diff --git a/index.d.ts b/index.d.ts
index cdb7b34..cf25d4a 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -15,8 +15,20 @@ isAbsoluteUrl('//sindresorhus.com');
 
 isAbsoluteUrl('foo/bar');
 //=> false
+
+isAbsoluteUrl('file://sindresorhus.com', {httpOnly: false});
+//=> true
 ```
 */
-declare function isAbsoluteUrl(url: string): boolean;
+interface Options {
+	/**
+	Check if it's an absolute HTTP URL
+
+	@default true
+	*/
+	readonly httpOnly?: boolean;
+}
+
+declare function isAbsoluteUrl(url: string, httpOnly?: Options): boolean;
 
 export = isAbsoluteUrl;
diff --git a/index.js b/index.js
index 25dca66..027b3b1 100644
--- a/index.js
+++ b/index.js
@@ -1,10 +1,14 @@
 'use strict';
 
-module.exports = url => {
+module.exports = (url, options = {httpOnly: true}) => {
 	if (typeof url !== 'string') {
 		throw new TypeError(`Expected a \`string\`, got \`${typeof url}\``);
 	}
 
+	if (options.httpOnly) {
+		return /^((http[s]?)?:\/\/([-a-z0-9()@:%_.~#?&//=]*))/gi.test(url);
+	}
+
 	// Don't match Windows paths `c:\`
 	if (/^[a-zA-Z]:\\/.test(url)) {
 		return false;
diff --git a/index.test-d.ts b/index.test-d.ts
index 6ad483a..74146e4 100644
--- a/index.test-d.ts
+++ b/index.test-d.ts
@@ -1,4 +1,4 @@
 import {expectType} from 'tsd';
 import isAbsoluteUrl = require('.');
 
-expectType<boolean>(isAbsoluteUrl('https://sindresorhus.com/foo/bar'));
+expectType<boolean>(isAbsoluteUrl('https://sindresorhus.com/foo/bar', {httpOnly: true}));
diff --git a/readme.md b/readme.md
index 17b3525..f1fd05d 100644
--- a/readme.md
+++ b/readme.md
@@ -25,6 +25,26 @@ isAbsoluteUrl('foo/bar');
 //=> false
 ```
 
+### Options
+
+#### httpOnly
+
+Type: `boolean`\
+Default: `true`
+
+Only accept absolute HTTP URLs.
+
+```js
+isAbsoluteUrl('https://si', {httpOnly: true});
+//=> true
+
+isAbsoluteUrl('mailto:someone@example.com', {httpOnly: false});
+//=> true
+
+isAbsoluteUrl('data:text/plain;base64,SGV', {httpOnly: false});
+//=> true
+```
+
 
