diff --git a/src/proxy/azure.ts b/src/proxy/azure.ts
index a4f9ea2..6571e43 100644
--- a/src/proxy/azure.ts
+++ b/src/proxy/azure.ts
@@ -43,8 +43,8 @@ const azureOpenaiResponseHandler: ProxyResHandlerWithBody = async (
 const azureOpenAIProxy = createQueuedProxyMiddleware({
   target: ({ signedRequest }) => {
     if (!signedRequest) throw new Error("Must sign request before proxying");
-    const { hostname, path } = signedRequest;
-    return `https://${hostname}${path}`;
+    const { hostname, protocol } = signedRequest;
+    return `${protocol}//${hostname}`;
   },
   mutations: [addAzureKey, finalizeSignedRequest],
   blockingResponseHandler: azureOpenaiResponseHandler,
diff --git a/src/shared/key-management/azure/checker.ts b/src/shared/key-management/azure/checker.ts
index 423ee40..bd644ba 100644
--- a/src/shared/key-management/azure/checker.ts
+++ b/src/shared/key-management/azure/checker.ts
@@ -68,6 +68,14 @@ export class AzureOpenAIKeyChecker extends KeyCheckerBase<AzureOpenAIKey> {
           });
         case "429":
           const headers = error.response.headers;
+          const retryAfter = Number(headers["retry-after"] || 0);
+          if (retryAfter > 3600) {
+            this.log.warn(
+              { key: key.hash, errorType, error: error.response.data, headers },
+              "Key has an excessive rate limit and will be disabled."
+            );
+            return this.updateKey(key.hash, { isDisabled: true });
+          }
           this.log.warn(
             { key: key.hash, errorType, error: error.response.data, headers },
             "Key is rate limited. Rechecking key in 1 minute."