Website performance monitoring that catches slowdowns before Google does
Uptura tracks Core Web Vitals — LCP, CLS, and INP — on every page from a real browser, and alerts your team the moment a deploy pushes performance past a healthy threshold. No more finding out from a ranking drop.
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Field data · mobile · 28d
Why it matters
Slow pages cost rankings and revenue — quietly
Performance rarely breaks all at once. It drifts, one deploy at a time, until a page fails Core Web Vitals and search traffic slips. Continuous website performance monitoring catches the regression the day it ships, not the quarter it costs you.
Rankings
ride on page speed
Core Web Vitals are part of Google's page experience signals. A slow LCP or shifting layout can quietly hold a page back in search.
One deploy
can undo months of work
A single heavy script or unsized image ships, and performance regresses. Without monitoring, nobody notices until traffic dips.
Real users
feel what tests miss
A one-off lab test looks fine while real visitors on real phones struggle. Field data is what Google measures — and what you should too.
What we measure
Everything a website performance monitoring tool should do
Uptura tracks the Core Web Vitals Google ranks on, the load-time metrics behind them, and the regressions that quietly ship — from real browsers on both mobile and desktop.
LCP, CLS & INP tracking
Track the three Core Web Vitals — Largest Contentful Paint, Cumulative Layout Shift, and Interaction to Next Paint — for every page, scored against Google's own good / needs-improvement / poor thresholds.
Real-user & lab data
See field data from actual visitors alongside lab measurements from a controlled browser, so you catch both the slowdowns your users feel and the ones a single test would miss.
Regression alerts on every deploy
Uptura remembers each page's baseline and alerts you the moment a release pushes LCP, CLS, or INP past threshold — so a heavy new script never quietly tanks your speed.
Mobile & desktop, side by side
Google ranks on mobile performance, but your team browses on desktop. Uptura measures both form factors separately so a fast desktop never hides a slow phone experience.
Page load & speed metrics
Go beyond the headline score with TTFB, First Contentful Paint, total page weight, and full load time — the website performance metrics that explain why a page is slow.
Historical trends & reports
Watch performance move over weeks, not just today. Share client-ready reports that prove a site is getting faster — or flag where it's drifting the wrong way.
How it works
Add a page, watch its vitals over time
Core Web Vitals monitoring should take a minute to set up. Point Uptura at your pages and it measures and tracks them from there.
- 1
Add the pages that matter
Point Uptura at your homepage, product pages, and any route where speed drives revenue. No agents or code changes needed to get a baseline.
- 2
We measure like a real browser
Uptura loads each page on a schedule from a real browser on mobile and desktop, capturing Core Web Vitals plus the load-time metrics behind them.
- 3
You get alerted when a vital regresses
When a deploy or a third-party script pushes LCP, CLS, or INP past a healthy threshold, your team is notified — with the page and the offending metric attached.
One platform
Core Web Vitals are just one signal Uptura watches
A page can be fast while its certificate is expiring, its DNS is wrong, or its checkout is broken. Uptura pairs Core Web Vitals monitoring with uptime, SSL, DNS, SEO, accessibility, and more — so every part of a website's health lives in one dashboard and one alert stream.
Uptime Monitoring
Minute-by-minute checks from multiple regions catch outages the instant they happen — before your customers do.
SSL & Domain
Track SSL certificate, issuer, and domain expiry across every site, with alerts well before anything lapses.
DNS Monitoring
Watch DNS records for unexpected changes, misconfigurations, and propagation issues in real time.
API & Endpoint
Test REST endpoints for status codes, latency, and JSON validity — and watch business-critical endpoints separately.
SEO Monitoring
Catch metadata, canonical, robots.txt, and sitemap regressions that quietly tank rankings — the moment they ship.
Synthetic & Forms
Run scripted checks on logins, checkouts, and contact forms so broken user journeys never go unnoticed.
Visual RegressionSoon
Capture daily screenshots and highlight visual differences between deployments before anyone else spots them.
Accessibility
Continuous WCAG and Axe scans with historical reports, so accessibility regressions get caught — not shipped.
Plus everything else that keeps a website healthy
- Domain & WHOIS monitoring
- robots.txt monitoring
- Sitemap monitoring
- Broken link scanner
- Lighthouse scans
- Screenshot diffing
- Deployment comparison
- Email, Slack & Discord alerts
- Daily digests & PDF reports
FAQ
Core Web Vitals monitoring, answered
What is Core Web Vitals monitoring?
Core Web Vitals monitoring is the practice of continuously measuring the three metrics Google uses to score page experience — Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP) — and alerting you when a page slips past a healthy threshold. Unlike a one-off speed test, monitoring catches slowdowns that creep in after a deploy or a new third-party script.
What are good Core Web Vitals scores?
Google considers a page 'good' when LCP is 2.5 seconds or faster, CLS is 0.1 or lower, and INP is 200 milliseconds or faster — measured at the 75th percentile of real visits. Uptura scores every page against these exact thresholds so you always know which pages pass and which need work.
How do I check or test my Core Web Vitals?
You can run a one-off Core Web Vitals test with tools like PageSpeed Insights, but a single test only shows this moment. Uptura runs the check continuously on a schedule from a real browser, keeps the history, and tells you the instant a score regresses — so you're not re-testing by hand after every release.
What's the difference between lab and field (real-user) data?
Lab data comes from a controlled test in a single environment and is great for debugging. Field data — sometimes called real-user monitoring, or RUM — reflects what your actual visitors experience across their devices and networks, which is what Google uses for ranking. Uptura shows both so you can debug in the lab and validate in the field.
Do Core Web Vitals affect SEO and Google rankings?
Yes. Core Web Vitals are part of Google's page experience signals, so poor LCP, CLS, or INP can hold a page back — especially on mobile, where Google ranks first. Monitoring them means a performance regression never quietly costs you rankings. Uptura pairs Core Web Vitals monitoring with SEO monitoring so content and speed issues surface in the same place.
Is there a free website performance monitoring tool?
Free tools like PageSpeed Insights give you a snapshot, but continuous monitoring, history, and regression alerts are what stop slow pages before they ship. Uptura is launching Core Web Vitals and website performance monitoring as part of a complete website operations platform — join the waitlist for early access and founding-user pricing.
Catch the slowdown before your rankings do
Join the Uptura waitlist for early access to Core Web Vitals and website performance monitoring — and the rest of the website operations platform — plus founding-user pricing.
Be the first to know when we launch. No spam, ever.