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The website appears to be about JavaScript functions and performance optimization. It mentions various function names like "noop" (no operation), "performancetiming," and "datenow" which are likely related to measuring and managing performance in a browser window. The code also includes references to libraries, image source loading, error handling, promises, browsers detection, and polyfills. Overall, it seems like the site focuses on providing information or resources related to web development and JavaScript programming techniques.