Websites that act as a middleman to bypass filters.
Web proxies act as a middleman. You type diep.io into the proxy website, and the proxy fetches the game content for you. The firewall only sees that you are visiting the proxy site, not the game itself. Use Google Translate as a Proxy Go to Google Translate. Type https://diep.io into the text box. Click the generated link in the translation box. diepio unblocked games link
If the official site is restricted, you can try these verified methods to bypass filters: io games unblocked - diep.io Websites that act as a middleman to bypass filters