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What is Loadster?

Loadster helps engineering and SRE teams protect uptime and customer experience without standing up their own testing infrastructure. The platform combines on-demand load testing with continuous synthetic monitoring, so teams validate capacity before launches and catch problems in production between them. Load tests run from cloud regions and simulate users at any scale — from a few hundred to many thousands of concurrent virtual users. HTTP, real browser, and Playwright-based bots cover the range from API throughput checks to full end-to-end user journeys. Reports break down response times, error rates, page rendering metrics, and per-user playback, then save into a shared history that stakeholders can review together. The same scripts can be repurposed as 24/7 monitors that run continuously from multiple regions. Incidents flow through configurable notification policies to email, SMS, voice, or integrations like Slack and PagerDuty, and maintenance windows pause monitoring during planned work. Status pages give external audiences a clear view of service health. Loadster is consumption-priced through Loadster Fuel, with free units to evaluate the platform and no credit card required to sign up. Engineering, QA, and SRE teams use it to validate releases, catch regressions before users do, and respond faster when something breaks.

What is IBM Rational Test Virtualization Server?

IBM® Rational® Test Virtualization Server software enables consistent and timely testing during the development lifecycle. By creating virtual versions of specific parts or the entire application or database, it removes reliance on physical resources, allowing testing teams to commence their evaluations without delay. This strategy not only reduces the costs linked to establishing and maintaining intricate application environments but also enhances agility and predictability by facilitating continuous integration testing at earlier stages of development. The seamless integration with IBM Collaborative Lifecycle Management fosters improved collaboration in testing efforts. Key features of virtualization include data-driven and correlated response sequences, along with advanced stateful database emulation. A centralized repository for these virtualized environments permits the reuse, deployment, and modification of configurations to investigate a range of testing scenarios. Additionally, IBM Rational Test Virtualization Server integrates all the capabilities of IBM Rational Performance Test Server, which aids in the effective validation of application performance. With such extensive functionalities, organizations can confidently ensure their applications undergo thorough testing and optimization prior to deployment, ultimately leading to higher quality software releases. This commitment to rigorous testing practices significantly contributes to overall project success.

Media

Media

Integrations Supported

IBM Cloud
Opsgenie
PagerDuty
Slack

Integrations Supported

IBM Cloud
Opsgenie
PagerDuty
Slack

API Availability

Has API

API Availability

Has API

Pricing Information

$97
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Loadster

Date Founded

2013

Company Location

United States

Company Website

loadster.com

Company Facts

Organization Name

IBM

Date Founded

1911

Company Location

United States

Company Website

www.ibm.com/products/rational-test-virtualization-server

Categories and Features

Load Testing

API Load Testing
Database Load Testing
Load Test Performance Reporting
Mail Load Testing
Multilocation Load Testing
Multiple Protocol Support
Test Script Customization
Web Application Testing

Performance Testing

API Testing
Benchmarking
Cross Browser Testing
Debugging
Historical Reporting
Load Testing
Mobile Testing
Parallel Testing
Regression Testing
UI Testing
Web Testing

Software Testing

Automated Testing
Black-Box Testing
Dynamic Testing
Issue Tracking
Manual Testing
Quality Assurance Planning
Reporting / Analytics
Static Testing
Test Case Management
Variable Testing Methods
White-Box Testing

Categories and Features

Virtualization

Archiving & Retention
Capacity Monitoring
Data Mobility
Desktop Virtualization
Disaster Recovery
Namespace Management
Performance Management
Version Control
Virtual Machine Monitoring

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