diff --git a/main.go b/main.go
index a74778c..98ecb14 100644
--- a/main.go
+++ b/main.go
@@ -27,7 +27,7 @@ func main() {
 			parsed, err := url.Parse(inputUrl)
 			if err != nil {
 				c.HTML(200, "home.html", gin.H{
-					"error": err.Error(),
+					"Error": "Invalid URL",
 				})
 				return
 			}
@@ -39,21 +39,21 @@ func main() {
 			if lists.ContainsString(lists.RedditDomains, parsed.Host) {
 				// replace domain with discuss.whatever.social
 				parsed.Host = "discuss.whatever.social"
-			}
-
-			if lists.ContainsString(lists.TwitterDomains, parsed.Host) {
+			} else if lists.ContainsString(lists.TwitterDomains, parsed.Host) {
 				// replace domain with read.whatever.social
 				parsed.Host = "read.whatever.social"
-			}
-
-			if lists.ContainsString(lists.YouTubeDomains, parsed.Host) {
+			} else if lists.ContainsString(lists.YouTubeDomains, parsed.Host) {
 				// replace domain with watch.whatever.social
 				parsed.Host = "watch.whatever.social"
-			}
-
-			if lists.ContainsString(lists.StackOverflowDomains, parsed.Host) {
+			} else if lists.ContainsString(lists.StackOverflowDomains, parsed.Host) {
 				// replace domain with code.whatever.social
 				parsed.Host = "code.whatever.social"
+			} else {
+				// send error
+				c.HTML(200, "home.html", gin.H{
+					"Error": "Unsupported domain",
+				})
+				return
 			}
 
 			if parsed.Host != originalParsedHost {
diff --git a/static/styles/home.css b/static/styles/home.css
index 356ce7c..8430c44 100644
--- a/static/styles/home.css
+++ b/static/styles/home.css
@@ -251,3 +251,17 @@ code {
     font-size: 0.9rem;
     font-family: "Fira Code", monospace;
 }
+
+.error {
+    width: 100%;
+    background-color: rgb(255, 153, 153);
+    color: black;
+    padding: 0.5rem;
+    box-sizing: border-box;
+    border-radius: 5px;
+    margin-top: 1rem;
+}
+
+.error p {
+    margin: 0;
+}
diff --git a/templates/home.html b/templates/home.html
index 656c939..9e71abb 100644
--- a/templates/home.html
+++ b/templates/home.html
@@ -55,6 +55,11 @@
                         <h1>Launchpad</h1>
                     </div>
                 </a>
+                {{ if .Error }}
+                <div class="error">
+                    <p>{{ .Error }}</p>
+                </div>
+                {{ end }}
                 <form action="/">
                     <div class="url-input">
                         <input