Cloud stress testingHold the pressure, and see what gives way over time.
A cloud stress test holds heavy load on one verified site from cloud infrastructure for up to an hour, to show how much it degrades, in which phase errors begin and whether it recovers.
20 cloud stress tests a month on Business.
36 ms
peak p95
1.1×
degradation at peak
0%
error rate
From the sample report: 85,493 requests, none failed.
The highlights.
A site can pass a short burst and still fade under an hour of pressure. Connections fill, queues back up, memory creeps. A quick test never stays long enough to see it.
Four steps. From pressure to verdict.
Verify the asset
Every test runs against a domain you've proven you own. No testing systems you don't control.
Sustain the pressure
Real cloud infrastructure climbs to the peak you choose and holds it, in a run of one minute up to an hour.
Watch it over time
We record each phase and a reading every 5 seconds: degradation, the phase where errors begin, and whether the site recovers.
Read the verdict
A risk rating set by fixed rules, and an AI summary of what happened under sustained load and what to check.
What held, and what slowly gave way.
The report gives the peak p95, the degradation factor, peak throughput, the phase where errors began if they did, and whether the site recovered, with charts of the whole run.
Cloud stress report
Sample reportExample site
Sustained peak
50 users
Peak p95
36 ms
Error rate
0%
Degradation
1.1×
AI summary
Latency stayed essentially flat — baseline p95 of 34 ms, peak p95 of 36 ms, a 1.1× degradation within measurement noise — while absorbing over 2,100 requests per second at peak with zero errors, and it recovered once the load dropped. Results this clean often mean a CDN is serving cached responses at the edge. If your site sits behind a CDN, this flat result may reflect the CDN rather than your own server.
A performance assessment, not a penetration test.
Branded, downloadable, shareable: the PDF carries the same page, ready for a review or a vendor questionnaire.
What a cloud stress test measures.
Four figures from the sample run, and why each one matters.
36 ms
Peak p95
95th-percentile latency while heavy load was held at its peak. The number that tells you what users feel under sustained pressure, not just a quick spike.
1.1×
Degradation factor
Peak latency versus baseline. Near 1× means the system stayed flat under prolonged strain — the mark of a well-provisioned stack.
2,180 req/s
Peak throughput
Requests absorbed per second at the sustained peak, measured from outside your network.
0%
Error rate
Share of requests that failed under sustained load. Zero across tens of thousands of requests means nothing buckled as the pressure held.
What you get.
- Up to 20 cloud stress tests every month on Business
- Heavy, cloud-generated load: a peak of 50 to 1,000 virtual users
- Degradation and error onset, phase by phase and every 5 seconds
- Whether the site recovers once the load lifts
- An AI summary of what happened and what to check
- See all features ›
Edge stress test vs. Cloud stress test
This is the heavy, cloud-run stress test on dedicated infrastructure. The lighter edge stress test (Pro) is a fast, low-cost way to spot early instability before you commit to a full cloud run.
| What is compared | Edge stress test (Pro) | Cloud stress test (Business) |
|---|---|---|
| Where it runs | Cloudflare's edge network | Isolated cloud infrastructure |
| Peak load | A fixed peak of 6 connections | A peak of 50 to 1,000 virtual users |
| Best for | Spotting early instability | Sustained pressure at a peak you choose |
| Method | Four phases in 30 to 90 seconds | Four phases over 1 to 60 minutes |
Is it the right tool?
A strong fit when
- A multi-day sale or a long campaign is coming.
- You suspect a slow leak: something that only shows after sustained load.
- The Pro stress test held and you want far heavier pressure.
Not the best fit when
- You only need one level held for a minute or two. Cloud load testing does that.
- You want an early, low-cost check. The Pro stress test is lighter.
- You need a penetration test: a person trying to break in. We do not offer one.
This is a heavy test. It runs only against a site you have verified, you set the profile, the peak and the duration, and you type CONFIRM before it starts. A running test can be aborted.
