What is PFLB?
PFLB (Performance Lab) is a cloud-based load testing platform with both a self-service SaaS and a managed-services arm. Teams can build tests in the PFLB UI, import JMeter (.jmx) scripts, and dispatch them across cloud agents in multiple regions. The platform reports on response times, throughput, error rates and SLA breaches with dashboards aimed at performance engineers and QA leads.
PFLB sits in the "professional load testing service" segment — positioned for enterprise customers who want a managed cloud platform plus optional consultancy. It supports JMeter and HTTP/HTTPS protocol-level testing, with browser-based testing and API monitoring as either separate tools or services.
When PFLB is the right tool
PFLB is a fair fit when you want:
- Managed cloud load testing. A dashboard-led platform that handles agent provisioning across multiple regions.
- JMeter cloud execution. Lift existing .jmx scripts into a managed cloud runtime without maintaining your own grid.
- Optional consultancy. Performance Lab's services arm for teams without in-house load testing expertise.
- Enterprise procurement. Sales-led contracts and SLAs that fit corporate procurement processes.
If you need cloud JMeter execution with the option of professional services, PFLB delivers that combination.
Where PFLB stops being enough
PFLB's services-led model creates friction when self-service speed matters:
- Pricing opacity. Plans are typically "contact sales" with quote-based tiers; harder to compare against per-test cloud tools.
- No bundled Core Web Vitals. CWV and Lighthouse monitoring are a separate purchase or a separate tool.
- API monitoring fragmented. Continuous API uptime and SLA alerts are typically a different product line.
- Browser-based testing limited. Modern web apps with heavy JavaScript flows often need a dedicated browser load tool.
- Self-service iteration speed. Procurement and configuration cycles can slow down developer-led teams who want to add load tests to CI/CD without a sales call.
LoadFocus vs PFLB — feature comparison
How LoadFocus compares against a typical PFLB enterprise plan. Pricing accurate as of May 2026.
| Feature | LoadFocus | PFLB |
|---|---|---|
| Cost | Free tier; from $29/mo | Quote-based, sales-led |
| JMeter cloud execution | Yes (up to 12,500 VUs) | Yes |
| Browser-based load testing | Yes (Selenium/Playwright) | Limited |
| API monitoring | Yes | Separate product |
| Core Web Vitals monitoring | Yes | No |
| Multi-region test locations | 25+ globally | Multiple regions |
| Self-service signup | Yes (no sales call) | Sales-assisted |
| Pay-per-test pricing | Yes | Enterprise contract |
| CI/CD integration | Yes (API + GitHub Action) | API available |
| Professional services | Self-service | Yes (services arm) |
FAQ
Is LoadFocus a direct replacement for PFLB?
For self-service cloud load testing yes — LoadFocus runs JMeter and browser tests at cloud scale with transparent pricing. Teams that specifically want managed-services consultancy alongside the platform may still choose PFLB for the services component.
Can we lift our JMeter scripts directly?
Yes. Upload .jmx files to LoadFocus and execute against cloud agents up to 12,500 virtual users. Most teams migrating from PFLB report that JMeter scripts run with no changes.
Does LoadFocus include API monitoring?
Yes — on the same account. LoadFocus combines load testing, API monitoring (uptime, SLA, JSON Schema validation) and Core Web Vitals monitoring in one product, which usually replaces two or three separate vendors.
How does pricing compare?
PFLB is typically sales-led with quote-based tiers, which makes total cost less predictable. LoadFocus uses transparent monthly tiers from $29/month with concurrent VUs and test minutes published upfront. For most non-enterprise use cases, total cost is lower and procurement is faster.
How long does setup take?
Minutes. Sign up, paste a URL or upload a .jmx, pick a load profile and run — no sales call, no agent provisioning, no contract negotiation.
Can it run in CI/CD?
Yes. LoadFocus exposes a REST API and a GitHub Action so load tests run on every merge with thresholds for response time, error rate and concurrency. PFLB has an API but the integration pattern often involves more setup.
Try LoadFocus free
If you're evaluating PFLB or already using it and want a self-service cloud platform with API and page speed monitoring on the same account, LoadFocus is worth a parallel trial. Sign up at loadfocus.com/signup — no credit card — and run your first cloud load test in minutes.
