diff --git a/website/agenda/templates/coloradio/calendar.html b/website/agenda/templates/coloradio/calendar.html
index 3adacd0..fe73a73 100644
--- a/website/agenda/templates/coloradio/calendar.html
+++ b/website/agenda/templates/coloradio/calendar.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=3600, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/calendar_colo.html b/website/agenda/templates/coloradio/calendar_colo.html
index 23ba0c7..b8c0cc3 100644
--- a/website/agenda/templates/coloradio/calendar_colo.html
+++ b/website/agenda/templates/coloradio/calendar_colo.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=3600, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/calendar_js.html b/website/agenda/templates/coloradio/calendar_js.html
index 5d971aa..8eebe79 100644
--- a/website/agenda/templates/coloradio/calendar_js.html
+++ b/website/agenda/templates/coloradio/calendar_js.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=3600, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/calendar_mobile.html b/website/agenda/templates/coloradio/calendar_mobile.html
index 99db1a0..286970c 100644
--- a/website/agenda/templates/coloradio/calendar_mobile.html
+++ b/website/agenda/templates/coloradio/calendar_mobile.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=3600, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/comments.html b/website/agenda/templates/coloradio/comments.html
index 8529f98..faeda9d 100644
--- a/website/agenda/templates/coloradio/comments.html
+++ b/website/agenda/templates/coloradio/comments.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=5, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/comments.xml b/website/agenda/templates/coloradio/comments.xml
index 28ae71b..0e52ff7 100644
--- a/website/agenda/templates/coloradio/comments.xml
+++ b/website/agenda/templates/coloradio/comments.xml
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:application/atom+xml; charset=UTF-8
+Content-type:application/atom+xml; charset=UTF-8
Access-Control-Allow-Origin: *
diff --git a/website/agenda/templates/coloradio/event_details.html b/website/agenda/templates/coloradio/event_details.html
index 51f1cc0..66bb40a 100644
--- a/website/agenda/templates/coloradio/event_details.html
+++ b/website/agenda/templates/coloradio/event_details.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
diff --git a/website/agenda/templates/coloradio/event_details_orig.html b/website/agenda/templates/coloradio/event_details_orig.html
index c785d3f..7bd8703 100644
--- a/website/agenda/templates/coloradio/event_details_orig.html
+++ b/website/agenda/templates/coloradio/event_details_orig.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
gesucht und gefunden...
diff --git a/website/agenda/templates/coloradio/event_list.html b/website/agenda/templates/coloradio/event_list.html
index 1b1f0f7..9398755 100644
--- a/website/agenda/templates/coloradio/event_list.html
+++ b/website/agenda/templates/coloradio/event_list.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
diff --git a/website/agenda/templates/coloradio/event_list_2.html b/website/agenda/templates/coloradio/event_list_2.html
index 49a0aff..3835086 100644
--- a/website/agenda/templates/coloradio/event_list_2.html
+++ b/website/agenda/templates/coloradio/event_list_2.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
diff --git a/website/agenda/templates/coloradio/event_list_image.html b/website/agenda/templates/coloradio/event_list_image.html
index b7100d2..601f055 100644
--- a/website/agenda/templates/coloradio/event_list_image.html
+++ b/website/agenda/templates/coloradio/event_list_image.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
diff --git a/website/agenda/templates/coloradio/event_menu.html b/website/agenda/templates/coloradio/event_menu.html
index 17a2c18..21b538e 100644
--- a/website/agenda/templates/coloradio/event_menu.html
+++ b/website/agenda/templates/coloradio/event_menu.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=UTF-8;
+Content-type:text/html; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/event_pure1.html b/website/agenda/templates/coloradio/event_pure1.html
index ba0f978..3790f81 100644
--- a/website/agenda/templates/coloradio/event_pure1.html
+++ b/website/agenda/templates/coloradio/event_pure1.html
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/html; charset=utf-8;
+Content-type:text/html; charset=utf-8;
diff --git a/website/agenda/templates/coloradio/event_rds.txt b/website/agenda/templates/coloradio/event_rds.txt
index 948003b..60bf446 100644
--- a/website/agenda/templates/coloradio/event_rds.txt
+++ b/website/agenda/templates/coloradio/event_rds.txt
@@ -1,4 +1,3 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/plain; charset=UTF-8;
+Content-type:text/plain; charset=UTF-8;
diff --git a/website/agenda/templates/coloradio/event_running_id.html b/website/agenda/templates/coloradio/event_running_id.html
index c817189..72fa506 100644
--- a/website/agenda/templates/coloradio/event_running_id.html
+++ b/website/agenda/templates/coloradio/event_running_id.html
@@ -1 +1 @@
-Cache-Control: max-age=600, must-revalidateContent-type:text/html; charset=UTF-8;1
\ No newline at end of file
+Content-type:text/html; charset=UTF-8;1
\ No newline at end of file
diff --git a/website/agenda/templates/coloradio/event_utc_time.txt b/website/agenda/templates/coloradio/event_utc_time.txt
index d663da3..2330398 100644
--- a/website/agenda/templates/coloradio/event_utc_time.txt
+++ b/website/agenda/templates/coloradio/event_utc_time.txt
@@ -1,5 +1,4 @@
-Cache-Control: max-age=600, must-revalidate
-Content-type:text/plain; charset=utf-8;
+Content-type:text/plain; charset=utf-8;