---
title: referenceURL
framework: uniformtypeidentifiers
role: symbol
role_heading: Instance Property
path: uniformtypeidentifiers/uttype-swift.struct/referenceurl
---

# referenceURL

The reference URL for the type.

## Declaration

```swift
var referenceURL: URL? { get }
```

## Discussion

Discussion A reference URL is a human-readable document that describes a type. Most types don’t specify reference URLs. warning: The system doesn’t validate the URL, nor does it guarantee its scheme or structure.

## See Also

### Obtaining additional type information

- [isDeclared](uniformtypeidentifiers/uttype-swift.struct/isdeclared.md)
- [isDynamic](uniformtypeidentifiers/uttype-swift.struct/isdynamic.md)
- [isPublic](uniformtypeidentifiers/uttype-swift.struct/ispublic.md)
- [version](uniformtypeidentifiers/uttype-swift.struct/version.md)