Blog
From the jentry blog
Practical writing on error tracking, performance monitoring, Sentry alternatives, and migrating without touching your code.
Alert fatigue: making error alerts you'll actually read
The failure mode of monitoring isn't missing data — it's a Slack channel nobody reads because it fires 200 times a day. Alert fatigue is a design problem, and it's fixable. This is the playbook we use: alert only on change, kill noise at the source, route to owners, and make silence trustworthy.
Read more →Monitoring Core Web Vitals in production (without a separate RUM tool)
Lighthouse scores are lab numbers; your users live in the field. If you already ship a Sentry-compatible browser SDK for error tracking, you also have a Real User Monitoring pipeline — the SDK attaches Core Web Vitals to its page-load transactions. Here's what the vitals mean, what thresholds to hold yourself to, and how to read them in production.
Read more →Error grouping and fingerprinting, explained
Grouping is the invisible feature of an error tracker: when it works you never think about it, and when it fails you drown in duplicate issues or — worse — miss a real bug hiding inside an unrelated one. Here's how Sentry-style fingerprinting actually decides that two events are 'the same', and how to take control when the defaults get it wrong.
Read more →The real cost of self-hosting Sentry
Self-hosted Sentry is genuinely free software, and for some teams it's the right call. But 'free' is a license price, not a total cost. Having run a production self-hosted Sentry ourselves, here is what the bill actually looks like — in hardware, in upgrades, and in the 3 a.m. pages you inherit.
Read more →jentry now speaks OpenTelemetry: OTLP traces, span trees, and APM without a vendor SDK
OpenTelemetry won. It is the lingua franca of instrumentation — every framework, every language, one wire format. So jentry now accepts OTLP/HTTP natively: point your existing OTel SDK or Collector at your project and you have APM, with no vendor SDK in your dependency tree.
Read more →What is error tracking? A practical guide for developers
Logs tell you what your application said. Error tracking tells you what actually broke, for whom, how often, and — with the right tool — why. This guide covers how error tracking works end to end, from the SDK in your app to the issue on your screen, and what separates a usable setup from a noisy one.
Read more →Switch Error Tracking Without Changing Code: How jentry Is Sentry SDK Compatible
You can switch error tracking without changing code because jentry is Sentry SDK compatible — it speaks the same envelope protocol over the same DSN. Migrating means editing one URL, not rewriting your instrumentation.
Read more →Sentry Too Expensive (or Too Heavy to Self-Host)? Here's Why — and What to Do
If Sentry feels too expensive on the hosted plan — or too heavy and resource-hungry to self-host — you're not wrong. Here's why Sentry is built that way, and how to right-size your error tracking honestly.
Read more →Best Sentry Alternatives in 2026: An Honest, Developer-First Roundup
Looking for the best Sentry alternatives in 2026? Here's an honest, developer-first roundup — why teams switch (cost, self-hosted complexity, scale overkill), the criteria that matter, and where each option fits, including the lean, SDK-compatible choice: jentry.
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