Notice anything different? WebPageTest got all spiffed up. Read more about the changes and what's coming next!
Instantly test your site’s performance in real browsers, devices, and locations around the world.
Chrome-specific advanced settings:
Enter Script
Block Requests Containing (URL substrings)... Space-separated list
Block Domains (full host names)... Space-separated list of domains
Simulate failure of specified domains. This is done by re-routing all requests for the domains to blackhole.webpagetest.org which will silently drop all requests.
Hosts to fail (one host per line)...
Custom Metrics:
Virginia - EC2Salt Lake City, Utah - GCECalifornia - EC2Toronto, Canada - EC2Sao Paulo, Brazil - EC2Ireland - EC2London, UK - EC2Paris - EC2Amsterdam, NL - GCEFrankfurt, Germany - EC2Milan, Italy - EC2Stockholm, Sweden - EC2Cape Town, South Africa - EC2Bahrain - EC2Dubai, UAE - AzureMumbai, India - EC2Bangkok, Thailand - TencentSingapore - EC2Jakarta, Indonesia - GCEHong Kong, China - EC2Shanghai, China - TencentBeijing, China - EC2Beijing, China - TencentNingxia, China - EC2Taiwan - GCESeoul, Korea - EC2Tokyo, Japan - EC2Osaka, Japan - EC2Sydney, Australia - EC2Melbourne, Australia - AzureLos Angeles, CA - M1 Mac Mini/iOS (Chrome,Firefox,Safari)New York, NY - M1 Mac Mini/iOS (Chrome,Firefox,Safari)New York, NY - Android DevicesDulles, VA - Android Devices
Test your user’s real experience with global locations, modern devices, and the latest browser versions.
Correlate your user’s visual experience to the technical measurements of your site.
Dive into the anatomy of your webpage with components like DNS, TCP, TLS, and more.
“The best professional web performance investigators I know use WPT as a critical part of their workflows, and it's the center of mine.”
Learn why packet-level throttling is better than DevTools throttling and the gold standard in accuracy for WebPerf measurements.
Chris Coyier takes the API out for a spin and shares where he sees the most promise for developers
How to use WebPageTest's render-blocking indicator to improve on one of the most common performance bottlenecks.