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System history

Long-term reliability of every service, the incident trend and how the numbers are calculated.

42 incidents and 3 maintenance windows in this period. (Aug 4 – Nov 1, 2026, UTC)

Reliability by service

Weekly, Monday to Sunday · 13 weeksAug 4 – Nov 1, 2026Dates in UTC

  • Normal
  • Degraded performance
  • Outage
  • Planned maintenance
  • No monitoring data
  • Incident recorded

櫻佑旅遊 | 規劃一趟小旅行給自己。

100.000%Uptime · 90 days

Oct 26 – Nov 1, 2026

NormalUptime 100.00%

Normal days
7
Incidents
0
Checks
9,268

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
0
Outage time (incident records)
0 seconds
Data coverage
100.0%over the whole period

櫻佑旅遊🌸航空旅遊資訊網

99.957%Uptime · 90 days

Oct 26 – Nov 1, 2026

Degraded performanceUptime 99.91%

Normal days
0
Degraded days
7
Incidents
8
Outage time (incident records)
36 minutes
Checks
9,267

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
28
Outage time (incident records)
2 hours 23 minutes
Data coverage
100.0%over the whole period

YucDu 佑瑄 | 好きなことを、好きなだけ。

99.976%Uptime · 90 days

Oct 26 – Nov 1, 2026

Degraded performanceUptime 99.98%

Normal days
2
Degraded days
5
Incidents
1
Outage time (incident records)
4 minutes
Checks
9,269

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
10
Outage time (incident records)
59 minutes
Data coverage
100.0%over the whole period

Yucts 文檔

100.000%Uptime · 90 days

Oct 26 – Nov 1, 2026

NormalUptime 100.00%

Normal days
7
Incidents
0
Checks
9,268

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
0
Outage time (incident records)
0 seconds
Data coverage
100.0%over the whole period

YUCTS Transit

99.961%Uptime · 90 days

Oct 26 – Nov 1, 2026

Degraded performanceUptime 100.00%

Normal days
0
Degraded days
7
Maintenance days
7
Incidents
0
Checks
9,268

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
5
Outage time (incident records)
13 minutes
Data coverage
97.5%since monitoring began on Oct 23, 2026

Monitoring began on Oct 23, 2026. The 80 days before it are shown as “no monitoring data”. Data on 10 of 90 days

YUCTS Search

100.000%Uptime · 90 days

Oct 26 – Nov 1, 2026

NormalUptime 100.00%

Normal days
3
Days without data
4
Maintenance days
3
Incidents
0
Checks
2,673

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
0
Outage time (incident records)
0 seconds
Data coverage
100.0%since monitoring began on Oct 30, 2026

Monitoring began on Oct 30, 2026. The 87 days before it are shown as “no monitoring data”. Data on 3 of 90 days

YUCTS 旅遊優惠

100.000%Uptime · 90 days

Oct 26 – Nov 1, 2026

NormalUptime 100.00%

Normal days
3
Days without data
4
Incidents
0
Checks
2,668

Use the arrow keys, Home and End to move between periods. Enter opens the days of a week or month; Escape goes back.

Incidents
0
Outage time (incident records)
0 seconds
Data coverage
100.0%since monitoring began on Oct 30, 2026

Monitoring began on Oct 30, 2026. The 87 days before it are shown as “no monitoring data”. Data on 3 of 90 days

  • Weekly and monthly uptime is weighted by the actual numbers of successful and total checks, not averaged from daily percentages. A short outage marks its day without colouring the whole week or month.
  • Uptime comes from every check; outage time comes from incident records (major and critical incidents, excluding planned maintenance). The sources differ, so the two numbers need not match.
  • One incident can affect several services, so the per-service counts can add up to more than the site-wide total.
  • Data coverage is the share of expected checks recorded since the service was added to monitoring. Days before that, or without results, are shown as “no monitoring data” and count neither as up nor as down.

Incident trend

Incidents started per week, by severity.

MaintenanceMinorMajorCritical

Use the left and right arrow keys to move between bars.

Data table
StartedMinorMajorCriticalMaintenance
Aug 40000
Aug 100000
Aug 170100
Aug 240100
Aug 310400
Sep 70000
Sep 140300
Sep 210300
Sep 280000
Oct 50000
Oct 120901
Oct 190803
Oct 260900

How we measure

  1. Each service is checked every minute from Cloudflare’s network with an HTTP request (8-second timeout, up to two retries 3 seconds apart).
  2. Before an outage is reported, the result is confirmed with a second method (a browser-like HEAD and GET with cache bypass). If either method gets an answer, the service is not reported down.
  3. Responses slower than the service’s threshold (1 second by default) are reported as slow. A failed content check is also reported as slow.
  4. An incident opens automatically after a confirmed outage and closes after five consecutive successful checks. The YUCTS team can also post incidents and updates manually.
  5. Uptime is the share of successful checks. Periods without checks (for example before a service was added) are shown as “no data” and are excluded rather than counted as up.
  6. Availability for the service level objective uses incident durations: overlapping incidents are merged, and planned maintenance windows are excluded from both the downtime and the measured time.
  7. Raw checks are kept for 24 hours and daily summaries for 365 days. All times are stored in UTC.