No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
Easy installReal user dataNo sales callsFind out in minutes — fix your INP score, speed, and more.
No credit card required
"Catch Metrics gave us the path we needed to optimise ad speed and drive vital new revenue across our portfolio"
Lisa Kemp
Head of Ad Product, National World
"We finally had the ability to work with somebody with extensive Next.js and Prebid experience which is very complicated to get right and difficult to find."
Nicolas Hulsmans
Co-founder, Dexerto
"Catch Metrics' 60-Day Site Speed Sprint was a game-changer for us. They identified key performance issues, provided a clear roadmap to fix them, and boosted our numbers in just weeks."
Vanessa Horgan
SVP, Revenue Operations at FootballCo.
Most tools stop at surface-level metrics.
We dig into every tag, wrapper, and script so you can see—and fix—the true performance culprits.
Total Visibility
Get deep insights into every tag, wrapper and script dragging down your real-user metrics.
Vendor Impact
Measure the load-time cost of each third-party vendor across devices, browsers and regions.
Speed Gains
Prioritize fixes to boost page speed and deliver faster experiences for real users.
Third Party Script Breakdown
See which tags, wrappers, and scripts are impacting real user performance — by domain, size, and load time.
Fix INP with Confidence
Get specific, actionable insights to improve your site's Interaction to Next Paint (INP).
Real-User Monitoring (RUM)
Understand script performance as your actual users experience it — not just in synthetic tests.
Privacy-first, Dev-friendly
Does not require consent in GDPR regions and integrates seamlessly with dev tools.
Your third-party party performance solution
Explore detailed answers to the most commonly asked questions about our platform, features, integrations
Is CatchMetrics really free?
No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
What is required to set it up?
No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
Will this slow down my site further?
No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
What kind of sites is this for?
No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
Do you store user data?
No — our script is ultra-lightweight, async-loaded, and runs with no performance penalty.
Easy installReal user dataNo sales callsCatch Metrics is the easiest way to diagnose and fix third-party performance issues — starting today.