diff --git a/lib/core/Head.js b/lib/core/Head.js
index f8de01d4082c..b2485fe942a0 100644
--- a/lib/core/Head.js
+++ b/lib/core/Head.js
@@ -29,6 +29,11 @@ class Head extends React.Component {
           highlight.version
         }/styles/${highlight.theme}.min.css`;
 
+    // ensure the siteUrl variable ends with a single slash
+    const siteUrl =
+      (this.props.config.url + this.props.config.baseUrl).replace(/\/+$/, '') +
+      '/';
+
     return (
       <head>
         <meta charSet="utf-8" />
@@ -44,22 +49,14 @@ class Head extends React.Component {
         {this.props.config.ogImage && (
           <meta
             property="og:image"
-            content={
-              this.props.config.url +
-              this.props.config.baseUrl +
-              this.props.config.ogImage
-            }
+            content={siteUrl + this.props.config.ogImage}
           />
         )}
         <meta name="twitter:card" content="summary" />
         {this.props.config.twitterImage && (
           <meta
             name="twitter:image"
-            content={
-              this.props.config.url +
-              this.props.config.baseUrl +
-              this.props.config.twitterImage
-            }
+            content={siteUrl + this.props.config.twitterImage}
           />
         )}
         {this.props.config.noIndex && <meta name="robots" content="noindex" />}
@@ -81,7 +78,7 @@ class Head extends React.Component {
           <link
             rel="alternate"
             type="application/atom+xml"
-            href={this.props.config.url + '/blog/atom.xml'}
+            href={siteUrl + 'blog/atom.xml'}
             title={this.props.config.title + ' Blog ATOM Feed'}
           />
         )}
@@ -89,7 +86,7 @@ class Head extends React.Component {
           <link
             rel="alternate"
             type="application/rss+xml"
-            href={this.props.config.url + '/blog/feed.xml'}
+            href={siteUrl + 'blog/feed.xml'}
             title={this.props.config.title + ' Blog RSS Feed'}
           />
         )}
