More accurately, it traps any web crawler, including regular search engines and benign projects like the Internet Archive. This should not be used without an allowlist for known trusted crawlers at least.

Annoyingly, it initially seemed to work well on my iPad (only lacking right-click support, which upped the difficulty nicely), but now it only shows the multicolored loading screen forever. Not a cookie thing either, since it does the same thing in a private tab.