Understanding Per-Region Status and Graphs
Last updated: 2026-04-09
When a monitor is checked from multiple geographic regions, a single region failing does not mean your service is globally down. This guide explains how regional status is computed, what the graphs show, and how to interpret the per-region history strips.
How Global Status Is Determined
Each monitor is checked independently from every active region. After each check cycle the results are combined using quorum logic:
| Active region results | Global status |
|---|---|
| All regions up | Operational |
| Fewer than half the regions down | Degraded |
| Half or more regions down, at least one up | Partial Outage |
| All active regions down | Outage |
| All regions are stale (no check in >10 min) | Unknown |
A region is considered stale if its last check is more than 10 minutes old. Stale regions are excluded from the quorum calculation so that an offline monitoring agent does not falsely degrade your global status.
Reading the 90-Day History Strip
Each colored block (“tick”) in the 90-day strip represents one day. Colors indicate the worst status recorded that day:
- Green — Operational (≥99% uptime)
- Orange — Degraded (some slowness or minor failures)
- Orange-red — Partial Outage (one or more regions affected)
- Red — Outage
- Gray — No data recorded (monitoring gap — see below)
Hover over any tick to see the exact date, uptime percentage, and (for multi-region monitors) how many regions were affected.
Monitoring Gaps
Gray ticks mean no monitoring data was recorded for that day — typically because:
- The monitor was paused
- A monitoring agent was offline or being deployed
- The monitor was newly created and not yet active
Gray ticks are not counted as downtime. They appear in your history to show that the record is incomplete, not that your service was unavailable.
Per-Region History Strip
Multi-region monitors include an expandable Per-region history section. Click it to see a separate 90-day strip for each monitoring region.
The summary line shows:
- Total region count — e.g. “· 4 regions”
- Affected badge — orange if a minority of regions are currently affected, red if half or more are affected
Each per-region row shows:
- The region flag and short name
- A mini 90-day tick strip (same color coding as the global strip)
- Uptime percentage — only shown when the region has at least 14 days of data. For newer regions, a day count (e.g. “2d”) is shown instead to avoid misleading statistics.
Reading the Response Time Charts
Minute-by-minute chart (last 24 hours)
The top chart shows response time per minute. Colored background regions mark outage windows:
- Red background — Full outage: all active regions reported failure
- Orange background — Partial outage: only some regions failed
If you see an orange band, your service was likely reachable from most locations. Expanding the per-region history will show which specific regions were affected.
Hourly average chart
The second chart shows the average response time per hour. Smooth curves indicate stable performance; spikes correlate with the red/orange regions in the minute chart above.
Newly Added Regions
When you add a new monitoring region, its history starts from the addition date. During the first two weeks:
- The per-region strip shows gray placeholders for all days before monitoring began
- The uptime column shows a day count instead of a percentage
- Global uptime is not affected retroactively
This is expected behavior. The region’s statistics become meaningful after it has accumulated sufficient history.
Related
- Clearing Monitor History — how to reset a monitor’s data and start fresh