> For the complete documentation index, see [llms.txt](https://doc.thebadge.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.thebadge.xyz/what-is-a-badge.md).

# What is a Badge

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