# What is a Badge

- [Definition](/what-is-a-badge/definition.md): Web3 certificates
- [Badge history](/what-is-a-badge/badge-history.md): Badge registry
- [Badge Categories](/what-is-a-badge/badge-categories.md)
- [Community Badges](/what-is-a-badge/badge-categories/community-badges.md): Badges verified by the community
- [Third-party Badges](/what-is-a-badge/badge-categories/third-party-badges.md): Blockchain certifications as a service