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Understanding Response Time Metrics

Learn how to interpret the response time data shown on the GoZen Host Status Page.

What is Response Time?

Response time (also called latency or ping) measures how long it takes for a service to respond to a request. It's measured in milliseconds (ms).

Response Time Quality
< 100ms Excellent
100-300ms Good
300-500ms Acceptable
500-1000ms Slow
> 1000ms Very Slow

Metrics Explained

Current Response Time

The most recent ping measurement. This tells you how the service is performing right now.

Example

42ms means the service responded in 42 milliseconds.

Average Response (24h)

The average response time over the last 24 hours. This smooths out temporary spikes and gives you a better picture of typical performance.

Example

65ms avg means responses averaged 65ms over the past day.

P95 Latency

The 95th percentile response time. This means 95% of requests were faster than this value, and only 5% were slower.

Why P95 Matters

P95 filters out occasional outliers and shows you the "worst case" for most users. If P95 is 150ms, that means even your slowest typical requests complete in under 150ms.

Example

P95: 120ms means 95% of requests completed in 120ms or less.

Uptime Percentage

The percentage of time the service was operational:

Uptime Meaning Downtime per month
100% Perfect availability 0 minutes
99.99% Excellent ~4 minutes
99.9% Very Good ~43 minutes
99.5% Good ~3.6 hours
99% Acceptable ~7.3 hours

The Response Time Sparkline

The small chart displayed next to each service shows the response time trend.

Reading the Chart

High latency ─┐
              │   ╲
              │    ╲
              │     ╲___
Low latency ──┴──────────
              Old → New
  • Downward slope = Response times are improving (faster)
  • Upward slope = Response times are degrading (slower)
  • Flat line = Response times are stable
  • Spiky line = Response times are variable

What a Good Sparkline Looks Like

Pattern Meaning
Flat or gently sloping downward Healthy
Gradual upward trend or spikes Concerning
Sharp upward spike, sustained high Problem

Factors Affecting Response Time

Response times can vary based on:

  1. Your Location – Physical distance to our data centers
  2. Network Conditions – Internet routing and congestion
  3. Service Load – How busy the service is
  4. Time of Day – Peak usage hours may show higher latency
  5. Maintenance – Scheduled work may temporarily affect performance

What to Do About Slow Response Times

  • Check if there's an active incident on the status page
  • Wait a few minutes and check again
  • Contact support if it persists
  • Check your own internet connection
  • Try from a different network
  • The issue may be between your ISP and our network
  • We're already aware and working on it
  • Subscribe to alerts to get notified when it's resolved

Next Steps