Nothing ruins a visitor’s day faster than getting trapped in a "Security...

https://www.bookmarkingqueen.win/stuck-on-the-verify-you-re-not-a-robot-screen-that-endless-loading-loop

Nothing ruins a visitor’s day faster than getting trapped in a "Security Verification" loop. If your site is stuck on "Loading..." while trying to "verify you're not a robot," you are likely hitting your free quota limits