Developing a web application is about more than just writing code and launching a product. Whether you're building an MVP or a full-scale platform, success depends on how well your app performs, evolves, and delivers value. That’s where KPIs (Key Performance Indicators) come in.
Tracking the right KPIs during your web application development journey gives you the data you need to stay on track, improve usability, and make smart decisions. Let’s explore the most important KPIs to monitor from development to post-launch.
1. Development Velocity
What it measures: How quickly your team is delivering features and fixes.
Track:
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Story points completed per sprint
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Features released per week/month
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Bug fix turnaround time
Why it matters:
It helps you identify bottlenecks, manage timelines, and ensure consistent progress in your web app development lifecycle.
2. Bug Rate / Error Rate
What it measures: Frequency and severity of bugs discovered during testing and after release.
Track:
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Number of bugs per feature/module
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Error logs from staging and production
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Frequency of regression issues
Why it matters:
A high bug rate can signal poor code quality, missed requirements, or testing gaps. Fixing issues early reduces long-term costs.
3. Deployment Frequency
What it measures: How often you push updates or new code to production.
Track:
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Weekly or monthly deployment count
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Average time between deployments
Why it matters:
Frequent, stable deployments indicate a mature development process and the ability to respond quickly to user needs or feedback.
4. App Downtime & Availability
What it measures: How often your app is accessible and running smoothly.
Track:
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Uptime percentage (target 99.9%+)
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Downtime duration and frequency
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Outage causes
Why it matters:
Consistent availability is key for user trust, SEO, and revenue. Even minor outages can lead to loss of users or sales.
5. Page Load Speed
What it measures: How quickly your app’s pages load across devices and networks.
Track:
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Time to first byte (TTFB)
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First contentful paint (FCP)
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Overall page load time
Why it matters:
Slow apps frustrate users and hurt SEO rankings. A responsive app leads to higher engagement and retention.
6. User Engagement Metrics
What it measures: How users interact with your app.
Track:
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Daily/Monthly Active Users (DAU/MAU)
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Session length and frequency
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Feature usage rate
Why it matters:
It tells you if users find your web app useful. Low engagement may suggest confusing UX, irrelevant features, or performance issues.
7. Security Metrics
What it measures: How well your app protects user data and resists threats.
Track:
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Number of vulnerabilities detected
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Failed login attempts
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SSL certificate validity
Why it matters:
Security issues can destroy user trust and lead to legal or compliance trouble. Prevention is cheaper than damage control.
8. Conversion Rates
What it measures: How many users complete a desired action (sign-up, purchase, booking, etc.).
Track:
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Signup to active user rate
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Trial-to-paid conversion
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Cart abandonment rate
Why it matters:
Conversions are often the end goal. A beautiful app that doesn’t convert is just window dressing.
9. Cost Per Feature / Budget Burn Rate
What it measures: How efficiently you’re using your development budget.
Track:
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Cost per feature/module
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Burn rate vs. project timeline
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Forecasted vs. actual spend
Why it matters:
Keeping development within scope and budget is essential, especially for startups and SMEs where every dollar counts.
Pro Tip: Hire the Right Team to Track the Right KPIs
To stay focused on outcomes—not just outputs—you need a development team that understands the “why” behind every metric. If you're looking to hire web app developers who think beyond just building and focus on performance, scalability, and user experience, you need professionals who track KPIs from day one.
Why QSS Technosoft is a Smart Development Partner
At QSS Technosoft, KPIs aren’t an afterthought. They’re baked into every web application development project. From agile sprints and QA audits to post-launch analytics, their team delivers data-driven solutions that help businesses grow and scale confidently.
With expertise in custom dashboards, monitoring tools, and scalable architecture, QSS ensures your app performs as beautifully as it looks.