Ward finds performance problems in your code and shows youexactly how to fix them.
Stop guessing. Start shipping.
Performance Regression
INP degraded 340ms
Affected
68% mobile
Since
v2.4.1
Problem
React re-renders
Filter state in parent causes full list re-render on every keystroke
Solution
Optimize renders
The cost of poor performance is real and measurable
"53% of mobile users abandon sites that take over 3 seconds to load
"Users perceive delays over 100ms as laggy. 200ms+ feels broken
"Amazon found every 100ms of latency cost them 1% in sales
Ward catches these issues before your users do
Stop losing customers to preventable performance problems
From the performance experts at
No complex configuration. Ward works with your existing stack.
One command to add our lightweight SDK. Works with any JavaScript framework.
Terminal
npm install @ward/sdkYour code
import Ward from '@ward/sdk'Ward.init({ projectId: 'app' })Push your code. Ward automatically uploads sourcemaps for precise debugging.
CI/CD Pipeline
ward upload-sourcemaps ./distWard is now monitoring. Get instant alerts and fixes when issues occur.
Monitoring
Active
Alerts
Real-time
First insight in ~10 seconds
Ask: "What's slow on my site?"
Ward gives you answers, not more data to analyze
Ward handles the monitoring so you can focus on building
Find issues before users report them. Ward continuously monitors and alerts you instantly.
No cryptic errors. Ward explains what broke, why, and what impact it has in plain English.
Get the specific code changes needed. Copy, paste, deploy. Problem solved.
Know exactly which deployment caused issues. See the specific commits and changes.
Track LCP, INP, CLS and other metrics that actually matter for user experience.
Upload sourcemaps to get exact line numbers and file names in your error reports.
Those tools give you dashboards and data. Ward gives you answers. When your site is slow, DataDog shows you 50 graphs. Ward tells you 'Your checkout page is slow because Stripe SDK is loading synchronously on line 142 of checkout.js. Here's the fix.' No investigation needed.
Very accurate. Ward analyzes your actual code (via sourcemaps), correlates it with performance data, and suggests fixes that have worked for similar issues. About 85% of fixes can be applied directly, while 15% might need minor adjustments for your specific setup.
No. Our SDK is under 10KB gzipped and runs asynchronously. It adds less than 1ms to your page load time. We use sampling and batching to minimize network requests. Most teams see zero performance impact.
Ward catches: Slow API calls, render-blocking scripts, memory leaks, large DOM sizes, unoptimized images, N+1 queries, slow database queries, JavaScript errors, bundle size issues, third-party script problems, and more. Basically, if it affects performance, Ward will find it.
Minimal changes. Just 2 lines to initialize Ward. That's it. No decorators, no wrapping components, no custom logging. Ward automatically instruments your app and starts collecting data. Your existing code stays exactly the same.
Ward only alerts on real issues affecting real users. We ignore one-off glitches and focus on patterns. Every alert includes the evidence: how many users affected, which pages, what browsers, and the exact impact on metrics. You'll never chase ghosts.
Yes. Ward complements your existing tools. Keep using DataDog for infrastructure, Sentry for errors, etc. Ward focuses on one thing: finding and fixing performance issues. Many teams use Ward alongside their existing stack.