Sentry accounts or create new…

Common Errors in Next.js and How to Resolve Them

Bugs are one of the most troubling aspects of software development; they appear out of nowhere and cause everything to stop working. Most of…

How to get started with Sentry's Unity SDK - Part 1

User experience and performance are two of the most important metrics of any game. You need to ensure that it runs as optimally as possible…

How to handle Android exceptions and avoid application crashes

Let’s start by stating the obvious: an exception is a problem that occurs during the runtime of a program which disrupts its conventional…

React Native Debugging and Error Tracking During App Development

A good developer knows how to debug code. In fact, most software engineers spend the majority of their time debugging existing code rather…

Dogfooding Chronicles: Weekly Report Emails

If you’re a Sentry user, you’ve probably seen those weekly emails we send out at the start of the week. They give a weekly recap to users of…

Cron Job Monitoring Beta - Because scheduled jobs fail too

Do your cron jobs (aka scheduled jobs) ever fail or not run as expected? Scheduled jobs are supposed to be predictable – as the name implies…

Understanding Performance Testing in Unity: A Real-World Example

Performance testing is an important part of any application. It helps developers to increase the application reliability while providing a…

Mobile: The Future is Declarative

Taking a look at where mobile app development is headed, and exploring the new declarative approach used by the new native frameworks SwiftUI and Jetpack Compose.

Prioritizing Platform Stability at One of FastCo.’s Most Innovative Companies of 2022

Ranked as one of New York Magazine’s best smart home training solutions 2022 and Men’s Health’s best connected cable machine 2022, Tonal literally sets the bar for smart home trainers.

Suspect Commits via Git Blame

Errors are part of building software. Even if you are one of the fabled 10X engineers, errors are still going to happen. When an error does…

How We Made JavaScript Stack Traces Awesome

Sentry helps every developer diagnose, fix, and optimize the performance of their code, and we need to deliver high quality stack traces in…

Bringing Codecov into the Sentry Family: Where Code Coverage Meets Application Monitoring

Today Codecov is joining the Sentry family. Codecov began as a code coverage reporting tool in 2014 and has since emerged as a market leader…

Measuring application performance in Swift using transactions

Learn how to measure the performance of individual functions in your Swift app by using Sentry's Custom Instrumentation feature.

Application Profiling for Python

Profiling is an important tool in every developer’s toolkit because it provides a granular view into the execution of your program from your…

Application Profiling for Node.js

Profiling is an important tool in every developer’s toolkit because it provides a granular view into the execution of your program from your…

How we run our Python tests in hundreds of environments really fast

Not in a reading mood? You also can watch the talk I gave at DjangoCon 2022. One of Sentries core company values is “for every developer…

Python 3.11 Release - Top 5 Things to Know

Python 3.11 was released on Oct. 24th, 2022. This latest version makes Python faster and even more user-friendly. If you’re not ready to…

How Sentry uncovered an N+1 issue in djangoproject.com

Sentry recently launched Performance Issues, a feature to help developers discover and fix common performance problems in their projects. We…

A New Era of Sentry

Today we are releasing Dynamic Sampling, available to all new customers, and opt-in for existing customers. This goes beyond a new feature…

We Just Gave $260,028 to Open Source Maintainers

Sentry is an open source company, and it’s important to us to financially support our non-commercial colleagues in the community as we…

Django Performance Improvements - Part 4: Caching in Django Applications

In the first three parts of this series around improving performance in your Django applications, we focused on database, code optimization…

Top 3 Issue Alert Tips to Stop Noisy Notifications

Sentry Alerts ping you on Slack, Microsoft Teams, or Pager Duty when something goes needs your attention. However, too many alerts can turn…

Building a Performant iOS Profiler

Here is a quick overview of profilers, and a deep dive into how we built the Sentry iOS profiler that has low enough overhead that it could run in production apps with minimal impact to user experience.

Spooky Season means Hacktoberfest

🎃 Spooky Season means Hacktoberfest is here! 👻 Hacktoberfest is less spooky and more exciting for us here at Sentry. If you’re new to…

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