Performance Testing Services Company
Ensure your software runs smoothly, fast, and reliably under any load or stress — for web, mobile, and APIs. Our experienced engineers identify bottlenecks before your users do.
What we test
- Load testing Capacity and bottlenecks at expected and peak load
- Stress testing Where your system breaks when pushed past its limits
- Endurance testing Long-run stability, memory leaks and degradation
- Scalability testing Readiness to scale up or out as demand grows
- Volume testing Behavior as data sets grow large
- Concurrency testing Contention and deadlocks with many simultaneous users
- 5+ Performance audits delivered
- 17+ Years of engineering experience
- 10K+ Concurrent users simulated
- ISO 27001 Certified information security
- ISO 9001 Certified quality management
What Do You Need to Know About Your App?
Pick the question closest to your situation and see how we would answer it.
Will it handle launch day?
Validate expected and peak load before a major release goes live.
Where does it break?
Push past normal limits to find the exact point of failure and how it recovers.
Will it stay stable over time?
Run sustained workloads to catch memory leaks and gradual degradation.
Can it grow with us?
Check how the system scales up or out as users and demand increase.
Does it cope with big data?
Confirm response times hold up as data volumes grow.
What if everyone logs in at once?
Find contention, deadlocks and synchronization problems under simultaneous use.
Worried about how your app performs under load?
Our performance engineers are ready to test, benchmark and optimize your application.
Performance Testing Services We Offer
Comprehensive performance evaluation across every dimension of your application's behavior under load
Load Testing
Evaluates how your system handles expected and peak loads without degradation, identifying maximum capacity and bottlenecks.
- Peak load
- Capacity
- Bottlenecks
Stress Testing
Pushes your system beyond normal limits to show how it behaves under extreme conditions and where it breaks.
- Breaking point
- Robustness
- Recovery
Endurance Testing
Runs sustained workloads over long periods to check stability and detect memory leaks and resource degradation.
- Long-run
- Memory leaks
- Stability
Scalability Testing
Assesses your ability to scale up or out by adding resources, which is critical for businesses planning rapid growth.
- Scale up
- Scale out
- Growth planning
Volume Testing
Tests performance with large volumes of data to confirm consistent handling and response times as datasets grow.
- Large datasets
- Response times
- Data growth
Concurrency Testing
Checks behavior with many simultaneous users, exposing resource contention, deadlocks and synchronization problems.
- Simultaneous users
- Deadlocks
- Contention
Mobile and API Performance
Performance testing for mobile apps, web services and APIs using tools such as LoadRunner and JMeter.
- JMeter
- LoadRunner
- Web services
Analysis and Optimization
We do not just find issues. We recommend fixes and re-test so you can see the gains.
- Detailed reports
- Recommendations
- Re-testing
Built for Real Business Problems
Real engagements, real outcomes. Every result below comes from a documented client case study.
Website Redesign at New Life Agency
New Life Agency needed a modern, professional website that truly reflected their reputation. D2i Technology redesigned their digital presence from the ground up — delivering a faster, more intuitive, and fully responsive experience built to support their continued growth.
Read Full Case Study of Website Redesign at New Life AgencyDevOps Transformation at ZiffyCar
ZiffyCar's peer-to-peer car rental marketplace was expanding fast — 50+ cities, thousands of hosts, and booking traffic that spiked hard every weekend. D2i Technology built the DevOps foundation to match that growth, turning a fragmented, contractor-heavy delivery model into a streamlined pipeline that achieved 10× faster releases and a 40% reduction in DevOps spend.
Read Full Case Study of DevOps Transformation at ZiffyCarCustom Web Application at Okara Enterprise
Okara Enterprises, a global logistics company, was held back by outdated systems that couldn't keep pace with the complexity of modern supply chain operations. D2i Technology delivered a cloud-based solution that saved $500K annually and transformed customer satisfaction.
Read Full Case Study of Custom Web Application at Okara EnterpriseWhy Performance Testing Matters
Performance testing measures the speed, response time, stability, reliability, scalability and resource usage of an application under a particular workload, so bottlenecks are removed before they reach real users. It complements manual and automation testing as part of a well-rounded testing strategy.
Speed users notice
Response times that keep people on your site and in your app.
Stability under pressure
No surprises when traffic peaks or a campaign goes live.
Confidence to grow
Know how far your current setup can scale before you need more.
Avoid costly outages
Fixing a bottleneck in test is far cheaper than fixing it in production.
Actionable insight
Clear reports tell you what to fix, not just that something is slow.
Which Test Do You Need?
Each test answers a different question. Here is how we would match them.
| If you want to know... | Consider... |
|---|---|
| If it copes with expected and peak traffic | Load testing |
| What happens beyond its limits | Stress testing |
| If it stays healthy over hours or days | Endurance testing |
| If adding resources really adds capacity | Scalability testing |
| If large data sets slow it down | Volume testing |
| How it behaves with many simultaneous users | Concurrency testing |
Our Performance Testing Steps
A proven 6-stage process that turns performance objectives into measurable, optimized outcomes
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Step 01
Define Goals
Agree metrics such as response time, throughput and resource use.
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Step 02
Model Scenarios
Build realistic scenarios that simulate real usage and workloads.
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Step 03
Prepare
Set up hardware, software and network to mimic real conditions.
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Step 04
Execute
Run the tests, monitor behavior and gather metrics.