Included in Business.
Business
20 cloud stress tests a month, up to 1 hour each (a soak up to 4), 100 sites
$199 a month₹19,499 a month in India
In more detail.
What a cloud stress test measures
Where a cloud load test holds one level, a cloud stress test climbs from a low baseline to a peak, holds it, and comes back down, to see what gives way. It records the degradation factor (how much slower you get from baseline to the sustained peak), the peak p95, the phase where errors begin, peak throughput, and recovery — whether response times come back near the baseline once the load drops. A site can pass a short burst and still degrade under prolonged pressure; the charts of the whole run show that drift, and a soak run can hold its load for up to four hours.
How it works
A cloud stress test runs from cloud infrastructure and follows a four-phase profile — baseline, climb, peak and recovery — in one of four shapes: gradual, aggressive, spike or soak. It is available on the Business plan. You choose the peak, from 50 to 1,000 virtual users, and the length, and you type CONFIRM before it starts, because this is a heavy test that can slow a site or take it offline — unlike the edge stress test, which is a light check. Every run is gated behind verified domain ownership, and a running test can be aborted.
When to run one, and what's in the report
Reach for it before a sustained high-traffic period — a multi-day sale, a long campaign — or whenever you want to know how your site behaves under prolonged strain. The report is a downloadable, branded PDF: the peak p95, the degradation factor, the phase where errors began (if they did), whether the site recovered, charts of the whole run, and an AI summary that points to what to check first. Example result: a sustained peak with a 1.1× degradation and zero errors across 85,493 requests, and a full recovery. A result this flat can also mean a CDN absorbed the load at its edge — so a fast result may reflect the CDN rather than your own server.
What a cloud stress test is not
A cloud stress test is a performance assessment, not a penetration test: it measures how your site holds up under sustained load; it does not probe application logic or attempt exploitation. A penetration test is a separate, human-led engagement. BCDRPulse does not offer one.
Questions people ask first.
Is this a penetration test?
No. Cloud stress testing is an automated performance assessment — it holds heavy load to show degradation and recovery. It does not probe application logic or attempt exploitation. A penetration test is a separate, human-led engagement. BCDRPulse does not offer one.
How is this different from the edge Stress Test?
The edge stress test peaks at six connections from Cloudflare's network — quick and cheap. This cloud stress test sustains a peak of up to 1,000 virtual users from dedicated infrastructure for up to an hour, surfacing degradation a light test can't reach.
Does it work behind a CDN like Cloudflare?
Yes. Where a CDN absorbs the load at its edge, the result reflects the edge rather than your own server — keep that in mind when reading the numbers.
How many cloud stress tests can I run?
Up to 20 every month on the Business plan, against any of your verified assets. The limit resets at the start of each calendar month.
How is the cloud stress test different from the edge stress test?
The edge stress test is a quick, light check from Cloudflare's network. The cloud stress test holds much heavier load from cloud infrastructure over a longer run, to show degradation a light test cannot reach.
What does 'degradation over time' tell me?
Whether your site stays steady under prolonged load or slowly gets worse — the signature of a resource filling up (connections, a queue, and the like) rather than a one-off spike it shrugs off. The report's charts show it across the run; the rating itself compares the peak with the baseline.
Does a flat, error-free result mean my origin is fine?
Not necessarily. If a CDN is absorbing the load at its edge, a fast result may reflect the CDN rather than your own server — keep that in mind when reading the numbers.
See what an hour of pressure does.
Signing up is free and starts uptime monitoring for 10 sites. Running cloud stress testing needs the Business plan.
- 1.1× degradation, a 36 ms peak p95 and 0% errors are the figures in the sample report, not a customer's site.
- Allowances are per calendar month and can be used on any of your verified sites.
- Introductory prices, before GST or VAT. Regular prices are $99 and $399 a month (₹9,699 and ₹38,999 in India).