First-party visitors vs lab and public field data
Auditzy™ monitors captured sessions and page views directly on your site. GTmetrix primarily runs controlled browser tests and supplements eligible reports with aggregated CrUX data from Google.
Real User Monitoring vs Lighthouse-Based Testing
Auditzy™ monitors real-user experiences on your site for captured sessions and page views, with context such as device, network speed, device memory (RAM), operating system, browser, location, page, and configured journey. It also helps brands understand how website speed affects configured conversion funnels. GTmetrix runs Lighthouse-powered browser tests for selected URLs and displays aggregated CrUX field data when eligible.
Short Answer
A GTmetrix lab report shows how one selected URL performs under configured test conditions and provides technical artifacts for investigating that run. Its CrUX tab can add a 28-day aggregate of eligible Chrome-user experiences, but it does not expose your first-party sessions, page views, or conversion outcomes. Auditzy™ captures real-user experience data directly from your site, reveals variation across production segments, and connects website-speed differences with configured conversion funnels.
Direct Comparison
The products use different evidence sources and are designed around different performance workflows.
| Evaluation area | Auditzy™ | GTmetrix |
|---|---|---|
| Evidence source | Real-user experience data from captured sessions and page views on your website | Lighthouse-powered browser tests plus aggregated public CrUX data when eligible |
| User representation | Reflects captured visits from your actual users under real production conditions | Represents configured lab scenarios; CrUX adds an aggregate of eligible Chrome-user experiences |
| Collection model | Collected as captured real-user sessions and page views occur | Generated through on-demand or scheduled URL tests; CrUX uses a rolling 28-day dataset |
| Segmentation | Page, device, network speed, device memory (RAM), operating system, browser, location, and configured journey context | Lab results vary by selected test settings; its displayed CrUX data aggregates devices, locations, connections, and Chrome versions |
| Conversion insights | Shows how website-speed differences relate to configured conversion funnels and journey outcomes | Does not collect your first-party session-level conversion-funnel or business-outcome data |
| Diagnostics and monitoring | Identifies affected production pages, page views, user segments, and performance trends | Provides Lighthouse metrics, structure audits, waterfalls, video, page details, history, scheduled tests, and alerts |
| Best suited for | Understanding production reach, prioritizing affected conversion journeys, and validating real-user improvements | Testing selected URLs, diagnosing page-load behavior, and tracking repeatable lab results over time |
Key Differences
Auditzy™ monitors captured sessions and page views directly on your site. GTmetrix primarily runs controlled browser tests and supplements eligible reports with aggregated CrUX data from Google.
Auditzy™ relates website-speed differences to configured conversion funnels and journey outcomes. GTmetrix reports technical performance for selected URLs rather than your first-party conversion population.
Auditzy™ reveals variation by page, device, network speed, memory, operating system, browser, location, and journey. GTmetrix states that its CrUX view aggregates devices, locations, connections, and Chrome versions.
Auditzy™ shows where performance issues occur across captured traffic and which journeys are affected. GTmetrix helps reproduce page behavior using consistent conditions, waterfalls, video, Lighthouse metrics, and scheduled tests.
See Beyond a Page-Test Report
Use Auditzy™ to monitor captured sessions and page views across real-user devices, network speeds, device memory, operating systems, browsers, locations, pages, and configured conversion journeys.
Questions, Answered
GTmetrix displays aggregated Chrome UX Report data when a page or origin is eligible. This is public field data from Google, not a first-party collection of your individual production sessions and page views.
No. Its primary reports come from controlled Lighthouse-powered tests, while its CrUX tab displays aggregated eligible Chrome-user data. It does not expose your individual first-party sessions or page views.
Auditzy™ monitors captured sessions and page views from actual visitors with context including page, device, network speed, device memory, operating system, browser, location, and configured journey. It also connects website-speed differences with configured conversion funnels.
GTmetrix can test and monitor selected URLs, but it does not collect your first-party session-level conversion-funnel outcomes. Auditzy™ is designed to relate real-user website performance to configured conversion journeys.
They use different data sources and time windows. Auditzy™ captures visits across varied production conditions. A GTmetrix lab report reflects its configured test run, while its CrUX section summarizes eligible Chrome-user data over a rolling 28-day period.
Use Auditzy™ to understand real-user performance, affected segments, production reach, and conversion-funnel impact. Use GTmetrix to test selected pages, inspect Lighthouse metrics and waterfalls, and track repeatable lab results. Teams may use both for different stages of diagnosis and validation.
Product capabilities and plans can change. Verify current details against each vendor’s documentation. Third-party product names and trademarks belong to their respective owners. Auditzy™ is not affiliated with or endorsed by the compared vendors unless expressly stated.
See how teams use Auditzy™'s real-user monitoring and AI-powered insights to diagnose performance issues, prioritize fixes, and improve conversions.
The Pant Project
Auditzy™’s real-user monitoring revealed that product pages loaded significantly slower in the Instagram and Facebook in-app browsers. The insights helped the team identify and fix the rendering issues affecting social media visitors.
MG Motors
Auditzy™ helped MG Motors India to identify and fix performance bottlenecks across their website, resulting in a 90% reduction in Largest Contentful Paint (LCP) and a faster experience for their customers.
DaMensch
Auditzy™ helped DaMensch identify and fix performance bottlenecks across their website, resulting in a 2X faster experience for their customers.
See how product, engineering, SEO, and growth teams use Auditzy™’s real-user monitoring and Core Web Vitals insights to prioritize performance fixes, improve conversions, and drive measurable business outcomes.
“Auditzy™'s expertise has significantly improved all our performance metrics, leading to positive business outcomes, something we consider crucial. Their accountability and execution skills are exceptional; it felt as though they were part of my own team. We continue to work with them because I believe they have much more to offer. We highly recommend Auditzy™ for website speed and performance enablement, as well as optimization consultancy.”
“Auditzy™ has been instrumental in helping us optimize performance where it truly matters for real users. As a D2C brand investing heavily in Meta ads, we were losing conversions due to slow load times, especially in in-app browsers. Auditzy™'s real-time Core Web Vitals monitoring gave us unmatched visibility into how speed impacts user journeys. Their insights helped us fix bottlenecks, reduce drop-offs, and significantly improve mobile conversions. With Auditzy™, we're not just faster—we're smarter about how speed drives growth.”
“Auditzy™ has become an indispensable tool for Schbang, serving as our go-to solution for all website performance and speed monitoring needs. It has streamlined how we manage and maintain our clients' website performance under one convenient umbrella.”
“I consider Auditzy™ an asset for dedicated technology business owners seeking to understand website speed and performance, and I cannot thank the team enough for their remarkable support. Auditzy™ provided invaluable recommendations for resolving the issues it identified. As a result, our website now offers a super-fast, seamless browsing experience.”
“With Auditzy™, we're able to consistently deliver top-tier services to our clients and achieve measurable improvements in user experience and Google Search rankings. Auditzy™ is not just a tool; it's a transformative element in our digital strategy toolkit.”
Auditzy™ connects real-user performance to conversion outcomes, then helps your team prioritize the fixes most likely to improve speed, engagement, and revenue.
Typical customer result
Customers typically achieve around 10% conversion growth
Auditzy™ identifies website performance friction, prioritizes the highest-impact fixes, and helps validate the uplift.
Typical growth in conversions
High-intent user journeys
Impact measured with real-user data
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