How to use Website Uptime & Response Time Monitor
The Website Uptime Monitor turns your browser tab into a live status dashboard for any URL. Pick an interval — every 30 seconds, minute or 5 minutes — and the tool repeatedly probes the site from our servers, plotting response time on a live chart while tracking uptime percentage, fastest and slowest responses and every status change in an incident log. It is the perfect companion while you watch a deployment roll out, wait out an outage, or investigate a server that feels intermittently slow, and the whole sample history can be exported as CSV for reports.
- Enter the website URL you want to monitor.
- Choose a check interval: every 30 seconds, 1 minute or 5 minutes.
- Click Start — checks run automatically while this tab stays open.
- Watch the live response-time chart, uptime percentage and incident log update.
- Pause or stop anytime, and download the collected samples as CSV.
Spotting intermittent problems a single check misses
One-off "is it down" checks only capture a single moment, so a server that fails every few minutes can easily look healthy. Continuous sampling reveals the patterns that matter: periodic timeouts that line up with a cron job, latency spikes under load, or a load balancer sending a fraction of requests to a dead backend. Even a few minutes of monitoring at 30-second intervals paints a far more honest picture of stability than any single probe, and the incident log timestamps each transition so you can correlate failures with deploys or traffic peaks.
How to read the response-time chart
A flat line at a low value is the healthy baseline. A slowly rising trend often means resource exhaustion — memory pressure, a filling connection pool or a queue backing up. Sharp isolated spikes usually indicate cold caches, garbage-collection pauses or a slow upstream dependency, while gaps marked as down mean the probe received no usable response at all. Because checks originate from our servers, the chart reflects general internet reachability rather than your local Wi-Fi, making it good evidence when escalating to a host.
| Pattern | Likely cause |
|---|---|
| Flat, low latency | Healthy server with stable load |
| Gradual upward trend | Resource exhaustion or growing queue |
| Isolated sharp spikes | Cold cache, GC pause or slow upstream call |
| Regular periodic spikes | Scheduled job competing for resources |
| Intermittent down samples | Crashing process or unhealthy backend in rotation |
Glossary
- Uptime percentage
- The share of checks that returned a successful response during the monitoring session.
- Response time
- The time between sending a request and receiving the server’s response headers, in milliseconds.
- Incident
- A transition between up and down states, recorded with a timestamp in the incident log.
- Check interval
- How often the monitor probes the target URL, such as every 30 seconds or 5 minutes.
- Probe
- A single automated request sent to the target site to measure its availability and speed.
Related reading
Frequently Asked Questions
Why use Website Uptime & Response Time Monitor?
- Watch a live response-time chart update automatically at your chosen interval
- See uptime percentage, min/avg/max latency and total checks at a glance
- Catch intermittent failures that a single one-off check would miss
- Get a timestamped incident log of every up/down transition
- Export the full sample history as CSV for postmortems and reports
Common use cases
- Watch a production site recover in real time during an outage
- Verify a deployment did not degrade response times after release
- Gather evidence of intermittent downtime before contacting a hosting provider
- Monitor a flaky staging server while you reproduce a bug
- Compare latency before and after enabling a CDN or cache layer
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