Hi there,
For the issue with generating Critical CSS in Jetpack Boost, a few common troubleshooting steps can help us identify and solve the problem:
- Ensure that your site’s URL is publicly accessible and not blocked by a maintenance mode, a coming soon plugin.
- Make sure that your site is loading only over HTTPS or HTTP, but not both.
- Try temporarily deactivating other plugins and switching to a default WordPress theme (like Twenty Twenty-One) to rule out conflicts.
- Make sure your WordPress and all plugins are updated to their latest versions.
Could you please post your site URL here so that we can have a look?
If you want it to remain private, you can also contact us via contact form. If you choose to reach out directly, please include a link to this thread.
Thank you!