---
title: url
---

# url

<a href="https://github.com/remix-run/remix/blob/remix@3.0.0-alpha.6/packages/data-schema/src/lib/checks.ts#L57" target="_blank">View Source</a>

## Summary

Require a string to be a valid URL.

## Signature

```ts
function url(): Check<string>;

```

## Returns

A [`Check`](/api/remix/data-schema/type/Check/) that validates URL-like strings