Monitor Page Speed and Core Web Vitals

Optimize web performance to improve user experience and Google rankings.

Front-end web performance monitoring dashboard

Website performance monitoring dashboard with Google CrUX metrics

Website performance monitoring dashboard with real user data

”We've updated around 15,000 pages and saw some nice gains from it. "Good URLs" and their impressions have increased 3x since implementation.“

Rafayel Begoyan

Senior SEO Specialist

”DebugBear has been an eye opener for us and has really shown what's causing the Core Web Vitals issues on our website.

Mandip Ahdan

Head of Engineering

We help startups, agencies, and enterprises keep their website fast

Be faster than your competition

1. Identify slow pages

Discover where visitors have poor experiences, with real user analytics or our website scan.

2. Diagnose performance bottlenecks

Fix performance issues with detailed technical reporting.

3. Monitor page speed continuously

Confirm your optimizations are working and get alerted if performance gets worse.

Comprehensive website performance monitoring

Synthetic monitoring

Run scheduled lab tests and keep track of Google Lighthouse scores.

Real user monitoring (RUM)

Track actual user experience across your website in real time.

Google CrUX data

Monitor visitor data from Google's Chrome User Experience Report (CrUX).

Identify web performance issues

Measure visitor experience across your website

Real user monitoring provides real-time insights into how fast your website is and where you need to optimize.

Set up scheduled tests

Continuously run synthetic tests for deeper insights and alerting.

Build custom dashboards

Set up reports that provide the metrics and debug data that matter to each team in your organization.

Page speed dashboard showing global performance data

Optimize Core Web Vitals

Understand visitor experience

Learn how your website loads for visitors and how that impacts your Core Web Vitals scores.

Detailed performance recommendations

DebugBear automatically identifies problems on your website and highlights the data you need to fix them.

Run site speed experiments

See the impact of performance optimizations without deploying changes to your website.

In-depth technical analysis

Network request waterfall

Get a detailed report on what's happening on your website. Easily correlate network activity with CPU tasks and rendering progress.

View relevant debug data

When inspecting a performance metric you get a filtered view of the test result highlighting what is impacting the specific metric.

Learn how to improve your website performance

Improve slow interactions

Fix Interaction to Next Paint (INP) Scores

INP is one of the Core Web Vitals metrics that impact SEO. It measures how quickly your website responds to user input.

See what page elements cause slow interactions

DebugBear tracks how often different page elements cause slow interactions. You can also see what led up to the user interaction.

Identify scripts responsible for poor performance

View what specific code is delaying user input, and why this code is running.

Interaction to Next Paint performance insight

Catch and fix regressions

Automatic change notifications

Added a new render-blocking script? Uploaded a 5 MB image? Got a slow server response?

Use our zero-config automatic alerts, or set custom thresholds.

Compare test results

Want to know why your site got slower? Use our in-depth before and after comparison to see exactly what changed.

Communicate with clients and your team

Video export

Demonstrate how visitors experience your website. Generate a side-by-side view with a competitor. Or share a before and after video showing the impact of your work.

Chart annotations

Deployed a new version or added a new third-party? Mark this in your charts to clearly see the performance impact.

Share page speed data

Share test results with a unique link or by exporting data as PDF or CSV. Invite team members and clients to collaborate.

Benchmark within your industry

See how you stack up

Compare your website performance to the competition based on real visitor data by Google.

View long-term trends

Monitor progress over time and see if you're pulling ahead.

Extra insight and segmentation

Explore desktop and mobile data and check additional metrics beyond the Core Web Vitals.

An efficient website optimization workflow

Audits dashboard

See all Lighthouse audit scores and identify the most common issues on your website in the audits dashboard. Check performance, accessibility, and SEO.

AI coding agent prompt for performance optimization

AI agent prompts

Generate ready-to-use prompts for AI coding agents like Claude Code or Cursor. Get specific, actionable fix instructions based on your test results.

API integration

Our API allows you to trigger synthetic tests, access real user monitoring data, or receive webhook alerts when tests finish.

Hear from our users

”The most actionable-info packed page speed visualization available. DebugBear provides unique features that are crucial to debugging complex issues, like request-chain visualization."

Robin Marx

Web Protocol and Performance Expert

”The reporting data is very helpful in pinpointing what causes site speed issues – immediately actionable. It's well above and beyond the info you get from Lighthouse and the performance tests through Chrome.“

Loren McDonald

IT Director

”DebugBear delivers the best stats for before and after changes in exquisite detail. It also shows clear and easy to find data for Google's Web Vitals.

Tony Cosentino

Owner at The WP Guy

”DebugBear's alerts are our early warning system. They catch new scripts that could slow us down before they become a problem.”

Ryan Sullivan

Chief of Staff at SiteCare

”We've used several performance monitoring tools, but DebugBear is our favourite because of its clarity, reliability, and attention to Core Web Vitals . We can easily find synthetic testing and real-user data in one place.

Paul Terry

Head of SEO at Paramount Digital

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