.invalid

String Information
A-label ASCII form of the domain name, which is used internally in the DNS to represent this domain using the IDNA protocol
invalid
Category Classification based on purpose and governing global allocation policy
Special-use top-level domain
Script The writing system (script) used for this domain label
Latin Latn
Status The current delegation status of the string
Reserved
Technical Status
Not delegated
Remarks
The .invalid top-level domain is reserved for cases where a domain is purposely not meant to resolve. It's often used in technical documentation, testing, or error handling to signal a non-functional or deliberately bogus address.

For further information, see Special-Use Domain Names (RFC 6761) and Reserved Top Level DNS Names (RFC 2606).