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Is Let's Encrypt Down Right Now? Live Status & Outage Tracker

Real-time uptime monitoring and outage reports

schedule Last checked 49 min ago · auto-refreshes every 5 minutes

Current Status

Operational

24h Uptime

100.00%

Reports (Last 1h)

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Last Peak Spike

stable

Uptime History (Past 24 Hours)

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24h ago 12h ago Now

Is Let's Encrypt Down? Live Let's Encrypt Server Status & ACME API Uptime Tracker

person By: Monitoring team

update Last updated: Jun 18, 2026, 10:27 AM UTC

Let's Encrypt is a non-profit certificate authority providing free SSL/TLS certificates to hundreds of millions of websites globally. When its ACME API or validation servers experience downtime, automated renewals fail and new certificates cannot be issued, leading to expired security warnings for webmasters. If you are struggling to renew your SSL certificates, check if Let's Encrypt down right now using our live monitoring tool.

Currently, based on our real-time global monitoring network, the status of Let's Encrypt is operational. There are currently no widespread network anomalies detected. If you are one of the few users currently struggling with an alleged Let's Encrypt outage, it is almost certainly an isolated incident affecting only your specific connection route or an outdated application client.

The Domino Effect: What Happens During a Let's Encrypt Outage Today in 2026?

A Let's Encrypt outage today in 2026 can trigger immediate security warnings across the web as automated systems like Certbot fail to renew expiring certificates. Developers will notice Let's Encrypt problems today such as 504 Gateway Timeouts on ACME directory URLs or DNS-01/HTTP-01 validation timeouts. Consequently, visitors to affected sites will see intimidating browser warnings, halting web traffic and breaking secure API endpoints.

When the timeline chart illuminates red or yellow, it means a sizable portion of the player or user base is getting hit by these exact bugs. isitdownrightnow.app actively sifts through the noise to confirm when a real Let's Encrypt outage is happening rather than a localized glitch.

Recent Let's Encrypt Network Status Logs and Reported User Problems Today

Transparency into historical performance is key. Over the past 24 hours alone, our advanced tracking systems have recorded a total of 0 unique problem reports from users experiencing connectivity or functional issues with Let's Encrypt. Currently, the service has maintained a 100.00% uptime rating over this recent 24-hour tracking window.

Over the past day, we have not registered a single severe outage spike. The flatlined green bars on the chart confirm a stable, reliable 24-hour window with zero widespread disruptions.

How to Troubleshoot Let's Encrypt Not Working and SSL Renewal Failures

Still can't connect even though the servers are green? The Let's Encrypt lag is likely on your end. Run through this quick checklist to get back online:

Check Certbot Log Files & ACME API Endpoints: When encountering Let's Encrypt problems today, inspect your local client logs (like /var/log/letsencrypt/letsencrypt.log). Look for specific HTTP error codes; a 429 error indicates you have hit Let's Encrypt's rate limits, whereas a 503 or connection timeout suggests the Let's Encrypt network status is degraded.
Adjust Firewall Rules for Validation Authority IPs: Let's Encrypt uses multiple perspective validation, meaning their servers check your ACME challenge from various IP addresses worldwide. Ensure your firewall (e.g., UFW, AWS Security Groups, Cloudflare) is not blocking inbound HTTP traffic on port 80 or HTTPS on port 443 from arbitrary IPs, as this causes renewal attempts to fail even when Let's Encrypt is working.
Diagnose DNSSEC and DNS Propagation Issues: The Let's Encrypt validation server strictly validates DNS records before issuing certificates. If your DNS host is experiencing issues, or if DNSSEC is misconfigured for your domain, Let's Encrypt's servers will fail to verify your ownership, resulting in a failed challenge even if the Let's Encrypt server status is fully operational.

How to Fix & Check if Let's Encrypt Is Down on Windows, Mac, Android & iOS

desktop_windows

Let's Encrypt on Windows

Fix: Fix Let's Encrypt certificate errors on Windows by running Windows Update to update your root certificates, or manually import the ISRG Root X1 certificate into the Windows Certificate Manager.

Check: To check if Let's Encrypt is down on Windows, visit their official status page or test if you get SSL connection errors on websites that use Let's Encrypt certificates.

