Is Stack Exchange down right now?

Stack Exchange is currently Service outage. 1 service independently monitored by Guardian. Measured uptime: 4.76%. Independently probed by Guardian.

Guardian

Stack Exchange.

1 service independently monitored by Guardian

Atom feed of incidents & status changes

GUARDIAN-MEASURED

● DOWNService outage

Our keyless probes, every 5 minutes. Independent of the vendor.

VENDOR-REPORTED

□ NO DATA

Their status feed, shown for reference when available.

Two lanes. Never merged into one number.

01⁄GUARDIAN-MEASURED · 90-DAY WINDOW · 30-DAY NARROW WINDOW

Measured by Guardian probes only. Mobile rows show a separately computed trailing 30-day percentage beside the 30 visible cells.

APIs

API● DOWN

90 days ago4.76 % uptime · grade F · 90 d · 335 changes · last 2026-10-122.84 % uptime · grade F · 30 d · 335 changes · last 2026-10-12 · 30 dtoday

MCP servers

□ NO DATA · no MCP servers monitored

02⁄VENDOR-REPORTED · WINDOW BEGINS WITH FIRST FEED OBSERVATION

Vendor-reported components

No vendor-reported components for this provider

OperationalDegraded PerformancePartial OutageMajor OutageMaintenanceNo dataGrade: A ≥99.9% · B ≥99% · C ≥95% · D ≥90% · F <90%

03⁄PAST INCIDENTS

Oct 12, 2026

18:21 UTCGUARDIAN-MEASUREDGuardian-measuredHTTP 400API · ongoing since Oct 12, 2026
11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)

Oct 11, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Oct 10, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Oct 9, 2026

11:20 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:10 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 45m

Oct 8, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 25m

Oct 7, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Oct 6, 2026

11:55 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:45 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 10m

Oct 5, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Oct 4, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Oct 3, 2026

11:55 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:45 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 10m

Oct 2, 2026

11:30 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:20 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 35m

Oct 1, 2026

12:00 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:50 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 5m

Sep 30, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 29, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 25m

Sep 28, 2026

11:35 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:25 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 30m

Sep 27, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 26, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 15m

Sep 25, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 24, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 15m

Sep 23, 2026

11:35 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:25 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 25m

Sep 22, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 21, 2026

11:35 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:25 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 25m

Sep 20, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 15m

Sep 19, 2026

11:55 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:45 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 5m

Sep 18, 2026

11:15 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:05 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 45m

Sep 17, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 15m

Sep 16, 2026

11:45 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:35 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 15m

Sep 15, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 14, 2026

11:40 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:30 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 20m

Sep 13, 2026

11:50 UTCAvailability incidentAPI · Endpoint has failed 3 consecutive polls (latest: HTTP 400)
11:40 UTCGUARDIAN-MEASUREDGuardian-measured✓ RESOLVEDResolvedAPI: HTTP 400 · resolved after 23h 10m

Showing the 60 most recent of the last 90 days’ events.