 ## Related
 
diff --git a/test.js b/test.js
index f68537b..f321ee3 100644
--- a/test.js
+++ b/test.js
@@ -5,9 +5,9 @@ test('main', t => {
 	t.true(isAbsoluteUrl('http://sindresorhus.com'));
 	t.true(isAbsoluteUrl('https://sindresorhus.com'));
 	t.true(isAbsoluteUrl('httpS://sindresorhus.com'));
-	t.true(isAbsoluteUrl('file://sindresorhus.com'));
-	t.true(isAbsoluteUrl('mailto:someone@example.com'));
-	t.true(isAbsoluteUrl('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D'));
+	t.false(isAbsoluteUrl('file://sindresorhus.com'));
+	t.false(isAbsoluteUrl('mailto:someone@example.com'));
+	t.false(isAbsoluteUrl('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D'));
 	t.false(isAbsoluteUrl('//sindresorhus.com'));
 	t.false(isAbsoluteUrl('/foo/bar'));
 	t.false(isAbsoluteUrl('foo/bar'));
@@ -17,3 +17,60 @@ test('main', t => {
 	t.false(isAbsoluteUrl('C:\\Dev\\test-broken'));
 	t.false(isAbsoluteUrl('ht,tp://sindresorhus.com'));
 });
+
+test('options => {httpOnly: true}. Assert true', t => {
+	t.true(isAbsoluteUrl('http://sindresorhus.com', {httpOnly: true}));
+	t.true(isAbsoluteUrl('https://sindresorhus.com', {httpOnly: true}));
+	t.true(isAbsoluteUrl('httpS://sindresorhus.com', {httpOnly: true}));
+	t.true(isAbsoluteUrl('https://www.sindresorhus.com', {httpOnly: true}));
+	t.true(isAbsoluteUrl('https://www.sindres.orhus.com/path', {httpOnly: true}));
+	t.true(isAbsoluteUrl('httpS://www.sindresorhus.com', {httpOnly: true}));
+	t.true(isAbsoluteUrl('https://sindresorhus', {httpOnly: true}));
+	t.true(isAbsoluteUrl('httpS://localhost:8000', {httpOnly: true}));
+	t.true(isAbsoluteUrl('http://localhost', {httpOnly: true}));
+	t.true(isAbsoluteUrl('http://sin dresorhus.com', {httpOnly: true}));
+});
+
+test('options => {httpOnly: true}. Assert false', t => {
+	t.false(isAbsoluteUrl('yhttp://sindresorhus.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('file://sindresorhus.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('mailto:someone@example.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D', {httpOnly: true}));
+	t.false(isAbsoluteUrl('ht,tp://sindresorhus.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('//sindresorhus.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('/foo/bar', {httpOnly: true}));
+	t.false(isAbsoluteUrl('foo/bar', {httpOnly: true}));
+	t.false(isAbsoluteUrl('foo', {httpOnly: true}));
+	t.false(isAbsoluteUrl('c:\\', {httpOnly: true}));
+	t.false(isAbsoluteUrl('c:\\Dev\\test-broken', {httpOnly: true}));
+	t.false(isAbsoluteUrl('C:\\Dev\\test-broken', {httpOnly: true}));
+	t.false(isAbsoluteUrl('h t,tp://sindresorhus.com', {httpOnly: true}));
+	t.false(isAbsoluteUrl('javascript:throw%20document.cookie', {httpOnly: true}));
+});
+
+test('options => {httpOnly: false}. Assert true', t => {
+	t.true(isAbsoluteUrl('http://sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('https://sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('httpS://sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('file://sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('mailto:someone@example.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D', {httpOnly: false}));
+	t.true(isAbsoluteUrl('https://www.sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('https://www.sindres.orhus.com/path', {httpOnly: false}));
+	t.true(isAbsoluteUrl('httpS://www.sindresorhus.com', {httpOnly: false}));
+	t.true(isAbsoluteUrl('javascript:throw%20document.cookie', {httpOnly: false}));
+	t.true(isAbsoluteUrl('https://sindresorhus', {httpOnly: false}));
+	t.true(isAbsoluteUrl('http://sindr esorhus.com', {httpOnly: false}));
+});
+
+test('options => {httpOnly: false}. Assert false', t => {
+	t.false(isAbsoluteUrl('ht,tp://sindresorhus.com', {httpOnly: false}));
+	t.false(isAbsoluteUrl('//sindresorhus.com', {httpOnly: false}));
+	t.false(isAbsoluteUrl('/foo/bar', {httpOnly: false}));
+	t.false(isAbsoluteUrl('foo/bar', {httpOnly: false}));
+	t.false(isAbsoluteUrl('foo', {httpOnly: false}));
+	t.false(isAbsoluteUrl('c:\\', {httpOnly: false}));
+	t.false(isAbsoluteUrl('c:\\Dev\\test-broken', {httpOnly: false}));
+	t.false(isAbsoluteUrl('C:\\Dev\\test-broken', {httpOnly: false}));
+	t.false(isAbsoluteUrl('ht,tp://sindresorhus.com', {httpOnly: false}));
+});