Suggest an alternative to

penthouse

Generate critical css for your web pages

Why do you think that https://github.com/tobiasahlin/SpinKit is a good alternative to penthouse

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with penthouse. Optional.

A valid email to send you a verification link when necessary or log in.