diff --git a/src/index.ts b/src/index.ts
index f9a2b66..e7e30bc 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -31,6 +31,7 @@ const getMeta = ($: cheerio.Root, metaName: string) => {
 const parseUrl = (url?: string, baseUrl?: string) => {
   if (!url) return undefined;
   if (!baseUrl || url.startsWith('http')) return url;
+  if (url.startsWith('//')) return `https:${url}`;
 
   return `${baseUrl}${url}`;
 };
@@ -92,7 +93,7 @@ const getLinkPreview = async (url: string, options?: ILinkPreviewerOptions) => {
       : ('error' as 'error'),
   };
 
-  const response = await fetch(fetchUrl, fetchOptions).catch(e => {
+  const response = await fetch(fetchUrl, fetchOptions).catch((e) => {
     if (e.name === 'AbortError') {
       throw new Error('Request timeout');
     }
diff --git a/test/index.test.ts b/test/index.test.ts
index fea3247..b7869a1 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -3,7 +3,7 @@ import getLinkPreview, { ILinkPreviewInfo } from '../src';
 const youtubeSample: ILinkPreviewInfo = {
   description:
     'How much do we know about the impact of technologies we use everyday? How much the web industry is responsible for carbon emissions? Can we define an ethic d...',
-  favicon: 'https://www.youtube.com/s/desktop/ce262d3b/img/favicon.ico',
+  favicon: 'https://www.youtube.com/s/desktop/1422277c/img/favicon.ico',
   image: 'https://i.ytimg.com/vi/feH26j3rBz8/maxresdefault.jpg',
   imageHeight: 720,
   imageWidth: 1280,
@@ -35,6 +35,30 @@ const rawmaterialSample: ILinkPreviewInfo = {
   videos: [],
 };
 
+const wikipediaSample: ILinkPreviewInfo = {
+  description: undefined,
+  favicon: 'https://en.wikipedia.org/static/favicon/wikipedia.ico',
+  image:
+    'https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Plone_5.2.png/1200px-Plone_5.2.png',
+  imageHeight: 1423,
+  imageWidth: 1200,
+  images: [
+    'https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Plone-logo.svg/121px-Plone-logo.svg.png',
+    'https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Plone_5.2.png/300px-Plone_5.2.png',
+    'https://upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png',
+    'https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/28px-Free_and_open-source_software_logo_%282009%29.svg.png',
+    'https://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png',
+    'https://upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png',
+    'https://en.wikipedia.org/static/images/footer/wikimedia-button.png',
+    'https://en.wikipedia.org/static/images/footer/poweredby_mediawiki_88x31.png',
+  ],
+  mediaType: 'website',
+  siteName: undefined,
+  title: 'Plone (software) - Wikipedia',
+  video: undefined,
+  videos: [],
+};
+
 it('gets correct info for RawMaterial website', async () => {
   const info = await getLinkPreview('https://rawmaterial.it/en');
   expect(info).toEqual(rawmaterialSample);
@@ -46,3 +70,10 @@ it('gets correct info for YouTube video link', async () => {
   );
   expect(info).toEqual(youtubeSample);
 });
+
+it('gets correct info for Wikipedia url', async () => {
+  const info = await getLinkPreview(
+    'https://en.wikipedia.org/wiki/Plone_(software)'
+  );
+  expect(info).toEqual(wikipediaSample);
+});