Make the web faster

Analysis Options: Testing in Vancouver, Canada using Chrome (Desktop) with an Unthrottled Connection. Log in to lớn change options

879,169,395 pages analyzed so far

Join thousands of people & companies around the world committed to making the website consistently fast.

Make sure your site is fast for everybody

test your page in different countries, browsers, connection speeds and more

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Wondering why your page is slow?

We"ll breakdown your page performance in a summarized report.

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What else can vày for you?

Waterfall, đoạn clip and History Tabs

Additional tabs give you information on your page load breakdown và the ability khổng lồ capture và see how your site actually loads. Graphs give you a historical view of your site's performance over time.

Performance/Structure Tabs

We break down your page's performance in terms of speed (user-perceived experience) and Structure (front-end code), itemizing a danh mục of actionable optimizations and prioritized by how much they affect your page speed.

Web Vitals

Get the metrics that matter the most at a glance - Largest Contentful Paint, Total Blocking Time & Cumulative Layout Shift give you a high-level pulse of your page's performance.

"> Grade & Performance/Structure Scores

Get a cumulative benchmark of your page performance with our Grade - an overall assessment based on your site's Performance Score (how fast your page performs for users) và Structure Score (how well it's built for performance), powered by Lighthouse and

Various thử nghiệm Formats

Test your site from 22 different chạy thử Locations and Analysis Options khổng lồ give you deeper insights on your page performance. Upgrade to lớn PRO to lớn access sản phẩm điện thoại testing, 15 additional regions và Advanced PRO Options.

Summary Tab

Get a high-level overview of your page's performance and nội dung breakdown, along with đứng top optimizations khổng lồ focus on first.


Track your performance over time

We"ll thử nghiệm your page on a schedule and keep track of how it"s doing.

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Learn why monitoring is important

Get notified when your page is slow

set up an alert & get notified when your page underperforms. We"ll send you an alert linked to lớn a full report so you can know what happened.


See how your page loads on different devices

Test your page on a real app android device or on over 30 different Simulated Device options.

Analyze your performance with iPhones, iPads, Samsung Galaxy/Note, Google Nexus/Pixel phones, & other popular devices.

Mobile Testing only available with PRO.


How does your page perform around the world?

See how your page performs in 22 different global demo locations & make sure it loads fast for all your visitors worldwide.

Premium demo Locations only available with PRO.

See all our global demo locations

Analyze your site now và see how well it performs!

Take advantage of all the features has khổng lồ offer & make your site the fastest it can be!

Try it for FREE!

Need lớn use in a professional capacity? kiểm tra out PRO!

About was developed by Carbon60 as a tool for customers to lớn easily test the performance of their webpages. Learn more.

Want to lớn work with us? check out our Careers page.

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