Measure the real experience
Track LCP, INP and CLS alongside FCP and TTFB. Compare p75 performance across pages.
The Site Qwality platform
Real user monitoring
Your site, from the other side of the screen. Understand real-world performance, find browser errors, and look closer at the sessions that matter.
Free tier included. No credit card required.
- Web Vitals
- Performance from real browsers
- Observe
- Understand aggregate trends
- Analyze
- Inspect selected sessions
Find the experience behind the numbers.
An average can hide a slow device or a broken journey. Move from the overall trend to the pages and sessions that need attention.
See the errors users see
Capture JavaScript exceptions and unhandled promise rejections with the session context that helps you investigate.
Choose where to look closer
Capture per-session detail and replay for sessions that match your recording rules. Keep the heavier collection under your control.
From a slow page to the session behind it.
Observe the trend. Narrow the audience. Inspect the experience.
The workflow / 01
Start with how the site feels.
Review performance trends and errors across your pages. Percentiles help separate the typical experience from the slower end of the audience.
Web performance / exampleExample
- Page
- /checkout
- Largest Contentful Paint
- 2.8 s
- Interaction to Next Paint
- 180 ms
- Cumulative Layout Shift
- 0.04
Illustrative values, not live measurements or a performance promise.
The workflow / 02
Find who is affected.
Filter sessions by browser, OS, country, visited page, errors, replay and frustration. Make the investigation specific before opening an individual session.
Session filters / exampleExample
- Visited page
- /checkout
- Browser
- Safari
- Country
- Germany
- Errors
- With errors
Open the matching sessions to see what those users hit.
The workflow / 03
Reconstruct the journey.
Open a captured session to follow page views, actions, resources and errors. A linked replay is available when that session matched a recording rule with replay turned on.
Session timeline / exampleExample
- 00:00
- Page view: /product
- 00:14
- Action: add to cart
- 00:26
- Page view: /checkout
- 00:31
- JavaScript error
Per-session detail and replay are selected by your recording rules.
What is the difference between Observe and Analyze?
Observe shows aggregate performance and error trends. Analyze opens the detailed timeline of a captured session, with a linked replay when one was recorded.
Does every session include a replay?
No. Aggregate collection and session recording are different. Per-session detail and replay are collected for sessions that match your recording rules.
How do I install it?
Add the RUM SDK to your site using the CDN snippet or the @siteqwality/rum package, then initialize it with your application ID and client token. Review your consent and capture settings before collecting visitor data.