Platform WebPageTest
For Enterprise:Internet Performance Monitoring
By Team
By Use Case
Find us on...
WebPageTest. The gold standard in web performance testing.
Online CourseLearn to analyze performance, fix issues, and deliver fast websites from the start.
New in WebPageTest! Measure your site's carbon footprint and run No-Code Experiments to find ways to improve.
All of the WebPageTest features you already love, plus API Access & No-Code Experiments!
Enter Script (or read it from a text file). Lighthouse does not perform per step reports for custom scripting, but will run a report on the final step
Block Requests Containing (URL substrings)... Space-separated list (type in or read from a text file)
Block Domains (full host names)... Space-separated list of domains (type in or read from a text file)
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)... Type in or read from a text file
Custom Metrics: Type in or read from a text file
List of URLs to test (one URL per line)... Type in or read from a text file
Virginia
“The best professional web performance investigators I know use WPT as a critical part of their workflows, and it's the center or mine.”
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.