diff --git a/src/marks/Link.js b/src/marks/Link.js
index 545cf758a92..2fb97b434c0 100644
--- a/src/marks/Link.js
+++ b/src/marks/Link.js
@@ -58,9 +58,13 @@ const Link = TipTapLink.extend({
 
 	renderHTML(options) {
 		const { mark } = options
+		const url = new URL(mark.attrs.href, window.location)
+		const href = PROTOCOLS_TO_LINK_TO.includes(url.protocol)
+			? domHref(mark, this.options.relativePath)
+			: '#'
 		return ['a', {
 			...mark.attrs,
-			href: domHref(mark, this.options.relativePath),
+			href,
 			'data-md-href': mark.attrs.href,
 			rel: 'noopener noreferrer nofollow',
 		}, 0]