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CodeGecko vs Sentry
Sentry is built around errors and tracing. CodeGecko is built around one question: did this release make your pages faster or slower for real visitors?
The short version
- Sentry is excellent at catching errors and tracing slow requests through your app.
- Its frontend view shows Web Vitals as a performance score with improvement ideas.
- Its release health is about crashes and errors.
- CodeGecko gives each release a speed verdict per page and device. Many teams would use both.
Side by side
| CodeGecko | Sentry | |
|---|---|---|
| Tells you if a release got slower | Yes, a verdict for every release | Shows a performance score over time; release health tracks errors and crashes |
| Per page and device | Yes, every page on phones and computers | Per page, with filters |
| Waits for enough visits | Yes, at least 30 visits on each side | Not a release-by-release check |
| Error tracking | JavaScript error rate per release, with top errors | Yes, full error tracking with stack traces |
| Backend tracing | No | Yes |
| Setup | A script tag and one CI step | An SDK in your app, plus release tagging |
Based on Sentry’s public docs, checked October 2026: Sentry docs: Web Vitals · Sentry docs: Performance monitoring. Spot something out of date? Tell us.
Which one fits you?
Pick CodeGecko if
- You want to know whether each deploy changed page speed.
- You want a verdict you can read in a minute, without setting up an SDK.
Pick Sentry if
- You need full error tracking with stack traces and alerts.
- You want to trace slow requests through your backend.
They don’t overlap much. Sentry tells you what broke; CodeGecko tells you what got slower. Running both is common.
See it on your own releases.
Explore the demo to see a real release verdict, or ask us anything about switching.
