Add EDE 30 to extended dns error codes

Author: mworsley-cloudflare

src/content/docs/1.1.1.1/infrastructure/extended-dns-error-codes.mdx

@@ -108,6 +108,12 @@ slug: 1.1.1.1/infrastructure/extended-dns-error-codes
             <td><code>EDE: 23 (Network Error): (1.1.1.1:53 rcode=SERVFAIL for example.com. A)</code></td>
             <td>1.1.1.1 could not determine a network path to the upstream nameservers, or the nameserver did not respond. If this issue persists, reach out to the <a href="https://community.cloudflare.com/c/reliability/dns-1111/47">community forum</a>.</td>
         </tr>
+        <tr>
+            <td>30</td>
+            <td>Invalid Query Type</td>
+            <td><code>EDE: 30 (Invalid Query Type): Invalid Query Type</code></td>
+            <td>The record type in the request can't give a valid answer. If this is returned for standard query types, such as A or AAAA records, please reach out to the <a href="https://community.cloudflare.com/c/reliability/dns-1111/47">community forum</a>.</td>
+        </tr>
     </tbody>
 </table>