Bun is UP
and responding normally
Fast JavaScript runtime, bundler, and package manager.
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Save it as a Vartio monitor and get alerts when our EU checks detect downtime or degraded response.
Response Time History
Recent Activity (7 days)
Response time has held steady, averaging 153ms.
No status changes in the last 7 days — Bun has been consistently up.
About Bun
- Website
- bun.sh
- Category
- Developer Tools
- Monitored from
- EU (Helsinki, Frankfurt, Amsterdam)
- Check interval
- Every 5 minutes
- Monitoring since
- March 30, 2026 (148 days, 5,952 checks)
How we measure this: checks run from EU servers only, so a result here reflects what the EU sees, not a global view. A regional outage, CDN edge-cache issue, or bot/WAF protection that treats our monitoring probe differently than a real visitor can all cause this to disagree with Bun's own status page — that's a limitation of any third-party checker, not just this one.
Frequently Asked Questions
Is Bun down right now?
Bun is currently up and running. Our last check from EU servers showed a response time of 151ms with 99.97% uptime over the past 148 days.
What is Bun's uptime?
Bun has a 99.97% uptime measured over 148 days, based on 5,952 checks from Vartio's EU monitoring servers located in Helsinki, Frankfurt, and Amsterdam.
How do I check if Bun is down?
Vartio monitors Bun every 5 minutes from multiple EU servers and runs a live check when you visit this page. This page shows the current status, response time, and uptime history. You can also monitor your own services for free.
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