Every millisecond impacts your conversion rates, SEO visibility, and the overall experience delivered to your users. But beyond this well-known fact, the same questions keep coming up: how can you tell if your site is truly high-performing? How do you compare with your competitors? And most importantly, are you meeting the standards of your industry?
There’s no shortage of tools, but most face the same challenges: complex technical data that’s difficult to interpret, a lack of industry-specific benchmarks; static test results that don’t always reflect your users’ real experience.
The result? Digital teams struggle to rely on clear, actionable metrics to convince stakeholders and prioritise improvements.
That’s exactly why we’re launching our brand-new online simulator.
A free, instant performance check
This free tool allows you to test your website and receive, in just a few seconds, a clear, comprehensive, and shareable performance report.
Most importantly, it shows how you stack up against your industry and direct competitors.
START your free diagnostic now
Is your site truly performant?
Find out in just one click with the online simulator. It helps you:
Measure your real user performance
Benchmark your site against your industry
Receive personalised recommendations
Analyse your performance trends over the past 6 months
Compare yourself with your direct competitors
Easily share the report with your colleagues via a simple link
Your complete diagnostic in seconds
With a single click, you’ll get an in-depth view of your website’s performance, far beyond a basic score.
1. Expert recommendations
Each result is accompanied by comments and tailored advice from web performance specialists.
2. Competitive ranking
The simulator positions your site in relation to your competitors: are you leading, keeping pace, or lagging behind?
3. Industry benchmark
For over a decade, Fasterize has monitored the performance of thousands of URLs across sectors such as retail, travel, media, banking & insurance, and luxury.
The simulator allows you to compare your results to the median performance in your sector, a crucial benchmark to assess whether you’re aligned with market expectations.
4. 6-month performance trends
Performance is never static, it evolves with deployments, campaigns, and traffic peaks.
The simulator provides a retrospective view covering the past 6 months, helping you identify progress, stagnation, or areas requiring attention.
5. A shareable report
All the insights are presented in a simple, accessible format, ready to be shared across your teams.
It’s a powerful way to raise internal awareness and ensure that performance becomes a strategic priority.
The performance experience index: A trusted benchmark for over 10 years
The PX Index isn’t new. For over a decade, we’ve used it in our monthly web performance rankings, published on our blog.
It’s become a recognised benchmark for comparing the performance of thousands of websites across all industries.
Now, thanks to the simulator, this score is accessible to everyone: measure your site and see how it compares.
A proven methodology
To best assess mobile web performance, we base our scoring on Lighthouse’s weighting:
FCP: 10%
LCP: 35%
CLS: 25%
INP: 30%
The CrUX dataset offers a comprehensive overview of Core Web Vitals for each site analysed, based on a rolling 28-day average at the 75th percentile.
The global performance score is then calculated using a weighted average of the four metrics, rated out of 100, this is the score used in our rankings.
At Fasterize, we’ve made a clear choice: to rely exclusively on real-user data.
That’s the foundation of the PX Index.
A tool for all teams
The power of the simulator lies in its ability to translate complex data into a common language, making it accessible across marketing, digital, and leadership teams.
It offers a clear snapshot of your website’s performance and digital competitiveness.
The report is a straightforward, actionable resource to support internal discussions and highlight your key priorities, based on measurable, comparative insights.
Start your diagnostic
In just a few seconds, discover where you stand, how you compare with your competitors and industry, and what concrete steps will help you improve.
With the Fasterize simulator, you get a full, objective, and actionable view of your website’s performance, all in just one click.
