LCP
Largest Contentful Paint
Measures loading performance. Target under 2.5 seconds.
Powered by Google Lighthouse
Monitor Lighthouse scores & Core Web Vitals over time
LM is a performance monitoring dashboard that runs automated Google Lighthouse audits every 24 hours, tracks Performance, Accessibility, SEO, and Best Practices scores, and visualizes Core Web Vitals trends so your team can ship fast, accessible websites with confidence.
Free to useNo credit card requiredUnlimited sites
The metrics that matter
Track the Core Web Vitals Google uses to rank your site
Google uses Core Web Vitals as a ranking signal. LM tracks every metric from each Lighthouse audit so you can identify regressions before they impact your search rankings or user experience.
FCP
First Contentful Paint
Time until the first text or image is rendered on screen.
TBT
Total Blocking Time
Sum of blocking time between FCP and Time to Interactive.
CLS
Cumulative Layout Shift
Measures visual stability. Target a score below 0.1.
Everything you need
A complete Lighthouse monitoring toolkit for developers
From automated scheduling to interactive trend charts, LM gives you the visibility you need to maintain fast, accessible, and SEO-friendly websites.
Automated Daily Lighthouse Audits
Schedule recurring performance audits every 24 hours across all your tracked URLs. LM runs Google Lighthouse against each site automatically, so you receive fresh scores for Performance, Accessibility, SEO, and Best Practices without manual intervention.
Historical Performance Trend Charts
Visualize how your Lighthouse scores and Core Web Vitals evolve over days, weeks, and months. Interactive line charts reveal regressions, improvements, and long-term patterns that one-off audits miss entirely.
Multi-Site Performance Monitoring
Add and track as many URLs as you need from a single dashboard. Each website receives its own dedicated metric history, score gauges, and Core Web Vitals breakdown so you can manage an entire portfolio at a glance.
On-Demand Lighthouse Scans
Trigger a manual Lighthouse audit anytime with one click. Verify that a deployment improved page speed, confirm an accessibility fix, or check SEO scores immediately after pushing changes to production.
Secure Data with Row-Level Security
Every account is protected by Supabase row-level security policies. Your Lighthouse reports, site configurations, and performance history are accessible only to you, ensuring complete data privacy.
Core Web Vitals Dashboard
Dedicated tracking for the metrics Google uses to evaluate page experience: Largest Contentful Paint, First Contentful Paint, Total Blocking Time, and Cumulative Layout Shift, with per-metric trend lines.
Get started in minutes
How LM Lighthouse monitoring works
Three steps to continuous performance insight. No complex setup, no infrastructure to maintain.
Create your free account
Sign up with your email and password. Your account is protected by enterprise-grade authentication.
Add the URLs you want to monitor
Enter any public website URL. LM accepts marketing sites, web apps, e-commerce stores, blogs, and more.
Get automated Lighthouse reports
LM runs daily audits at 3 AM UTC and stores every result. View trend charts, compare scores, and trigger on-demand scans anytime.
Built for web professionals
Who uses LM for performance monitoring?
Frontend Engineers
Verify that every deploy maintains or improves Lighthouse scores. Catch performance regressions from new bundles, images, or third-party scripts.
SEO & Marketing Teams
Monitor the page-experience signals Google uses for search rankings. Track accessibility and SEO scores alongside Core Web Vitals.
Engineering Managers
Get a portfolio-wide view of web performance across every site your team maintains. Spot trends and allocate resources where they matter most.
Start monitoring your Lighthouse scores today
Create a free account, add your URLs, and let LM deliver automated daily Lighthouse audits with historical trend analysis. No credit card, no setup complexity.