Some users opt to download a Chrome Extension version of Cookie Clicker. While extensions are often easier to block by administrators, if you have a personal device on a restricted Wi-Fi network, the extension version can sometimes bypass website-specific filters.
Many tech-savvy students and developers create mirror versions of popular games and host them on Google Sites. Because Google Sites is a legitimate productivity tool used for education and business, most network firewalls (including GoGuardian, Lightspeed, and Securly) do not block it by default.