Uptime history

Each week (Mon–Sun, JST) is summarized once it completes; the granular daily data is then pruned. Live status is on the status page.

Weekly summaries

2026-09-14 – 2026-09-20

5 incidents5m down99.970%

Review

18 incidents3h 13m down98.531%

Platform

0 incidents100%

2026-09-07 – 2026-09-13

13 incidents16m down99.921%

Review

9 incidents1h 24m down99.335%

Platform

0 incidents100%

2026-08-31 – 2026-09-06

36 incidents43m down99.682%

Review

8 incidents57m down99.583%

Platform

0 incidents100%

2026-08-24 – 2026-08-30

4 incidents7m down99.960%

Review

21 incidents3h 56m down98.194%

Platform

0 incidents100%

2026-08-17 – 2026-08-23

8 incidents10m down99.921%

Review

28 incidents4h 26m down98.094%

Platform

0 incidents100%

2026-08-10 – 2026-08-16

4 incidents4m down99.970%

Review

128 incidents3d 19h down66.831%

Platform

0 incidents100%

2026-08-03 – 2026-08-09

3 incidents3m down99.980%

Review

143 incidents1d 3h down83.753%

Platform

0 incidents100%

2026-07-27 – 2026-08-02

6 incidents8m down99.941%

Review

150 incidents1d 5h down89.708%

Platform

0 incidents100%

Past incidents

Resolved auto-detected2026-09-23 01:19 JST

Review Frontend (Development) is unavailable

Automatically detected by monitoring. Signal: request failed: fetch failed · 0 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-23 01:18 JST

Review Frontend (Staging) is unavailable

Automatically detected by monitoring. Signal: request failed: fetch failed · 0 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-22 20:58 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 75 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-22 05:29 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 74 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-21 03:22 JST

Platform (Development) is degraded

Automatically detected by monitoring. Signal: 6 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Platform

Resolved auto-detected2026-09-21 00:25 JST

Platform (Development) is unavailable

Automatically detected by monitoring. Signal: 51 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Platform

Resolved auto-detected2026-09-20 19:07 JST

Platform (Development) is degraded

Automatically detected by monitoring. Signal: 8 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Platform

Resolved auto-detected2026-09-20 15:49 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 74 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-20 15:42 JST

Review Backend (Staging) is unavailable

Automatically detected by monitoring. Signal: 71 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-20 13:34 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 82 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-18 10:44 JST

Review Worker (Production) is degraded

Automatically detected by monitoring. Signal: 6 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-18 09:05 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 71 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-18 09:05 JST

Review Worker (Production) is degraded

Automatically detected by monitoring. Signal: 5 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 23:13 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 64 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 23:13 JST

Review Worker (Production) is degraded

Automatically detected by monitoring. Signal: 5 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 18:38 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 77 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 18:02 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 71 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 16:42 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 72 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 14:42 JST

Review Backend (Production) is degraded

Automatically detected by monitoring. Signal: 16 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review

Resolved auto-detected2026-09-17 12:15 JST

Review Backend (Production) is unavailable

Automatically detected by monitoring. Signal: 67 Sentry error(s)/10m First observed: this incident was opened after 2 consecutive failed checks.

Review