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Step 05
Analyze
Find bottlenecks, scalability issues and optimization areas.
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Step 06
Improve
Tune the system and repeat the tests to confirm the gains.
What Happens After You Contact D2i?
No big commitment up front. Here is what the first few weeks look like.
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Step 1: 30-minute discovery call
We listen to what you are launching and what worries you.
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Step 2: Objectives and scope
We agree the metrics, workloads and environments.
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Step 3: Test plan proposal
Approach, team and estimate in writing.
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Step 4: Environment setup
Test environment and scenarios are prepared.
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Step 5: Start testing
First test runs begin and results start to flow.
We Don't Stop at Running a Load Test
You get clear answers, concrete recommendations and the confidence to launch.
Tailored
Test plans shaped by your architecture, expected workloads and release goals.
Clearly Reported
Response time graphs, throughput metrics, error rates and resource utilization.
Actionable
Concrete recommendations to optimize performance, not just a list of numbers.
Cross-Platform
Web apps, mobile apps, APIs and enterprise systems covered.
Fast Turnaround
Rapid test cycles with quality assurance to meet your launch deadlines.
Trustworthy
ISO 27001 and ISO 9001 certified processes behind every engagement.
Performance Built Into Every Release
Performance shouldn't be a last-minute check before launch. We make it a repeatable part of how you release, so regressions are caught early.
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Objectives
Targets for response time, throughput and resource use are agreed up front.
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Scenarios
Realistic user journeys and workloads are scripted.
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Environment
A test setup that mirrors production conditions.
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Execute
Tests run while system behavior is monitored closely.
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Analyze
Results are turned into bottlenecks, fixes and a re-test plan.
- JMeter
- LoadRunner
- Response time
- Throughput
- Error rates
- Resource utilization
- Web
- Mobile
- APIs
Tools, Platforms and Metrics
What we use, what we cover and what you get back after a performance engagement.
Load Tools
- JMeter
- LoadRunner
Platforms
- Web applications
- Mobile apps
- Web services
- APIs
- Enterprise systems
Metrics
- Response time
- Throughput
- Error rates
- Resource utilization
Deliverables
- Test plan
- Detailed report
- Recommendations
- Re-test results
Not Sure Where to Start?
Tell us where you are and what you need. We will suggest a starting point.
You're probably looking for
Choose a stage to see our suggestion
Your answers stay on this page. Nothing is sent until you contact us.
How Can We Work Together?
Whether you need a one-off load test or dedicated performance testers from India to extend your own team, we match the engagement to your project size, budget and timeline.
Test Before Launch
A focused performance audit with test plan, execution, analysis and recommendations.
Best for: Teams with a launch, campaign or release to validate.
Extend My QA Team
Dedicated performance engineers who work inside your process and test every release.
Best for: Companies that already have a product and a delivery team.
Own My Performance
An ongoing partner for benchmarks, tuning and capacity planning as you grow.
Best for: Businesses that want performance managed continuously.
Choose How You Pay
Dedicated Team
Monthly retainer for long-term projects or ongoing release cycles, with predictable billing.
- Full-time dedicated performance engineers
- Daily standups and sprint planning
- Maximum cost efficiency
Fixed-Price Project
For well-defined performance audits with clear scope and deliverables. Agree on price, timeline and milestones up front.
- Clear scope and milestones
- Fixed budget, no surprises
- Defined delivery dates
Flexible Hourly
Pay only for hours worked. Best for one-off load tests, pre-launch benchmarks or expert help on a flexible schedule.
- No long-term commitment
- Transparent time tracking
- Scale up or down any time
Why Companies Work With D2i
We help you meet user expectations on speed, reliability and scalability, and launch with confidence.
Expert Engineers and Industry Tools
Extensive experience with JMeter and LoadRunner across web, mobile and API platforms.
Customized Testing
Test plans tailored to your application's architecture and expected workloads.
Detailed, Actionable Reports
Clear reports with insights and recommendations to optimize performance.
Web, Mobile, API and Enterprise
Comprehensive coverage for web apps, mobile apps, APIs and enterprise systems.
Fast Turnaround, Quality Assured
Rapid test cycles backed by rigorous quality assurance to meet launch deadlines.
Cost-Effective Engagement
India-based performance engineering at up to 60% savings versus onshore teams.
What Clients Say
In recognition of exceptional performance, dedication, hard work, passion, and commitment to excellence — D2i Technology’s invaluable contribution continues to make a significant impact in support of our All Hazards, One Health, One Nature mission.
Allison A. Sakara
Co-Founder & Executive Director, High Alert Institute
Their DevOps Services in USA helped us significantly reduce deployment time and infrastructure costs. D2i Technology streamlined our CI/CD pipelines and improved system stability. The results were visible within weeks, and their DevOps expertise truly made a difference.
DevOps Services & Solutions (USA)
D2i Technology is a highly dependable Web Development Company in India. From requirement gathering to final delivery, their team demonstrated strong technical expertise and ownership. The final product was robust, user-friendly, and built exactly as envisioned.
Web Development Company (India)
Frequently Asked Questions
The questions we hear most before a project starts.
Build Faster, More Reliable Software with D2i Technology
Whether you need a one-time load test before launch or an ongoing performance partner — D2i Technology is ready. Let's identify your bottlenecks and optimize for scale.
No obligation. Start with a 30-minute discovery conversation.