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Checked every 5 minutes · How we measure this
As of 19:00 EST on 12 Nov 2026, Claude reports degraded or failing components on its own status page. Our probe still reached claude.ai in 261 ms, with 100.00% availability over the last 24 hours.
Checked every 5 minutes · last checked 9 minutes ago
The line is response time measured from our probe to claude.ai, which rises when the service slows down. Shaded red marks intervals where checks actually failed. It excludes your own connection and browser rendering.
Reported by Claude on its own status page. Verify on their status page.
https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws
https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry
https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed
0 problem reports
Claude degraded performance
Detected by DownBits probe
Elevated errors affecting the Microsoft 365 connector
This issue is caused by a Microsoft 365 service incident, and mail, calendar and search tools in the Microsoft 365 connector are still failing for most requests. Claude for Outlook remains affected. You can follow Microsoft's progress at https://status.cloud.microsoft. We will update this post when service is restored.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 8 Nov 2026, 14:05 – 14:35 IST, lasting ongoing. Detected across 6 consecutive automated checks of claude.ai.
Detected by DownBits probe
Degraded performance for Claude Fable 5.1
A fix has been deployed for Claude Fable 5.1 and we are monitoring for recovery.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 28 Oct 2026, 21:55 – 01:45 IST, lasting ongoing. Detected across 46 consecutive automated checks of claude.ai.
Detected by DownBits probe
Elevated errors affecting the Google Calendar connector
We are seeing recovery for errors affecting the Google Calendar connector, and error rates have returned to normal levels. We are continuing to monitor with our upstream provider.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 28 Oct 2026, 09:35 – 11:25 IST, lasting ongoing. Detected across 22 consecutive automated checks of claude.ai.
Detected by DownBits probe
Elevated errors affecting the Gmail connector
We are investigating elevated errors when searching and reading email with the Gmail connector. This issue does not affect other connectors.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 27 Oct 2026, 20:45 – 21:30 IST, lasting ongoing. Detected across 9 consecutive automated checks of claude.ai.
Detected by DownBits probe
Elevated errors for Claude Sonnet 5.5
We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 27 Oct 2026, 14:50 – 15:15 IST, lasting ongoing. Detected across 5 consecutive automated checks of claude.ai.
Detected by DownBits probe
Elevated errors for Claude Sonnet 5.5
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
Confirmed on the vendor status page
Claude degraded performance
DownBits detected degraded performance on Claude between 25 Oct 2026, 13:55 – 14:10 IST, lasting ongoing. Detected across 3 consecutive automated checks of claude.ai.
Detected by DownBits probe
Claude degraded performance
DownBits detected degraded performance on Claude between 25 Oct 2026, 11:50 – 12:15 IST, lasting ongoing. Detected across 5 consecutive automated checks of claude.ai.
Detected by DownBits probe
Elevated errors for Claude Fable 5.1
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
Confirmed on the vendor status page
Claude is reporting degraded or failing components on its own status page. Our probe is still reaching claude.ai normally — 24-hour availability from our checks is 100.00% — so the front door is up while something behind it is not. The component list on this page shows which parts Claude says are affected. Last checked 9 minutes ago.
Measured from our automated checks, Claude has been available 100.00% over 24 hours, 100.00% over 7 days, 100.00% over 30 days. We recorded 26 incidents in the last 30 days.
Claude has averaged 182 ms across our successful checks in the past 24 hours, which is fast — comfortably within what a healthy service should return. Response time is measured from our probe to claude.ai and does not include rendering time in your browser.
The most recent incident DownBits recorded for Claude began on 8 November 2026 at 14:05 IST and lasted 30 min. It was logged as degraded performance. Detected by DownBits probe.
Our probe is also failing to reach claude.ai normally, so this is not just you. Use the report button on this page to add your own signal — when several people report the same problem within a short window, it appears on the chart above.
A working marketing site does not mean a working API. Call the API host directly — curl -s -o /dev/null -w "%{http_code}" https://claude.ai/ — and check the vendor status page linked above for component-level detail, since one component can fail while the rest stay green.
HTTP 429 and 529 mean you are being throttled, not that the service is down. Inspect the response headers for a retry-after value and back off exponentially rather than retrying immediately.
A 401 or 403 is an authentication problem on your side. Rotated keys, an expired billing method, or a revoked token all present as sudden total failure.
Open any other site. If nothing loads, the issue is your network rather than Claude. On Windows run ping claude.ai and nslookup claude.ai in Command Prompt; on macOS or Linux use Terminal. A DNS failure and a server failure look identical in a browser but are very different problems.
Load claude.ai in a private or incognito window. If it works there, clear cookies and site data for claude.ai in your normal browser rather than clearing everything.
Switch from Wi-Fi to mobile data, or vice versa. Regional ISP routing problems are common and often affect one carrier while others are unaffected.
We link the vendor status page so you can check our reading against theirs.
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