The website appears to contain JavaScript code related to performance measurement and optimization. It includes functions like 'noop' for no operation, 'datenow' for retrieving the current timestamp, and 'performancetiming' for measuring performance. There are also references to handling errors and returning primitive values.
Additionally, there is mention of different browser compatibility, polyfills, and a promise-based approach. The site may be focused on providing tools or resources related to improving website performance across various browsers.
