diff --git a/api/services/jsorg/[query].ts b/api/services/jsorg/[query].ts
new file mode 100644
index 0000000..3a53ebf
--- /dev/null
+++ b/api/services/jsorg/[query].ts
@@ -0,0 +1,32 @@
+import { send, sendError, fetch } from '../../../util/http';
+import { NowRequest, NowResponse } from '@vercel/node';
+
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse
+): Promise<void> {
+  const { query } = req.query;
+
+  if (!query || typeof query !== 'string') {
+    return sendError(res, new Error('No query given'));
+  }
+
+  if (!/([a-zA-Z0-9_-])\.js\.org/.test(query)) {
+    return sendError(res, new Error('Invalid format'));
+  }
+
+  try {
+    // Get js.org domain data from js.org.json repo
+    const domains = await fetch(
+      `https://raw.githubusercontent.com/raikasdev/js.org.json/master/output/subdomains_registered.min.json`,
+      'GET'
+    ).then((res) => res.json());
+    if (domains.includes(query)) {
+      send(res, { availability: false });
+    } else {
+      send(res, { availability: true });
+    }
+  } catch (err) {
+    sendError(res, err);
+  }
+}
diff --git a/src/components/cards/providers/JsOrg.tsx b/src/components/cards/providers/JsOrg.tsx
index 6ee2986..ec74d23 100644
--- a/src/components/cards/providers/JsOrg.tsx
+++ b/src/components/cards/providers/JsOrg.tsx
@@ -20,7 +20,7 @@ const JsOrgCard: React.FC<{ query: string }> = ({ query }) => {
         {(name) => (
           <DedicatedAvailability
             name={`${name}.js.org`}
-            service="dns"
+            service="jsorg"
             message="Go to js.org repository"
             link="https://github.com/js-org/js.org"
             messageIfTaken={`Go to ${name}.js.org`}