diff --git a/source/index.ts b/source/index.ts
index 8e242f3..31fdc6d 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -190,7 +190,7 @@ namespace is { // tslint:disable-line:no-namespace
 	export const directInstanceOf = <T>(instance: unknown, klass: Class<T>): instance is T => Object.getPrototypeOf(instance) === klass.prototype;
 	export const urlInstance = (value: unknown): value is URL => isObjectOfType<URL>(TypeName.URL)(value);
 
-	export const url = (value: unknown) => {
+	export const urlString = (value: unknown) => {
 		if (!string(value)) {
 			return false;
 		}
diff --git a/source/tests/test.ts b/source/tests/test.ts
index 4244fe0..00fef41 100644
--- a/source/tests/test.ts
+++ b/source/tests/test.ts
@@ -583,13 +583,13 @@ test('is.urlInstance', t => {
 	t.false(is.urlInstance(null));
 });
 
-test('is.url', t => {
+test('is.urlString', t => {
 	const url = 'https://example.com';
-	t.true(is.url(url));
-	t.false(is.url(new URL(url)));
-	t.false(is.url({}));
-	t.false(is.url(undefined));
-	t.false(is.url(null));
+	t.true(is.urlString(url));
+	t.false(is.urlString(new URL(url)));
+	t.false(is.urlString({}));
+	t.false(is.urlString(undefined));
+	t.false(is.urlString(null));
 });
 
 test('is.truthy', t => {