diff --git a/src/gemini/dummy-server.lisp b/src/gemini/dummy-server.lisp
index f78c34a..183fe99 100644
--- a/src/gemini/dummy-server.lisp
+++ b/src/gemini/dummy-server.lisp
@@ -59,6 +59,22 @@ and  key   stored  in  the   file  pointed  by  the   filesystem  path
                                                     request
                                                     client-cert-fingerprint)
                                             (cond
+                                              ((cl-ppcre:scan "slow" request)
+                                               (format t "slow...~%")
+                                               (let ((response (format nil
+                                                                       "~a text/gemini~a~a"
+                                                                       (code gemini-client::+20+)
+                                                                       #\return #\newline)))
+                                                 (format t "sending: ~a~%" response)
+                                                 (write-sequence (text-utils:string->octets response)
+                                                                 stream)
+                                                 (loop for i from 0 below 10000 do
+                                                   (sleep 1)
+                                                   (write-sequence (text-utils:string->octets (format nil "~a~%" i))
+                                                                   stream)
+                                                   (finish-output stream))
+                                                 (close stream)
+                                                 (get-data)))
                                               ((cl-ppcre:scan "timeout" request)
                                                (format t "timeout...~%")
                                                (sleep 3600))