Let's Encrypt is UP
and responding normally
Free SSL certificate authority
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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 been trending slower lately — 130ms on average now, versus 106ms earlier in the week.
- Went from down to upOct 6, 2026, 2:29 PM
- Went from up to downOct 6, 2026, 2:24 PM
- Went from down to upOct 6, 2026, 4:30 AM
- Went from up to downOct 6, 2026, 4:20 AM
About Let's Encrypt
- Website
- letsencrypt.org
- Category
- Security
- Monitored from
- EU (Helsinki, Frankfurt, Amsterdam)
- Check interval
- Every 5 minutes
- Monitoring since
- March 30, 2026 (193 days, 5,247 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 Let's Encrypt's own status page — that's a limitation of any third-party checker, not just this one.
Frequently Asked Questions
Is Let's Encrypt down right now?
Let's Encrypt is currently up and running. Our last check from EU servers showed a response time of 86ms with 99.94% uptime over the past 193 days.
What is Let's Encrypt's uptime?
Let's Encrypt has a 99.94% uptime measured over 193 days, based on 5,247 checks from Vartio's EU monitoring servers located in Helsinki, Frankfurt, and Amsterdam.
How do I check if Let's Encrypt is down?
Vartio monitors Let's Encrypt 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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