We are happy to share great news: PFLB was rated number one in Goodfirms’ rating among Software Performance Testing companies. The rating is based on reviews and evaluations by members of international IT and business societies. We are also first among load testers!
We are grateful to our customers, partners, and, last but not least, to our team: technical specialists, engineers, and other employees who support all our projects throughout their lifecycle.
About PFLB
PFLB is a leading performance testing company based in the US. It has successfully completed more than 300 major load testing projects and is SOC 2 Type 2 compliant.
PFLB employs more than 450 specialists, and its clients include some of the biggest banks, retail companies, telecommunications providers, and many other organizations.
Related insights in blog articles
11 API Failure Causes and How To Solve Them

When an API fails, the consequences ripple quickly through the entire system. Transactions stall, integrations break, and frustrated users flood your support channels. Understanding exactly why API failures happen — and how to fix them — is essential for developers and businesses alike. This article examines the most common reasons behind API failures, explores the […]
API Mocking: A Complete Guide

Waiting for APIs to become available or stable can slow down entire projects. API mocking provides a smart way to avoid these roadblocks by simulating real API responses, keeping your teams productive and ensuring smoother integration down the line. In this guide, you’ll discover exactly what API mocking involves, how it differs from using real […]
API Endpoint: A Complete Guide

Modern applications rely heavily on APIs (Application Programming Interfaces) to communicate and exchange data across different systems. At the heart of this interaction lies the API endpoint — a fundamental concept that defines where and how data exchanges happen. This guide explains clearly what an API endpoint is, outlines its importance, and provides practical insights […]
gRPC vs. REST: Detailed Comparison

Choosing between gRPC and REST can feel confusing, especially if you’re trying to figure out the best way for your applications to communicate. This article breaks down the grpc vs rest comparison clearly, without jargon or confusion. You’ll learn exactly what each protocol is, the advantages and disadvantages of each, and understand why gRPC is […]
Be the first one to know
We’ll send you a monthly e-mail with all the useful insights that we will have found and analyzed
People love to read
Explore the most popular articles we’ve written so far
- Top 10 Online Load Testing Tools for 2025 May 19, 2025
- Cloud-based Testing: Key Benefits, Features & Types Dec 5, 2024
- Benefits of Performance Testing for Businesses Sep 4, 2024
- Android vs iOS App Performance Testing: What’s the Difference? Dec 9, 2022
- How to Save Money on Performance Testing? Dec 5, 2022