Reports Tech Report
Track and compare web technology performance and adoption. Real-world Core Web Vitals performance data is provided by the Chrome UX Report at the origin level, and technologies are identified by HTTP Archive on the home page and one interior page.
Technology Drilldown
Get detailed information about one technology.
Technology Comparison
Get detailed information about two to ten technologies.
Category info
Get detailed information about a category and its technologies.
A note of caution
Web performance is based on a large number of factors and correlation does not equal causation. A technology being highly correlated with good (or poor) performance does not necessarily indicate that technology is the cause of that performance. Those technologies may be used on simpler or more complex sites, or in popular third-party components that may be more or less performant. We hope this data serves as an interesting jumping off point for delving into, and discussing, why the stats are the way they are rather than as a definitve grading of the technology.
Feedback?
Please raise a GitHub issue if you spot any problems, or for any feature requests.