diff --git a/playbooks/group_vars/certcheck.yaml b/playbooks/group_vars/certcheck.yaml
index 890cac8b09..aef752eeb2 100644
--- a/playbooks/group_vars/certcheck.yaml
+++ b/playbooks/group_vars/certcheck.yaml
@@ -3,3 +3,4 @@ letsencrypt_certcheck_additional_domains:
   - wiki.openstack.org 443
   - www.openstack.org 443
   - us.linaro.cloud 5000
+  - download.cirros-cloud.net 443