Analyzing neglected CSS in intricate websites

While there are tools available to identify unused CSS on static web pages, real-world scenarios often involve CSS being used dynamically after interactions such as opening modals or popups. How can we effectively manage our ever-growing render-blocking CSS in these cases?

One approach could be to utilize unused-CSS-detector tools in combination with Selenium to test various interactions and determine what CSS is left unused. However, this method relies on knowing all possible interactions that may require new CSS. Is there a way to address this issue without making such assumptions?

In an ideal scenario, it would be helpful to track all CSS used by a visitor's browser on the page and send this data back to a server for analysis over time. By aggregating this information, we could gain insights into the actual usage of CSS on our site.

Do you have any innovative suggestions to tackle this challenge?

Answer №1

As the creator of a revolutionary tool, my mission is to tackle the very issue you've outlined. In all my experiences, CSS has been treated as an "append-only" codebase that becomes too cumbersome and risky to clean up. Despite efforts, the return on investment for such cleanup projects remains discouragingly low.

That's why I've embarked on creating a tool akin to your vision. Its purpose is to instill confidence in identifying unnecessary code and automatically generating pull requests to remove them.

A JavaScript snippet runs in the browser, sending usage reports to a server. Once enough data is gathered to establish a level of certainty, the tool can autonomously kick off Pull Requests to eliminate unused selectors.

While still in its early phases, I invite you to test it out and provide valuable feedback.

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