Is Claude Down? How to Check Status & Fix Errors

How to Determine If Claude Is Down

If you attempt to load claude.ai or access the Console and encounter an infinite loading wheel, a blank screen, or connection timeout errors, you need to establish whether the problem lies with Anthropic's cloud infrastructure or your own local system.

An outage can affect different parts of Anthropic's product suite independently. Sometimes the web interface is offline while the API remains functional, or vice versa. Isolating the scope of the connectivity issue is the first step toward finding a temporary bypass.

---

How to Check Status and Fix Local Connection Errors

Follow these diagnostics to verify Claude's status and resolve any local configurations preventing you from establishing a clean connection.

1. Check Official Status and Outage Trackers Before troubleshooting your device, confirm whether there is an active global outage. * **Official Status Page:** Go to `status.anthropic.com`. This page monitors the availability of the Claude Web App, the Developer Console, the API, and underlying model endpoints. If any system is labeled "Major Outage" or "Partial Outage," the service is down for everyone. * **Third-Party Trackers:** Check platforms like Downdetector (search for "Anthropic" or "Claude"). These sites aggregate real-time user reports and can often detect regional outages 15 to 30 minutes before official status pages are updated. * **Community Outlets:** Visit the official Anthropic Discord server or search the `#ClaudeDown` hashtag on social media to see if other users are reporting identical loading failures.

2. Perform a Hard Reload to Bypass CDN Caching If Anthropic recently deployed a hotfix to resolve an outage, your browser might still be trying to load outdated or cached code assets from Cloudflare or another Content Delivery Network (CDN). * **Windows:** Press `Ctrl + F5` or hold `Ctrl` and click the **Reload** button in your browser. * **Mac (Chrome/Firefox):** Press `Cmd + Shift + R`. * **Mac (Safari):** Press `Option + Cmd + E` to empty the cache, then press `Cmd + R` to reload the page.

3. Clear Specific Site Cookies and Storage Corrupted authentication tokens in your local cookies can trick Claude's servers into rejecting your connection, throwing security errors that look like service outages. * In your browser's address bar, click the settings/lock icon to the left of `claude.ai`. * Select **Cookies and site data** (or **Site settings**). * Click **Manage on-device site data** and delete all stored entries for `claude.ai` and `anthropic.com`. * Restart your browser, navigate back to the site, and attempt to sign in again.

4. Test on an Alternative Network and Device Local DNS cache poisoning or restrictive corporate firewall rules can block traffic to Anthropic's domains, mimicking a complete service outage. * Disconnect your computer from your current Wi-Fi network and connect to a mobile hotspot. * Alternatively, open the Claude mobile app on your smartphone using cellular data (with Wi-Fi turned off entirely). * If Claude loads correctly over cellular data, your router, ISP, or corporate network firewall is actively blocking or misrouting traffic to Anthropic. You will need to flush your DNS cache (run `ipconfig /flushdns` in Windows Command Prompt, or `sudo dscacheutil -flushcache` on macOS Terminal).

5. Disable Web Protections and Ad Blockers Some privacy-focused extensions and local antivirus suites block WebSocket connections or specific API endpoints required for Claude's user interface to communicate with backend servers. * Temporarily disable ad-blocking extensions (like uBlock Origin, AdBlock, or Privacy Badger). * Turn off any active "Web Protection" features in third-party antivirus suites (such as Avast, Bitdefender, or Malwarebytes) for 5 minutes to test the connection.

---

When to Escalate

If both status.anthropic.com and public outage trackers indicate that Claude's servers are completely operational, but you still cannot load the login page or interface after changing networks and clearing your cache, you should reach out to support.

To escalate: 1. If you can access the Console at console.anthropic.com, submit a support ticket via the built-in messenger. 2. If you are entirely locked out of all Anthropic domains, send an email to support@anthropic.com from your registered account email. 3. In your message, specify the exact error message displayed (e.g., "ERR_CONNECTION_TIMED_OUT"), your geographic location, your Internet Service Provider, and the troubleshooting steps you have already completed.