W3C provides various free validation services that help check the conformance of Web sites against open standards.
- Category
- Operator
- World Wide Web Consortium (W3C)
- AccessIndicates who drives the bot's activity. Bots with "direct" access are controlled directly by their operator, while bots with "intermediary" access can be controlled by end users.
- Direct
- Documentation
- https://validator.w3.org/services