In 2021, many schools and workplaces tightened their web filters, blocking popular gaming sites like Coolmath Games, Armor Games, or Crazy Games. The term meant the game was hosted on a mirror site that bypassed these content filters—often using HTTPS, odd domain names, or simple, non-blacklisted URLs.
Technically, many of the original 2021 unblocked sites have gone offline or updated to newer versions. However, due to the nature of "unblocked" games, archived or re-uploaded versions can still be found. As of 2026, most modern browsers may block Flash or old JavaScript builds, but HTML5 versions remain playable. ragdoll archers unblocked 2021 free