diff --git a/How-to-mark-a-web-site-as-trusted.md b/How-to-mark-a-web-site-as-trusted.md
index 3e98a3b..4d019ad 100644
--- a/How-to-mark-a-web-site-as-trusted.md
+++ b/How-to-mark-a-web-site-as-trusted.md
@@ -41,11 +41,12 @@ A comment is a line prefixed with `#`.  Comments are ignored by uBO.
 
 If no `/` appears in a trusted site directive, and if the directive contains characters which are not allowed for a plain hostname, then the trusted site directive will be commented out and ignored by uBO.  This allows you to fix your directive.
 
-#### Plain hostname
+#### Plain hostname 
 
-- `example.com`: matches on all pages from `example.com` or above (i.e. `example.com`, `www.example.com`).
-- `www.example.org`: matches on all pages from `www.example.org` or above (i.e. `www.example.org`, `forums.www.example.org`, but not `example.org`).
-- `org`: matches on all pages from TLD `org` (i.e. `example.org`, `wikipedia.org`).
+Matches the domain and all subdomains:
+- `example.org`: (i.e. `example.org`, `www.example.org`, `forums.www.example.org`).
+- `www.example.org`: (i.e. `www.example.org`, `forums.www.example.org`, but not `example.org`).
+- `org`: (i.e. `example.org`, `wikipedia.org`, `www.wikipedia.org`).
 
 #### Single web page