Is DeepSeek down?

DeepSeek availability and status

DeepSeek Chat and the DeepSeek API are separate access paths:

• DeepSeek Chat: chat.deepseek.com
• DeepSeek API: api.deepseek.com

A Chat outage does not automatically mean the API is unavailable, and an API error does not prove that the Chat website is down. Check the official DeepSeek status page for published incident information related to the affected component.

If no matching incident is listed, compare the failure across another browser, device, or network. A blank page, login loop, timeout, connection refusal, and API response error occur at different layers and should not be treated as the same problem. A status page can also take time to reflect a newly developing issue, so consistent failures from independent connections are useful evidence.

Troubleshooting DeepSeek access problems

Check for a service-wide incident first

Open the official DeepSeek status page and look for an incident affecting Chat, API access, or another relevant component. If the same failure appears on multiple devices or networks and a matching incident is listed, wait for service recovery and check again later instead of repeatedly retrying.

If the status page itself is unavailable, that does not prove that DeepSeek Chat or the API is down. Test the affected endpoint from another authorized connection and compare the result.

When DeepSeek Chat will not load

For chat.deepseek.com:

1. Refresh once, then test a private window or another browser.
2. If the private window works, clear site data for the DeepSeek Chat domain and review extensions that block scripts, cookies, or network requests.
3. If permitted by your network policy, test without a VPN, proxy, or filtering tool.
4. Try another connection, such as a mobile hotspot. If Chat works there, the original network, DNS resolver, firewall, or filtering policy is more likely than a DeepSeek-wide outage.
5. Record whether the symptom is a blank page, login loop, connection refusal, timeout, or server error. The exact symptom helps identify the affected layer.

When the page loads but login or conversations fail

A working page with failed sign-in, conversation loading, or another account action can indicate a session, cookie, account, or backend-component problem rather than a complete outage. Confirm that cookies are enabled, test a private window, and sign in again only when the service responds normally. Avoid repeatedly submitting credentials if errors continue or the account appears temporarily restricted.

When the DeepSeek API fails

For requests to api.deepseek.com, record the request time, exact HTTP status or connection error, and response body with API keys and other secrets removed. Check the following:

• The intended API domain and endpoint are being used.
• Authentication details are present, current, and associated with the expected account.
• Headers and request body match the integration's expected format.
• The failure affects one model, request, account, or application, or occurs consistently across requests.
• A simple request from another authorized environment produces the same result.

Authentication or request-format responses usually point to an integration or account correction. Timeouts, gateway errors, and repeated server errors across independent environments may indicate a network-path or service-side problem. Do not infer API availability from the Chat website alone.

When the problem appears local

If DeepSeek works for other users or on another network, inspect DNS, firewall, VPN, proxy, and filtering settings. Remove stale cached site data when browser testing indicates a cache or cookie problem, and change one setting at a time so the result remains understandable. Record connection-refused, timeout, DNS, and certificate errors exactly.

For an API integration, compare the timing of the failure with recent deployments, credential changes, request changes, rate-limit responses, or application-specific configuration changes. Do not include credentials in diagnostic logs or support requests.