diff --git a/DNS-alias-mode.md b/DNS-alias-mode.md
index 984eb5b..732e612 100644
--- a/DNS-alias-mode.md
+++ b/DNS-alias-mode.md
@@ -177,18 +177,3 @@ Then issue cert like:
 acme.sh --issue -d  a.com  --domain-alias  myalias.B.com   --dns dns_cf
 ```
 
-**Note:** Don't use the domain name only for --domain-alias.
-```sh
-acme.sh --issue -d  a.com  --domain-alias B.com   --dns dns_cf
-```
-This would require that a TXT record is created at the domain apex i.e. @ TXT "myvalidationcode". Since adding a value at the apex of a domain requires a different syntax for adding the DNS records it cannot be used in this form.
-
-If you really want to create the validation records at the domain apex then depending on the implementation of the dns api you have to use
-
-```sh
-acme.sh --issue -d  a.com  --domain-alias @.B.com   --dns dns_cf
-```
-or
-```sh
-acme.sh --issue -d  a.com  --domain-alias .B.com   --dns dns_cf
-```
\ No newline at end of file