Command Prompt (CMD)

ping letsencrypt.org Test whether Let's Encrypt's servers reply

nslookup letsencrypt.org Check that Let's Encrypt's DNS resolves

tracert letsencrypt.org Trace where the connection drops

ipconfig /flushdns Clear the DNS cache, then reload

laptop_mac

Let's Encrypt on Mac

Fix: Resolve Let's Encrypt trust issues on macOS by updating your operating system or manually importing and setting the ISRG Root X1 certificate to 'Always Trust' in Keychain Access.

Check: Verify if Let's Encrypt is down on a Mac by checking the official Let's Encrypt status page or inspecting certificate details in Safari or Keychain Access.

Terminal

ping -c 4 letsencrypt.org Test whether Let's Encrypt's servers reply

nslookup letsencrypt.org Check that Let's Encrypt's DNS resolves

traceroute letsencrypt.org Trace where the connection drops

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder Flush the macOS DNS cache, then reload

android

Let's Encrypt on Android

Fix: Fix Let's Encrypt certificate issues on Android by installing the latest system updates, or use the Firefox browser which uses its own updated root certificate store.

Check: Determine if Let's Encrypt is down on Android by checking if multiple secure websites fail to load with SSL warnings, or by visiting the Let's Encrypt status site.

phone_iphone

Let's Encrypt on iPhone / iPad

Fix: Fix Let's Encrypt connection errors on iOS by updating your iPhone or iPad to the latest iOS version to refresh the system's trusted root certificates.

Check: Check if Let's Encrypt is down on iOS by checking if Safari displays 'Certificate Not Trusted' warnings on Let's Encrypt-secured websites.

How Our Let's Encrypt Down Detector Keeps Tabs on the Certificate Authority

Unlike internal corporate status pages, which are notoriously slow to update and often hide the true extent of ongoing failures, isitdownrightnow.app relies directly on the community. By crowdsourcing live problem reports submitted by real users worldwide, we can detect a massive Let's Encrypt crash literally within seconds of it beginning.

By comparing the live influx of complaints to a standard 7-day algorithmic baseline, our anomaly detection engine spots real outages instantly. When the reporting volume shatters the threshold, the alert goes out. This ensures that when you look for a Let's Encrypt down detector, you are always getting mathematically proven, community-verified outage maps.

Frequently Asked Questions

Is Let's Encrypt down right now?

Our live Let's Encrypt down detector monitors the responsiveness of the Let's Encrypt ACME v2 directory endpoint (api.letsencrypt.org) and validation authority servers. By combining automated ping checks with real-time crowd-sourced reports from developers experiencing Let's Encrypt problems today, we can determine if the service is experiencing a widespread outage or if the issue is isolated to your local hosting environment.

What is the Let's Encrypt server status?

The Let's Encrypt server status is currently determined by the availability of its production and staging ACME APIs, its OCSP responder (ocsp.int-x3.letsencrypt.org), and its certificate transparency logs. If you are seeing connection timeouts or HTTP 500 errors when running your ACME client in 2026, it indicates a deterioration in the Let's Encrypt network status or scheduled maintenance on their backend infrastructure.

Why is Let's Encrypt not working today?

If Let's Encrypt is not working today, it is typically due to one of three issues: a global outage of the Let's Encrypt infrastructure, local rate-limiting on your server's IP address (such as hitting the duplicate certificate limit), or firewall rules blocking Let's Encrypt's validation servers from accessing your domain's verification challenge. Check our live reports to see if a Let's Encrypt outage today in 2026 is affecting other sysadmins or if it is a localized configuration error.

How do I check if Let's Encrypt is down?

You can verify if Let's Encrypt is working by querying their ACME directory endpoint using a curl request to see if it returns a 200 OK status. Additionally, you should cross-reference your findings with our Let's Encrypt down detector, which aggregates global connectivity data from servers trying to reach the Let's Encrypt API endpoints in real-time.

Outage Heat Map

LIVE

Operational Degraded Outage

Tracking Let's Encrypt outage reports worldwide

Live User Reports

Real-time

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System Monitoring Active

Real-time

Monitoring is currently tracking 0 ongoing reports, which is well within normal operational baselines for Let's Encrypt.

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