diff --git a/v3/public-resolvers.md b/v3/public-resolvers.md
index 6ba223b1..8ffe8656 100644
--- a/v3/public-resolvers.md
+++ b/v3/public-resolvers.md
@@ -2054,8 +2054,9 @@ sdns://AgUAAAAAAAAACjEwMy4yLjU3LjUgmOPV5TavKVjNL38U9wTvSidtJeM81l8uZfXk8nJ8EzARc
 # iqdns-doh
 
 Non-logging DoH service runned by V2EX.com user johnsonwil, 
-it has a manual blacklist which returns "no such domain". It 
-also supports DNSSEC. https://www.v2ex.com/t/785666
+it has a manual blacklist which returns "no such domain", the 
+blacklist contains anti Chinese government websites.
+It also supports DNSSEC. Releasing page: https://www.v2ex.com/t/785666
 
 sdns://AgMAAAAAAAAAACCi3jNJDEdtNW4tvHN8J3lpIklSa2Wrj7qaNCgEgci9_BNhLnBhc3NjbG91ZC54eXo6NDQzCi9kbnMtcXVlcnk