diff --git a/md-query.robot b/md-query.robot
index 6b0c41d..7b9a145 100644
--- a/md-query.robot
+++ b/md-query.robot
@@ -45,14 +45,14 @@ Variables  variables.py
   ${resp}=    Get Entity    baseUrl=${BASE_URL}  identifier=${ENTITY_ID_ENCODED}
   Dictionary Should Contain Key    ${resp.headers}  last-modified  msg=SHOULD return Last-Modified header
 
-4.1 Conditional Retrieval
+4.1 Conditional Retrieval (Optional)
   [Tags]  optional
   ${resp}=    Get Entity    baseUrl=${BASE_URL}  identifier=${ENTITY_ID_ENCODED}
   ${etag}=    Get From Dictionary    ${resp.headers}  ETag
   ${resp}=    Conditional Get Entity    baseUrl=${BASE_URL}  identifier=${ENTITY_ID_ENCODED}  etag=${etag}
   Should Be Equal As Strings    ${resp.status_code}  304  msg=SHOULD return HTTP status code 304
 
-4.2 Content Caching
+4.2 Content Caching (Optional)
   [Tags]  optional
   # "Responders SHOULD include cache control information with successful
   # (200 status code) responses, assuming the responder knows when